不亮堂或许称的上是OPRADOM,其实就是2个DBHelper。看到英特网海人民广播广播台湾大学人写自身的O凯雷德M,但小编感觉都不太好。

   
不晓得大概称的上是O本田CR-VM,其实正是三个DBHelper。看到网络广大人写自身的OSportageM,但自身觉着都不太好。

援助Oracle、MSSQL、MySQL、SQLite各样数据库,援助职业,辅助对象关联映射;已在八个种类中其实应用。

匡助Oracle、MSSQL、MySQL、SQLite各种数据库,辅助职业,协助对象关系映射;已在八个品种中其实使用。

   
笔者那么些ORubiconM,学习费用非常低,常用的方法仅有多少个,在行使的长河中,你不须要有太多要注意的地方,也不会有“小编怎么贯彻连表查询”的难题。反射牺牲局部性质,可是降低了贯彻和使用的复杂度。

   
作者这么些O帕杰罗M,学习成本非常的低,常用的方法仅有多少个,在采纳的长河中,你不要求有太多要注意的地点,也不会有“小编何以贯彻连表查询”的疑云。反射就义局地属性,可是下跌了完成和采取的复杂度。

并未语法糖,学费差不多为0,拿来即用。

从没语法糖,学习花费大约为0,拿来即用。

    援救Oracle、MSSQL、MySQL、SQLite多样数据库,并配有Model生成器。

    支持Oracle、MSSQL、MySQL、SQLite各类数据库,并配有Model生成器。

DBHelper类完整代码:

DBHelper类完整代码:

Model层的宏图:

Model层的安插性:

金沙注册送58 1金沙注册送58 2

金沙注册送58 3金沙注册送58 4

金沙注册送58 5

金沙注册送58 6

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Data.Common;
using System.Data.Objects.DataClasses;
using System.Data.OracleClient;
using System.Data.SqlClient;
using System.Data.SQLite;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using Models;
using MySql.Data.MySqlClient;

/* ---------------------------------------------
 * 作    者:suxiang
 * 创建日期:2016年11月23日
 * --------------------------------------------- */

namespace DBUtil
{
    /// <summary>
    /// 数据库操作类
    /// </summary>
    public static class DBHelper
    {
        #region 变量
        /// <summary>
        /// 数据库类型
        /// </summary>
        private static string m_DBType = ConfigurationManager.AppSettings["DBType"];
        /// <summary>
        /// 数据库类型
        /// </summary>
        private static bool m_AutoIncrement = ConfigurationManager.AppSettings["AutoIncrement"].ToLower() == "true" ? true : false;
        /// <summary>
        /// 数据库连接字符串
        /// </summary>
        private static string m_ConnectionString = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString();
        /// <summary>
        /// 事务
        /// </summary>
        [ThreadStatic]
        private static DbTransaction m_Tran;
        /// <summary>
        /// 带参数的SQL插入和修改语句中,参数前面的符号
        /// </summary>
        private static string m_ParameterMark = GetParameterMark();
        #endregion

        #region 生成变量
        #region 生成 IDbCommand
        /// <summary>
        /// 生成 IDbCommand
        /// </summary>
        private static DbCommand GetCommand()
        {
            DbCommand command = null;

            switch (m_DBType)
            {
                case "oracle":
                    command = new OracleCommand();
                    break;
                case "mssql":
                    command = new SqlCommand();
                    break;
                case "mysql":
                    command = new MySqlCommand();
                    break;
                case "sqlite":
                    command = new SQLiteCommand();
                    break;
            }

            return command;
        }
        /// <summary>
        /// 生成 IDbCommand
        /// </summary>
        private static DbCommand GetCommand(string sql, DbConnection conn)
        {
            DbCommand command = null;

            switch (m_DBType)
            {
                case "oracle":
                    command = new OracleCommand(sql);
                    command.Connection = conn;
                    break;
                case "mssql":
                    command = new SqlCommand(sql);
                    command.Connection = conn;
                    break;
                case "mysql":
                    command = new MySqlCommand(sql);
                    command.Connection = conn;
                    break;
                case "sqlite":
                    command = new SQLiteCommand(sql);
                    command.Connection = conn;
                    break;
            }

            return command;
        }
        #endregion

        #region 生成 IDbConnection
        /// <summary>
        /// 生成 IDbConnection
        /// </summary>
        private static DbConnection GetConnection()
        {
            DbConnection conn = null;

            switch (m_DBType)
            {
                case "oracle":
                    conn = new OracleConnection(m_ConnectionString);
                    break;
                case "mssql":
                    conn = new SqlConnection(m_ConnectionString);
                    break;
                case "mysql":
                    conn = new MySqlConnection(m_ConnectionString);
                    break;
                case "sqlite":
                    conn = new SQLiteConnection(m_ConnectionString);
                    break;
            }

            return conn;
        }
        #endregion

        #region 生成 IDbDataAdapter
        /// <summary>
        /// 生成 IDbDataAdapter
        /// </summary>
        private static DbDataAdapter GetDataAdapter(DbCommand cmd)
        {
            DbDataAdapter dataAdapter = null;

            switch (m_DBType)
            {
                case "oracle":
                    dataAdapter = new OracleDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
                case "mssql":
                    dataAdapter = new SqlDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
                case "mysql":
                    dataAdapter = new MySqlDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
                case "sqlite":
                    dataAdapter = new SQLiteDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
            }

            return dataAdapter;
        }
        #endregion

        #region 生成 m_ParameterMark
        /// <summary>
        /// 生成 m_ParameterMark
        /// </summary>
        private static string GetParameterMark()
        {
            switch (m_DBType)
            {
                case "oracle":
                    return ":";
                case "mssql":
                    return "@";
                case "mysql":
                    return "@";
                case "sqlite":
                    return ":";
            }
            return ":";
        }
        #endregion

        #region 生成 DbParameter
        /// <summary>
        /// 生成 DbParameter
        /// </summary>
        private static DbParameter GetDbParameter(string name, object vallue)
        {
            DbParameter dbParameter = null;

            switch (m_DBType)
            {
                case "oracle":
                    dbParameter = new OracleParameter(name, vallue);
                    break;
                case "mssql":
                    dbParameter = new SqlParameter(name, vallue);
                    break;
                case "mysql":
                    dbParameter = new MySqlParameter(name, vallue);
                    break;
                case "sqlite":
                    dbParameter = new SQLiteParameter(name, vallue);
                    break;
            }

            return dbParameter;
        }
        #endregion
        #endregion

        #region 基础方法
        #region  执行简单SQL语句
        #region Exists
        public static bool Exists(string sqlString)
        {
            SqlFilter(ref sqlString);
            using (DbConnection conn = GetConnection())
            {
                using (DbCommand cmd = GetCommand(sqlString, conn))
                {
                    try
                    {
                        conn.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return false;
                        }
                        else
                        {
                            return true;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                    finally
                    {
                        cmd.Dispose();
                        conn.Close();
                    }
                }
            }
        }
        #endregion

        #region 执行SQL语句,返回影响的记录数
        /// <summary>
        /// 执行SQL语句,返回影响的记录数
        /// </summary>
        /// <param name="sqlString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(string sqlString)
        {
            SqlFilter(ref sqlString);
            DbConnection conn = m_Tran == null ? GetConnection() : m_Tran.Connection;
            using (DbCommand cmd = GetCommand(sqlString, conn))
            {
                try
                {
                    if (conn.State != ConnectionState.Open) conn.Open();
                    if (m_Tran != null) cmd.Transaction = m_Tran;
                    int rows = cmd.ExecuteNonQuery();
                    return rows;
                }
                catch (Exception ex)
                {
                    throw new Exception(ex.Message);
                }
                finally
                {
                    cmd.Dispose();
                    if (m_Tran == null) conn.Close();
                }
            }
        }
        #endregion

        #region 执行一条计算查询结果语句,返回查询结果
        /// <summary>
        /// 执行一条计算查询结果语句,返回查询结果(object)
        /// </summary>
        /// <param name="sqlString">计算查询结果语句</param>
        /// <returns>查询结果(object)</returns>
        public static object GetSingle(string sqlString)
        {
            SqlFilter(ref sqlString);
            using (DbConnection conn = GetConnection())
            {
                using (DbCommand cmd = GetCommand(sqlString, conn))
                {
                    try
                    {
                        if (conn.State != ConnectionState.Open) conn.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return null;
                        }
                        else
                        {
                            return obj;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                    finally
                    {
                        cmd.Dispose();
                    }
                }
            }
        }
        #endregion

        #region 执行查询语句,返回IDataReader
        /// <summary>
        /// 执行查询语句,返回IDataReader ( 注意:调用该方法后,一定要对IDataReader进行Close )
        /// </summary>
        /// <param name="sqlString">查询语句</param>
        /// <returns>IDataReader</returns>
        public static DbDataReader ExecuteReader(string sqlString)
        {
            SqlFilter(ref sqlString);
            DbConnection conn = GetConnection();
            DbCommand cmd = GetCommand(sqlString, conn);
            try
            {
                if (conn.State != ConnectionState.Open) conn.Open();
                DbDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                return myReader;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion

        #region 执行查询语句,返回DataSet
        /// <summary>
        /// 执行查询语句,返回DataSet
        /// </summary>
        /// <param name="sqlString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(string sqlString)
        {
            SqlFilter(ref sqlString);
            using (DbConnection conn = GetConnection())
            {
                DataSet ds = new DataSet();
                try
                {
                    conn.Open();
                    using (DbCommand cmd = GetCommand(sqlString, conn))
                    {
                        DbDataAdapter adapter = GetDataAdapter(cmd);
                        adapter.Fill(ds, "ds");
                    }
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    conn.Close();
                }
                return ds;
            }
        }
        #endregion

        #region SQL过滤,防注入
        /// <summary>
        /// SQL过滤,防注入
        /// </summary>
        /// <param name="sql">sql</param>
        public static void SqlFilter(ref string sql)
        {
            sql = sql.Trim();
            List<string> keywordList = new List<string>() { 
                "net localgroup",
                "net user",
                "xp_cmdshell",
                "exec",
                "execute",
                "truncate",
                "drop",
                "restore",
                "create",
                "alter",
                "rename",
                "insert",
                "update",
                "delete",
                "select"};
            string ignore = string.Empty;
            string upperSql = sql.ToUpper();
            foreach (string keyword in keywordList)
            {
                if (upperSql.IndexOf(keyword.ToUpper()) == 0)
                {
                    ignore = keyword;
                }
            }
            foreach (string keyword in keywordList)
            {
                if (ignore == "select" && ignore == keyword) continue;
                Regex regex = new Regex(keyword, RegexOptions.IgnoreCase);
                sql = sql.Substring(0, ignore.Length) + regex.Replace(sql.Substring(ignore.Length), string.Empty);
            }
        }
        #endregion
        #endregion

        #region 执行带参数的SQL语句
        #region 执行SQL语句,返回影响的记录数
        /// <summary>
        /// 执行SQL语句,返回影响的记录数
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(string SQLString, params DbParameter[] cmdParms)
        {
            DbConnection conn = m_Tran == null ? GetConnection() : m_Tran.Connection;
            using (DbCommand cmd = GetCommand())
            {
                try
                {
                    PrepareCommand(cmd, conn, m_Tran, SQLString, cmdParms);
                    int rows = cmd.ExecuteNonQuery();
                    cmd.Parameters.Clear();
                    return rows;
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    cmd.Dispose();
                    if (m_Tran == null) conn.Close();
                }
            }
        }
        #endregion

        #region 执行查询语句,返回IDataReader
        /// <summary>
        /// 执行查询语句,返回IDataReader ( 注意:调用该方法后,一定要对IDataReader进行Close )
        /// </summary>
        /// <param name="strSQL">查询语句</param>
        /// <returns>IDataReader</returns>
        public static DbDataReader ExecuteReader(string sqlString, params DbParameter[] cmdParms)
        {
            DbConnection conn = GetConnection();
            DbCommand cmd = GetCommand();
            try
            {
                PrepareCommand(cmd, conn, null, sqlString, cmdParms);
                DbDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                cmd.Parameters.Clear();
                return myReader;
            }
            catch (Exception ex)
            {
                throw ex;
            }

        }
        #endregion

        #region 执行查询语句,返回DataSet
        /// <summary>
        /// 执行查询语句,返回DataSet
        /// </summary>
        /// <param name="sqlString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(string sqlString, params DbParameter[] cmdParms)
        {
            DbConnection conn = GetConnection();
            DbCommand cmd = GetCommand();
            PrepareCommand(cmd, conn, null, sqlString, cmdParms);
            using (DbDataAdapter da = GetDataAdapter(cmd))
            {
                DataSet ds = new DataSet();
                try
                {
                    da.Fill(ds, "ds");
                    cmd.Parameters.Clear();
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    cmd.Dispose();
                    conn.Close();
                }
                return ds;
            }
        }
        #endregion

        #region PrepareCommand
        private static void PrepareCommand(DbCommand cmd, DbConnection conn, DbTransaction trans, string cmdText, DbParameter[] cmdParms)
        {
            if (conn.State != ConnectionState.Open) conn.Open();
            cmd.Connection = conn;
            cmd.CommandText = cmdText;
            if (trans != null) cmd.Transaction = trans;
            cmd.CommandType = CommandType.Text;
            if (cmdParms != null)
            {
                foreach (DbParameter parm in cmdParms)
                {
                    cmd.Parameters.Add(parm);
                }
            }
        }
        #endregion
        #endregion
        #endregion

        #region 增删改查
        #region 获取最大编号
        /// <summary>
        /// 获取最大编号
        /// </summary>
        /// <typeparam name="T">实体Model</typeparam>
        /// <param name="key">主键</param>
        public static int GetMaxID<T>(string key)
        {
            Type type = typeof(T);

            string sql = null;
            switch (m_DBType)
            {
                case "oracle":
                    sql = string.Format("SELECT Max({0}) FROM {1}", key, type.Name);
                    break;
                case "mssql":
                    sql = string.Format("SELECT Max({0}) FROM {1}", key, type.Name);
                    break;
                case "mysql":
                    sql = string.Format("SELECT Max({0}) FROM {1}", key, type.Name);
                    break;
                case "sqlite":
                    sql = string.Format("SELECT Max(cast({0} as int)) FROM {1}", key, type.Name);
                    break;
            }

            using (DbConnection conn = GetConnection())
            {
                using (IDbCommand cmd = GetCommand(sql, conn))
                {
                    try
                    {
                        conn.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return 1;
                        }
                        else
                        {
                            return int.Parse(obj.ToString()) + 1;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                    finally
                    {
                        cmd.Dispose();
                        conn.Close();
                    }
                }
            }
        }
        #endregion

        #region 添加
        /// <summary>
        /// 添加
        /// </summary>
        public static void Insert(object obj)
        {
            Insert(obj, m_AutoIncrement);
        }
        /// <summary>
        /// 添加
        /// </summary>
        public static void Insert(object obj, bool autoIncrement)
        {
            StringBuilder strSql = new StringBuilder();
            Type type = obj.GetType();
            strSql.Append(string.Format("insert into {0}(", type.Name));

            PropertyInfo[] propertyInfoList = GetEntityProperties(type);
            List<string> propertyNameList = new List<string>();
            int savedCount = 0;
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(IsIdAttribute), false).Length > 0 && autoIncrement) return;
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    propertyNameList.Add(propertyInfo.Name);
                    savedCount++;
                }
            }

            strSql.Append(string.Format("{0})", string.Join(",", propertyNameList.ToArray())));
            strSql.Append(string.Format(" values ({0})", string.Join(",", propertyNameList.ConvertAll<string>(a => m_ParameterMark + a).ToArray())));
            DbParameter[] parameters = new DbParameter[savedCount];
            int k = 0;
            for (int i = 0; i < propertyInfoList.Length && savedCount > 0; i++)
            {
                PropertyInfo propertyInfo = propertyInfoList[i];
                if (propertyInfo.GetCustomAttributes(typeof(IsIdAttribute), false).Length > 0 && autoIncrement) return;
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    object val = propertyInfo.GetValue(obj, null);
                    DbParameter param = GetDbParameter(m_ParameterMark + propertyInfo.Name, val == null ? DBNull.Value : val);
                    parameters[k++] = param;
                }
            }

            ExecuteSql(strSql.ToString(), parameters);
        }
        #endregion

        #region 修改
        /// <summary>
        /// 修改
        /// </summary>
        public static void Update(object obj)
        {
            object oldObj = Find(obj, false);
            if (oldObj == null) throw new Exception("无法获取到旧数据");

            StringBuilder strSql = new StringBuilder();
            Type type = obj.GetType();
            strSql.Append(string.Format("update {0} ", type.Name));

            PropertyInfo[] propertyInfoList = GetEntityProperties(type);
            List<string> propertyNameList = new List<string>();
            int savedCount = 0;
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    object oldVal = propertyInfo.GetValue(oldObj, null);
                    object val = propertyInfo.GetValue(obj, null);
                    if (!object.Equals(oldVal, val))
                    {
                        propertyNameList.Add(propertyInfo.Name);
                        savedCount++;
                    }
                }
            }

            strSql.Append(string.Format(" set "));
            DbParameter[] parameters = new DbParameter[savedCount];
            StringBuilder sbPros = new StringBuilder();
            int k = 0;
            for (int i = 0; i < propertyInfoList.Length && savedCount > 0; i++)
            {
                PropertyInfo propertyInfo = propertyInfoList[i];
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    object oldVal = propertyInfo.GetValue(oldObj, null);
                    object val = propertyInfo.GetValue(obj, null);
                    if (!object.Equals(oldVal, val))
                    {
                        sbPros.Append(string.Format(" {0}={1}{0},", propertyInfo.Name, m_ParameterMark));
                        DbParameter param = GetDbParameter(m_ParameterMark + propertyInfo.Name, val == null ? DBNull.Value : val);
                        parameters[k++] = param;
                    }
                }
            }
            if (sbPros.Length > 0)
            {
                strSql.Append(sbPros.ToString(0, sbPros.Length - 1));
            }
            strSql.Append(string.Format(" where {0}='{1}'", GetIdName(obj.GetType()), GetIdVal(obj).ToString()));

            if (savedCount > 0)
            {
                ExecuteSql(strSql.ToString(), parameters);
            }
        }
        #endregion

        #region 删除
        /// <summary>
        /// 根据Id删除
        /// </summary>
        public static void Delete<T>(int id)
        {
            Type type = typeof(T);
            StringBuilder sbSql = new StringBuilder();
            DbParameter[] cmdParms = new DbParameter[1];
            cmdParms[0] = GetDbParameter(m_ParameterMark + GetIdName(type), id);
            sbSql.Append(string.Format("delete from {0} where {2}={1}{2}", type.Name, m_ParameterMark, GetIdName(type)));

            ExecuteSql(sbSql.ToString(), cmdParms);
        }
        /// <summary>
        /// 根据Id集合删除
        /// </summary>
        public static void BatchDelete<T>(string ids)
        {
            if (string.IsNullOrWhiteSpace(ids)) return;

            Type type = typeof(T);
            StringBuilder sbSql = new StringBuilder();
            string[] idArr = ids.Split(',');
            DbParameter[] cmdParms = new DbParameter[idArr.Length];
            sbSql.AppendFormat("delete from {0} where {1} in (", type.Name, GetIdName(type));
            for (int i = 0; i < idArr.Length; i++)
            {
                cmdParms[i] = GetDbParameter(m_ParameterMark + GetIdName(type) + i, idArr[i]);
                sbSql.AppendFormat("{1}{2}{3},", type.Name, m_ParameterMark, GetIdName(type), i);
            }
            sbSql.Remove(sbSql.Length - 1, 1);
            sbSql.Append(")");

            ExecuteSql(sbSql.ToString(), cmdParms);
        }
        /// <summary>
        /// 根据条件删除
        /// </summary>
        public static void Delete<T>(string conditions)
        {
            if (string.IsNullOrWhiteSpace(conditions)) return;

            Type type = typeof(T);
            StringBuilder sbSql = new StringBuilder();
            SqlFilter(ref conditions);
            sbSql.Append(string.Format("delete from {0} where {1}", type.Name, conditions));

            ExecuteSql(sbSql.ToString());
        }
        #endregion

        #region 获取实体
        #region 根据实体获取实体
        /// <summary>
        /// 根据实体获取实体
        /// </summary>
        private static object Find(object obj, bool readCache = true)
        {
            Type type = obj.GetType();

            object result = Activator.CreateInstance(type);
            bool hasValue = false;
            IDataReader rd = null;

            string sql = string.Format("select * from {0} where {2}='{1}'", type.Name, GetIdVal(obj), GetIdName(obj.GetType()));

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return null;
            }
        }
        #endregion

        #region 根据Id获取实体
        /// <summary>
        /// 根据Id获取实体
        /// </summary>
        private static object FindById(Type type, int id)
        {
            object result = Activator.CreateInstance(type);
            IDataReader rd = null;
            bool hasValue = false;

            string sql = string.Format("select * from {0} where {2}='{1}'", type.Name, id, GetIdName(type));

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return null;
            }
        }
        #endregion

        #region 根据Id获取实体
        /// <summary>
        /// 根据Id获取实体
        /// </summary>
        public static T FindById<T>(string id) where T : new()
        {
            Type type = typeof(T);
            T result = (T)Activator.CreateInstance(type);
            IDataReader rd = null;
            bool hasValue = false;

            string sql = string.Format("select * from {0} where {2}='{1}'", type.Name, id, GetIdName(type));

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return default(T);
            }
        }
        #endregion

        #region 根据sql获取实体
        /// <summary>
        /// 根据sql获取实体
        /// </summary>
        public static T FindBySql<T>(string sql) where T : new()
        {
            Type type = typeof(T);
            T result = (T)Activator.CreateInstance(type);
            IDataReader rd = null;
            bool hasValue = false;

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return default(T);
            }
        }
        #endregion
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        public static List<T> FindListBySql<T>(string sql) where T : new()
        {
            List<T> list = new List<T>();
            object obj;
            IDataReader rd = null;

            try
            {
                rd = ExecuteReader(sql);

                if (typeof(T) == typeof(int))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else if (typeof(T) == typeof(string))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else
                {
                    PropertyInfo[] propertyInfoList = (typeof(T)).GetProperties();

                    int fcnt = rd.FieldCount;
                    List<string> fileds = new List<string>();
                    for (int i = 0; i < fcnt; i++)
                    {
                        fileds.Add(rd.GetName(i).ToUpper());
                    }

                    while (rd.Read())
                    {
                        IDataRecord record = rd;
                        obj = new T();


                        foreach (PropertyInfo pro in propertyInfoList)
                        {
                            if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                            {
                                continue;
                            }

                            pro.SetValue(obj, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                        }
                        list.Add((T)obj);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            return list;
        }
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        public static List<T> FindListBySql<T>(string sql, params DbParameter[] cmdParms) where T : new()
        {
            List<T> list = new List<T>();
            object obj;
            IDataReader rd = null;

            try
            {
                rd = ExecuteReader(sql, cmdParms);

                if (typeof(T) == typeof(int))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else if (typeof(T) == typeof(string))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else
                {
                    PropertyInfo[] propertyInfoList = (typeof(T)).GetProperties();

                    int fcnt = rd.FieldCount;
                    List<string> fileds = new List<string>();
                    for (int i = 0; i < fcnt; i++)
                    {
                        fileds.Add(rd.GetName(i).ToUpper());
                    }

                    while (rd.Read())
                    {
                        IDataRecord record = rd;
                        obj = new T();


                        foreach (PropertyInfo pro in propertyInfoList)
                        {
                            if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                            {
                                continue;
                            }

                            pro.SetValue(obj, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                        }
                        list.Add((T)obj);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            return list;
        }
        #endregion

        #region 分页获取列表
        /// <summary>
        /// 分页(任意entity,尽量少的字段)
        /// </summary>
        public static PagerModel FindPageBySql<T>(string sql, string orderby, int pageSize, int currentPage) where T : new()
        {
            PagerModel pagerModel = new PagerModel(currentPage, pageSize);

            using (DbConnection connection = GetConnection())
            {
                connection.Open();
                IDbCommand cmd = null;
                StringBuilder sb = new StringBuilder();
                string commandText = null;
                int startRow = 0;
                int endRow = 0;
                switch (m_DBType)
                {
                    case "oracle":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);
                        endRow = startRow + pageSize;

                        sb.Append("select * from ( select row_limit.*, rownum rownum_ from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.Append(" ) row_limit where rownum <= ");
                        sb.Append(endRow);
                        sb.Append(" ) where rownum_ >");
                        sb.Append(startRow);
                        #endregion
                        break;
                    case "mssql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1) + 1;
                        endRow = startRow + pageSize - 1;

                        sb.Append(string.Format(@"
                            select * from 
                            (select ROW_NUMBER() over({1}) as rowNumber, t.* from ({0}) t) tempTable
                            where rowNumber between {2} and {3} ", sql, orderby, startRow, endRow));
                        #endregion
                        break;
                    case "mysql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append("select * from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" ) row_limit limit {0},{1}", startRow, pageSize);
                        #endregion
                        break;
                    case "sqlite":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" limit {0} offset {1}", pageSize, startRow);
                        #endregion
                        break;
                }

                List<T> list = FindListBySql<T>(sb.ToString());
                pagerModel.result = list;
            }

            return pagerModel;
        }
        #endregion

        #region 分页获取列表
        /// <summary>
        /// 分页(任意entity,尽量少的字段)
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="sql"></param>
        /// <returns></returns>
        public static PagerModel FindPageBySql<T>(string sql, string orderby, int pageSize, int currentPage, params DbParameter[] cmdParms) where T : new()
        {
            PagerModel pagerModel = new PagerModel(currentPage, pageSize);

            using (DbConnection connection = GetConnection())
            {
                connection.Open();
                IDbCommand cmd = null;
                StringBuilder sb = new StringBuilder();
                string commandText = null;
                int startRow = 0;
                int endRow = 0;
                switch (m_DBType)
                {
                    case "oracle":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);
                        endRow = startRow + pageSize;

                        sb.Append("select * from ( select row_limit.*, rownum rownum_ from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.Append(" ) row_limit where rownum <= ");
                        sb.Append(endRow);
                        sb.Append(" ) where rownum_ >");
                        sb.Append(startRow);
                        #endregion
                        break;
                    case "mssql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1) + 1;
                        endRow = startRow + pageSize - 1;

                        sb.Append(string.Format(@"
                            select * from 
                            (select ROW_NUMBER() over({1}) as rowNumber, t.* from ({0}) t) tempTable
                            where rowNumber between {2} and {3} ", sql, orderby, startRow, endRow));
                        #endregion
                        break;
                    case "mysql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append("select * from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" ) row_limit limit {0},{1}", startRow, pageSize);
                        #endregion
                        break;
                    case "sqlite":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" limit {0} offset {1}", pageSize, startRow);
                        #endregion
                        break;
                }

                List<T> list = FindListBySql<T>(sb.ToString(), cmdParms);
                pagerModel.result = list;
            }

            return pagerModel;
        }


        #endregion

        #region 分页获取列表
        /// <summary>
        /// 分页(任意entity,尽量少的字段)
        /// </summary>
        public static DataSet FindPageBySql(string sql, string orderby, int pageSize, int currentPage, out int totalCount, params DbParameter[] cmdParms)
        {
            DataSet ds = null;

            using (DbConnection connection = GetConnection())
            {
                connection.Open();
                IDbCommand cmd = null;
                StringBuilder sb = new StringBuilder();
                string commandText = null;
                int startRow = 0;
                int endRow = 0;
                totalCount = 0;
                switch (m_DBType)
                {
                    case "oracle":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);
                        endRow = startRow + pageSize;

                        sb.Append("select * from ( select row_limit.*, rownum rownum_ from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.Append(" ) row_limit where rownum <= ");
                        sb.Append(endRow);
                        sb.Append(" ) where rownum_ >");
                        sb.Append(startRow);
                        #endregion
                        break;
                    case "mssql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1) + 1;
                        endRow = startRow + pageSize - 1;

                        sb.Append(string.Format(@"
                            select * from 
                            (select ROW_NUMBER() over({1}) as rowNumber, t.* from ({0}) t) tempTable
                            where rowNumber between {2} and {3} ", sql, orderby, startRow, endRow));
                        #endregion
                        break;
                    case "mysql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append("select * from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" ) row_limit limit {0},{1}", startRow, pageSize);
                        #endregion
                        break;
                    case "sqlite":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" limit {0} offset {1}", pageSize, startRow);
                        #endregion
                        break;
                }

                ds = Query(sql, cmdParms);
            }
            return ds;
        }
        #endregion

        #region getReaderValue 转换数据
        /// <summary>
        /// 转换数据
        /// </summary>
        private static Object getReaderValue(Object rdValue, Type ptype)
        {
            if (ptype == typeof(double))
                return Convert.ToDouble(rdValue);

            if (ptype == typeof(decimal))
                return Convert.ToDecimal(rdValue);

            if (ptype == typeof(int))
                return Convert.ToInt32(rdValue);

            if (ptype == typeof(long))
                return Convert.ToInt64(rdValue);

            if (ptype == typeof(DateTime))
                return Convert.ToDateTime(rdValue);

            if (ptype == typeof(Nullable<double>))
                return Convert.ToDouble(rdValue);

            if (ptype == typeof(Nullable<decimal>))
                return Convert.ToDecimal(rdValue);

            if (ptype == typeof(Nullable<int>))
                return Convert.ToInt32(rdValue);

            if (ptype == typeof(Nullable<long>))
                return Convert.ToInt64(rdValue);

            if (ptype == typeof(Nullable<DateTime>))
                return Convert.ToDateTime(rdValue);

            return rdValue;
        }
        #endregion

        #region 获取主键名称
        /// <summary>
        /// 获取主键名称
        /// </summary>
        public static string GetIdName(Type type)
        {
            PropertyInfo[] propertyInfoList = GetEntityProperties(type);
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(IsIdAttribute), false).Length > 0)
                {
                    return propertyInfo.Name;
                }
            }
            return "Id";
        }
        #endregion

        #region 获取主键值
        /// <summary>
        /// 获取主键名称
        /// </summary>
        public static object GetIdVal(object val)
        {
            string idName = GetIdName(val.GetType());
            if (!string.IsNullOrWhiteSpace(idName))
            {
                return val.GetType().GetProperty(idName).GetValue(val, null);
            }
            return 0;
        }
        #endregion

        #region 获取实体类属性
        /// <summary>
        /// 获取实体类属性
        /// </summary>
        private static PropertyInfo[] GetEntityProperties(Type type)
        {
            List<PropertyInfo> result = new List<PropertyInfo>();
            PropertyInfo[] propertyInfoList = type.GetProperties();
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(EdmRelationshipNavigationPropertyAttribute), false).Length == 0
                    && propertyInfo.GetCustomAttributes(typeof(BrowsableAttribute), false).Length == 0)
                {
                    result.Add(propertyInfo);
                }
            }
            return result.ToArray();
        }
        #endregion

        #region 获取基类
        /// <summary>
        /// 获取基类
        /// </summary>
        public static Type GetBaseType(Type type)
        {
            while (type.BaseType != null && type.BaseType.Name != typeof(Object).Name)
            {
                type = type.BaseType;
            }
            return type;
        }
        #endregion
        #endregion

        #region 事务
        #region 开始事务
        /// <summary>
        /// 开始事务
        /// </summary>
        public static void BeginTransaction()
        {
            DbConnection conn = GetConnection();
            if (conn.State != ConnectionState.Open) conn.Open();
            m_Tran = conn.BeginTransaction();
        }
        #endregion

        #region 提交事务
        /// <summary>
        /// 提交事务
        /// </summary>
        public static void CommitTransaction()
        {
            if (m_Tran == null) return; //防止重复提交
            DbConnection conn = m_Tran.Connection;
            try
            {
                m_Tran.Commit();
            }
            catch (Exception ex)
            {
                m_Tran.Rollback();
            }
            finally
            {
                if (conn.State == ConnectionState.Open) conn.Close();
                m_Tran.Dispose();
                m_Tran = null;
            }
        }
        #endregion

        #region 回滚事务(出错时调用该方法回滚)
        /// <summary>
        /// 回滚事务(出错时调用该方法回滚)
        /// </summary>
        public static void RollbackTransaction()
        {
            if (m_Tran == null) return; //防止重复回滚
            DbConnection conn = m_Tran.Connection;
            m_Tran.Rollback();
            if (conn.State == ConnectionState.Open) conn.Close();
        }
        #endregion
        #endregion
    }
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Data.Common;
using System.Data.Objects.DataClasses;
using System.Data.OracleClient;
using System.Data.SqlClient;
using System.Data.SQLite;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using Models;
using MySql.Data.MySqlClient;

/* ---------------------------------------------
 * 作    者:suxiang
 * 创建日期:2016年11月23日
 * --------------------------------------------- */

namespace DBUtil
{
    /// <summary>
    /// 数据库操作类
    /// </summary>
    public static class DBHelper
    {
        #region 变量
        /// <summary>
        /// 数据库类型
        /// </summary>
        private static string m_DBType = ConfigurationManager.AppSettings["DBType"];
        /// <summary>
        /// 数据库类型
        /// </summary>
        private static bool m_AutoIncrement = ConfigurationManager.AppSettings["AutoIncrement"].ToLower() == "true" ? true : false;
        /// <summary>
        /// 数据库连接字符串
        /// </summary>
        private static string m_ConnectionString = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString();
        /// <summary>
        /// 事务
        /// </summary>
        [ThreadStatic]
        private static DbTransaction m_Tran;
        /// <summary>
        /// 带参数的SQL插入和修改语句中,参数前面的符号
        /// </summary>
        private static string m_ParameterMark = GetParameterMark();
        #endregion

        #region 生成变量
        #region 生成 IDbCommand
        /// <summary>
        /// 生成 IDbCommand
        /// </summary>
        private static DbCommand GetCommand()
        {
            DbCommand command = null;

            switch (m_DBType)
            {
                case "oracle":
                    command = new OracleCommand();
                    break;
                case "mssql":
                    command = new SqlCommand();
                    break;
                case "mysql":
                    command = new MySqlCommand();
                    break;
                case "sqlite":
                    command = new SQLiteCommand();
                    break;
            }

            return command;
        }
        /// <summary>
        /// 生成 IDbCommand
        /// </summary>
        private static DbCommand GetCommand(string sql, DbConnection conn)
        {
            DbCommand command = null;

            switch (m_DBType)
            {
                case "oracle":
                    command = new OracleCommand(sql);
                    command.Connection = conn;
                    break;
                case "mssql":
                    command = new SqlCommand(sql);
                    command.Connection = conn;
                    break;
                case "mysql":
                    command = new MySqlCommand(sql);
                    command.Connection = conn;
                    break;
                case "sqlite":
                    command = new SQLiteCommand(sql);
                    command.Connection = conn;
                    break;
            }

            return command;
        }
        #endregion

        #region 生成 IDbConnection
        /// <summary>
        /// 生成 IDbConnection
        /// </summary>
        private static DbConnection GetConnection()
        {
            DbConnection conn = null;

            switch (m_DBType)
            {
                case "oracle":
                    conn = new OracleConnection(m_ConnectionString);
                    break;
                case "mssql":
                    conn = new SqlConnection(m_ConnectionString);
                    break;
                case "mysql":
                    conn = new MySqlConnection(m_ConnectionString);
                    break;
                case "sqlite":
                    conn = new SQLiteConnection(m_ConnectionString);
                    break;
            }

            return conn;
        }
        #endregion

        #region 生成 IDbDataAdapter
        /// <summary>
        /// 生成 IDbDataAdapter
        /// </summary>
        private static DbDataAdapter GetDataAdapter(DbCommand cmd)
        {
            DbDataAdapter dataAdapter = null;

            switch (m_DBType)
            {
                case "oracle":
                    dataAdapter = new OracleDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
                case "mssql":
                    dataAdapter = new SqlDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
                case "mysql":
                    dataAdapter = new MySqlDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
                case "sqlite":
                    dataAdapter = new SQLiteDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
            }

            return dataAdapter;
        }
        #endregion

        #region 生成 m_ParameterMark
        /// <summary>
        /// 生成 m_ParameterMark
        /// </summary>
        private static string GetParameterMark()
        {
            switch (m_DBType)
            {
                case "oracle":
                    return ":";
                case "mssql":
                    return "@";
                case "mysql":
                    return "@";
                case "sqlite":
                    return ":";
            }
            return ":";
        }
        #endregion

        #region 生成 DbParameter
        /// <summary>
        /// 生成 DbParameter
        /// </summary>
        private static DbParameter GetDbParameter(string name, object vallue)
        {
            DbParameter dbParameter = null;

            switch (m_DBType)
            {
                case "oracle":
                    dbParameter = new OracleParameter(name, vallue);
                    break;
                case "mssql":
                    dbParameter = new SqlParameter(name, vallue);
                    break;
                case "mysql":
                    dbParameter = new MySqlParameter(name, vallue);
                    break;
                case "sqlite":
                    dbParameter = new SQLiteParameter(name, vallue);
                    break;
            }

            return dbParameter;
        }
        #endregion
        #endregion

        #region 基础方法
        #region  执行简单SQL语句
        #region Exists
        public static bool Exists(string sqlString)
        {
            SqlFilter(ref sqlString);
            using (DbConnection conn = GetConnection())
            {
                using (DbCommand cmd = GetCommand(sqlString, conn))
                {
                    try
                    {
                        conn.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return false;
                        }
                        else
                        {
                            return true;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                    finally
                    {
                        cmd.Dispose();
                        conn.Close();
                    }
                }
            }
        }
        #endregion

        #region 执行SQL语句,返回影响的记录数
        /// <summary>
        /// 执行SQL语句,返回影响的记录数
        /// </summary>
        /// <param name="sqlString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(string sqlString)
        {
            SqlFilter(ref sqlString);
            DbConnection conn = m_Tran == null ? GetConnection() : m_Tran.Connection;
            using (DbCommand cmd = GetCommand(sqlString, conn))
            {
                try
                {
                    if (conn.State != ConnectionState.Open) conn.Open();
                    if (m_Tran != null) cmd.Transaction = m_Tran;
                    int rows = cmd.ExecuteNonQuery();
                    return rows;
                }
                catch (Exception ex)
                {
                    throw new Exception(ex.Message);
                }
                finally
                {
                    cmd.Dispose();
                    if (m_Tran == null) conn.Close();
                }
            }
        }
        #endregion

        #region 执行一条计算查询结果语句,返回查询结果
        /// <summary>
        /// 执行一条计算查询结果语句,返回查询结果(object)
        /// </summary>
        /// <param name="sqlString">计算查询结果语句</param>
        /// <returns>查询结果(object)</returns>
        public static object GetSingle(string sqlString)
        {
            SqlFilter(ref sqlString);
            using (DbConnection conn = GetConnection())
            {
                using (DbCommand cmd = GetCommand(sqlString, conn))
                {
                    try
                    {
                        if (conn.State != ConnectionState.Open) conn.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return null;
                        }
                        else
                        {
                            return obj;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                    finally
                    {
                        cmd.Dispose();
                    }
                }
            }
        }
        #endregion

        #region 执行查询语句,返回IDataReader
        /// <summary>
        /// 执行查询语句,返回IDataReader ( 注意:调用该方法后,一定要对IDataReader进行Close )
        /// </summary>
        /// <param name="sqlString">查询语句</param>
        /// <returns>IDataReader</returns>
        public static DbDataReader ExecuteReader(string sqlString)
        {
            SqlFilter(ref sqlString);
            DbConnection conn = GetConnection();
            DbCommand cmd = GetCommand(sqlString, conn);
            try
            {
                if (conn.State != ConnectionState.Open) conn.Open();
                DbDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                return myReader;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion

        #region 执行查询语句,返回DataSet
        /// <summary>
        /// 执行查询语句,返回DataSet
        /// </summary>
        /// <param name="sqlString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(string sqlString)
        {
            SqlFilter(ref sqlString);
            using (DbConnection conn = GetConnection())
            {
                DataSet ds = new DataSet();
                try
                {
                    conn.Open();
                    using (DbCommand cmd = GetCommand(sqlString, conn))
                    {
                        DbDataAdapter adapter = GetDataAdapter(cmd);
                        adapter.Fill(ds, "ds");
                    }
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    conn.Close();
                }
                return ds;
            }
        }
        #endregion

        #region SQL过滤,防注入
        /// <summary>
        /// SQL过滤,防注入
        /// </summary>
        /// <param name="sql">sql</param>
        public static void SqlFilter(ref string sql)
        {
            sql = sql.Trim();
            List<string> keywordList = new List<string>() { 
                "net localgroup",
                "net user",
                "xp_cmdshell",
                "exec",
                "execute",
                "truncate",
                "drop",
                "restore",
                "create",
                "alter",
                "rename",
                "insert",
                "update",
                "delete",
                "select"};
            string ignore = string.Empty;
            string upperSql = sql.ToUpper();
            foreach (string keyword in keywordList)
            {
                if (upperSql.IndexOf(keyword.ToUpper()) == 0)
                {
                    ignore = keyword;
                }
            }
            foreach (string keyword in keywordList)
            {
                if (ignore == "select" && ignore == keyword) continue;
                Regex regex = new Regex(keyword, RegexOptions.IgnoreCase);
                sql = sql.Substring(0, ignore.Length) + regex.Replace(sql.Substring(ignore.Length), string.Empty);
            }
        }
        #endregion
        #endregion

        #region 执行带参数的SQL语句
        #region 执行SQL语句,返回影响的记录数
        /// <summary>
        /// 执行SQL语句,返回影响的记录数
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(string SQLString, params DbParameter[] cmdParms)
        {
            DbConnection conn = m_Tran == null ? GetConnection() : m_Tran.Connection;
            using (DbCommand cmd = GetCommand())
            {
                try
                {
                    PrepareCommand(cmd, conn, m_Tran, SQLString, cmdParms);
                    int rows = cmd.ExecuteNonQuery();
                    cmd.Parameters.Clear();
                    return rows;
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    cmd.Dispose();
                    if (m_Tran == null) conn.Close();
                }
            }
        }
        #endregion

        #region 执行查询语句,返回IDataReader
        /// <summary>
        /// 执行查询语句,返回IDataReader ( 注意:调用该方法后,一定要对IDataReader进行Close )
        /// </summary>
        /// <param name="strSQL">查询语句</param>
        /// <returns>IDataReader</returns>
        public static DbDataReader ExecuteReader(string sqlString, params DbParameter[] cmdParms)
        {
            DbConnection conn = GetConnection();
            DbCommand cmd = GetCommand();
            try
            {
                PrepareCommand(cmd, conn, null, sqlString, cmdParms);
                DbDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                cmd.Parameters.Clear();
                return myReader;
            }
            catch (Exception ex)
            {
                throw ex;
            }

        }
        #endregion

        #region 执行查询语句,返回DataSet
        /// <summary>
        /// 执行查询语句,返回DataSet
        /// </summary>
        /// <param name="sqlString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(string sqlString, params DbParameter[] cmdParms)
        {
            DbConnection conn = GetConnection();
            DbCommand cmd = GetCommand();
            PrepareCommand(cmd, conn, null, sqlString, cmdParms);
            using (DbDataAdapter da = GetDataAdapter(cmd))
            {
                DataSet ds = new DataSet();
                try
                {
                    da.Fill(ds, "ds");
                    cmd.Parameters.Clear();
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    cmd.Dispose();
                    conn.Close();
                }
                return ds;
            }
        }
        #endregion

        #region PrepareCommand
        private static void PrepareCommand(DbCommand cmd, DbConnection conn, DbTransaction trans, string cmdText, DbParameter[] cmdParms)
        {
            if (conn.State != ConnectionState.Open) conn.Open();
            cmd.Connection = conn;
            cmd.CommandText = cmdText;
            if (trans != null) cmd.Transaction = trans;
            cmd.CommandType = CommandType.Text;
            if (cmdParms != null)
            {
                foreach (DbParameter parm in cmdParms)
                {
                    cmd.Parameters.Add(parm);
                }
            }
        }
        #endregion
        #endregion
        #endregion

        #region 增删改查
        #region 获取最大编号
        /// <summary>
        /// 获取最大编号
        /// </summary>
        /// <typeparam name="T">实体Model</typeparam>
        /// <param name="key">主键</param>
        public static int GetMaxID<T>(string key)
        {
            Type type = typeof(T);

            string sql = null;
            switch (m_DBType)
            {
                case "oracle":
                    sql = string.Format("SELECT Max({0}) FROM {1}", key, type.Name);
                    break;
                case "mssql":
                    sql = string.Format("SELECT Max({0}) FROM {1}", key, type.Name);
                    break;
                case "mysql":
                    sql = string.Format("SELECT Max({0}) FROM {1}", key, type.Name);
                    break;
                case "sqlite":
                    sql = string.Format("SELECT Max(cast({0} as int)) FROM {1}", key, type.Name);
                    break;
            }

            using (DbConnection conn = GetConnection())
            {
                using (IDbCommand cmd = GetCommand(sql, conn))
                {
                    try
                    {
                        conn.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return 1;
                        }
                        else
                        {
                            return int.Parse(obj.ToString()) + 1;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                    finally
                    {
                        cmd.Dispose();
                        conn.Close();
                    }
                }
            }
        }
        #endregion

        #region 添加
        /// <summary>
        /// 添加
        /// </summary>
        public static void Insert(object obj)
        {
            Insert(obj, m_AutoIncrement);
        }
        /// <summary>
        /// 添加
        /// </summary>
        public static void Insert(object obj, bool autoIncrement)
        {
            StringBuilder strSql = new StringBuilder();
            Type type = obj.GetType();
            strSql.Append(string.Format("insert into {0}(", type.Name));

            PropertyInfo[] propertyInfoList = GetEntityProperties(type);
            List<string> propertyNameList = new List<string>();
            int savedCount = 0;
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(IsIdAttribute), false).Length > 0 && autoIncrement) return;
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    propertyNameList.Add(propertyInfo.Name);
                    savedCount++;
                }
            }

            strSql.Append(string.Format("{0})", string.Join(",", propertyNameList.ToArray())));
            strSql.Append(string.Format(" values ({0})", string.Join(",", propertyNameList.ConvertAll<string>(a => m_ParameterMark + a).ToArray())));
            DbParameter[] parameters = new DbParameter[savedCount];
            int k = 0;
            for (int i = 0; i < propertyInfoList.Length && savedCount > 0; i++)
            {
                PropertyInfo propertyInfo = propertyInfoList[i];
                if (propertyInfo.GetCustomAttributes(typeof(IsIdAttribute), false).Length > 0 && autoIncrement) return;
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    object val = propertyInfo.GetValue(obj, null);
                    DbParameter param = GetDbParameter(m_ParameterMark + propertyInfo.Name, val == null ? DBNull.Value : val);
                    parameters[k++] = param;
                }
            }

            ExecuteSql(strSql.ToString(), parameters);
        }
        #endregion

        #region 修改
        /// <summary>
        /// 修改
        /// </summary>
        public static void Update(object obj)
        {
            object oldObj = Find(obj, false);
            if (oldObj == null) throw new Exception("无法获取到旧数据");

            StringBuilder strSql = new StringBuilder();
            Type type = obj.GetType();
            strSql.Append(string.Format("update {0} ", type.Name));

            PropertyInfo[] propertyInfoList = GetEntityProperties(type);
            List<string> propertyNameList = new List<string>();
            int savedCount = 0;
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    object oldVal = propertyInfo.GetValue(oldObj, null);
                    object val = propertyInfo.GetValue(obj, null);
                    if (!object.Equals(oldVal, val))
                    {
                        propertyNameList.Add(propertyInfo.Name);
                        savedCount++;
                    }
                }
            }

            strSql.Append(string.Format(" set "));
            DbParameter[] parameters = new DbParameter[savedCount];
            StringBuilder sbPros = new StringBuilder();
            int k = 0;
            for (int i = 0; i < propertyInfoList.Length && savedCount > 0; i++)
            {
                PropertyInfo propertyInfo = propertyInfoList[i];
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    object oldVal = propertyInfo.GetValue(oldObj, null);
                    object val = propertyInfo.GetValue(obj, null);
                    if (!object.Equals(oldVal, val))
                    {
                        sbPros.Append(string.Format(" {0}={1}{0},", propertyInfo.Name, m_ParameterMark));
                        DbParameter param = GetDbParameter(m_ParameterMark + propertyInfo.Name, val == null ? DBNull.Value : val);
                        parameters[k++] = param;
                    }
                }
            }
            if (sbPros.Length > 0)
            {
                strSql.Append(sbPros.ToString(0, sbPros.Length - 1));
            }
            strSql.Append(string.Format(" where {0}='{1}'", GetIdName(obj.GetType()), GetIdVal(obj).ToString()));

            if (savedCount > 0)
            {
                ExecuteSql(strSql.ToString(), parameters);
            }
        }
        #endregion

        #region 删除
        /// <summary>
        /// 根据Id删除
        /// </summary>
        public static void Delete<T>(int id)
        {
            Type type = typeof(T);
            StringBuilder sbSql = new StringBuilder();
            DbParameter[] cmdParms = new DbParameter[1];
            cmdParms[0] = GetDbParameter(m_ParameterMark + GetIdName(type), id);
            sbSql.Append(string.Format("delete from {0} where {2}={1}{2}", type.Name, m_ParameterMark, GetIdName(type)));

            ExecuteSql(sbSql.ToString(), cmdParms);
        }
        /// <summary>
        /// 根据Id集合删除
        /// </summary>
        public static void BatchDelete<T>(string ids)
        {
            if (string.IsNullOrWhiteSpace(ids)) return;

            Type type = typeof(T);
            StringBuilder sbSql = new StringBuilder();
            string[] idArr = ids.Split(',');
            DbParameter[] cmdParms = new DbParameter[idArr.Length];
            sbSql.AppendFormat("delete from {0} where {1} in (", type.Name, GetIdName(type));
            for (int i = 0; i < idArr.Length; i++)
            {
                cmdParms[i] = GetDbParameter(m_ParameterMark + GetIdName(type) + i, idArr[i]);
                sbSql.AppendFormat("{1}{2}{3},", type.Name, m_ParameterMark, GetIdName(type), i);
            }
            sbSql.Remove(sbSql.Length - 1, 1);
            sbSql.Append(")");

            ExecuteSql(sbSql.ToString(), cmdParms);
        }
        /// <summary>
        /// 根据条件删除
        /// </summary>
        public static void Delete<T>(string conditions)
        {
            if (string.IsNullOrWhiteSpace(conditions)) return;

            Type type = typeof(T);
            StringBuilder sbSql = new StringBuilder();
            SqlFilter(ref conditions);
            sbSql.Append(string.Format("delete from {0} where {1}", type.Name, conditions));

            ExecuteSql(sbSql.ToString());
        }
        #endregion

        #region 获取实体
        #region 根据实体获取实体
        /// <summary>
        /// 根据实体获取实体
        /// </summary>
        private static object Find(object obj, bool readCache = true)
        {
            Type type = obj.GetType();

            object result = Activator.CreateInstance(type);
            bool hasValue = false;
            IDataReader rd = null;

            string sql = string.Format("select * from {0} where {2}='{1}'", type.Name, GetIdVal(obj), GetIdName(obj.GetType()));

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return null;
            }
        }
        #endregion

        #region 根据Id获取实体
        /// <summary>
        /// 根据Id获取实体
        /// </summary>
        private static object FindById(Type type, int id)
        {
            object result = Activator.CreateInstance(type);
            IDataReader rd = null;
            bool hasValue = false;

            string sql = string.Format("select * from {0} where {2}='{1}'", type.Name, id, GetIdName(type));

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return null;
            }
        }
        #endregion

        #region 根据Id获取实体
        /// <summary>
        /// 根据Id获取实体
        /// </summary>
        public static T FindById<T>(string id) where T : new()
        {
            Type type = typeof(T);
            T result = (T)Activator.CreateInstance(type);
            IDataReader rd = null;
            bool hasValue = false;

            string sql = string.Format("select * from {0} where {2}='{1}'", type.Name, id, GetIdName(type));

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return default(T);
            }
        }
        #endregion

        #region 根据sql获取实体
        /// <summary>
        /// 根据sql获取实体
        /// </summary>
        public static T FindBySql<T>(string sql) where T : new()
        {
            Type type = typeof(T);
            T result = (T)Activator.CreateInstance(type);
            IDataReader rd = null;
            bool hasValue = false;

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return default(T);
            }
        }
        #endregion
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        public static List<T> FindListBySql<T>(string sql) where T : new()
        {
            List<T> list = new List<T>();
            object obj;
            IDataReader rd = null;

            try
            {
                rd = ExecuteReader(sql);

                if (typeof(T) == typeof(int))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else if (typeof(T) == typeof(string))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else
                {
                    PropertyInfo[] propertyInfoList = (typeof(T)).GetProperties();

                    int fcnt = rd.FieldCount;
                    List<string> fileds = new List<string>();
                    for (int i = 0; i < fcnt; i++)
                    {
                        fileds.Add(rd.GetName(i).ToUpper());
                    }

                    while (rd.Read())
                    {
                        IDataRecord record = rd;
                        obj = new T();


                        foreach (PropertyInfo pro in propertyInfoList)
                        {
                            if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                            {
                                continue;
                            }

                            pro.SetValue(obj, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                        }
                        list.Add((T)obj);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            return list;
        }
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        public static List<T> FindListBySql<T>(string sql, params DbParameter[] cmdParms) where T : new()
        {
            List<T> list = new List<T>();
            object obj;
            IDataReader rd = null;

            try
            {
                rd = ExecuteReader(sql, cmdParms);

                if (typeof(T) == typeof(int))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else if (typeof(T) == typeof(string))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else
                {
                    PropertyInfo[] propertyInfoList = (typeof(T)).GetProperties();

                    int fcnt = rd.FieldCount;
                    List<string> fileds = new List<string>();
                    for (int i = 0; i < fcnt; i++)
                    {
                        fileds.Add(rd.GetName(i).ToUpper());
                    }

                    while (rd.Read())
                    {
                        IDataRecord record = rd;
                        obj = new T();


                        foreach (PropertyInfo pro in propertyInfoList)
                        {
                            if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                            {
                                continue;
                            }

                            pro.SetValue(obj, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                        }
                        list.Add((T)obj);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            return list;
        }
        #endregion

        #region 分页获取列表
        /// <summary>
        /// 分页(任意entity,尽量少的字段)
        /// </summary>
        public static PagerModel FindPageBySql<T>(string sql, string orderby, int pageSize, int currentPage) where T : new()
        {
            PagerModel pagerModel = new PagerModel(currentPage, pageSize);

            using (DbConnection connection = GetConnection())
            {
                connection.Open();
                IDbCommand cmd = null;
                StringBuilder sb = new StringBuilder();
                string commandText = null;
                int startRow = 0;
                int endRow = 0;
                switch (m_DBType)
                {
                    case "oracle":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);
                        endRow = startRow + pageSize;

                        sb.Append("select * from ( select row_limit.*, rownum rownum_ from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.Append(" ) row_limit where rownum <= ");
                        sb.Append(endRow);
                        sb.Append(" ) where rownum_ >");
                        sb.Append(startRow);
                        #endregion
                        break;
                    case "mssql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1) + 1;
                        endRow = startRow + pageSize - 1;

                        sb.Append(string.Format(@"
                            select * from 
                            (select ROW_NUMBER() over({1}) as rowNumber, t.* from ({0}) t) tempTable
                            where rowNumber between {2} and {3} ", sql, orderby, startRow, endRow));
                        #endregion
                        break;
                    case "mysql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append("select * from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" ) row_limit limit {0},{1}", startRow, pageSize);
                        #endregion
                        break;
                    case "sqlite":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" limit {0} offset {1}", pageSize, startRow);
                        #endregion
                        break;
                }

                List<T> list = FindListBySql<T>(sb.ToString());
                pagerModel.result = list;
            }

            return pagerModel;
        }
        #endregion

        #region 分页获取列表
        /// <summary>
        /// 分页(任意entity,尽量少的字段)
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="sql"></param>
        /// <returns></returns>
        public static PagerModel FindPageBySql<T>(string sql, string orderby, int pageSize, int currentPage, params DbParameter[] cmdParms) where T : new()
        {
            PagerModel pagerModel = new PagerModel(currentPage, pageSize);

            using (DbConnection connection = GetConnection())
            {
                connection.Open();
                IDbCommand cmd = null;
                StringBuilder sb = new StringBuilder();
                string commandText = null;
                int startRow = 0;
                int endRow = 0;
                switch (m_DBType)
                {
                    case "oracle":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);
                        endRow = startRow + pageSize;

                        sb.Append("select * from ( select row_limit.*, rownum rownum_ from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.Append(" ) row_limit where rownum <= ");
                        sb.Append(endRow);
                        sb.Append(" ) where rownum_ >");
                        sb.Append(startRow);
                        #endregion
                        break;
                    case "mssql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1) + 1;
                        endRow = startRow + pageSize - 1;

                        sb.Append(string.Format(@"
                            select * from 
                            (select ROW_NUMBER() over({1}) as rowNumber, t.* from ({0}) t) tempTable
                            where rowNumber between {2} and {3} ", sql, orderby, startRow, endRow));
                        #endregion
                        break;
                    case "mysql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append("select * from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" ) row_limit limit {0},{1}", startRow, pageSize);
                        #endregion
                        break;
                    case "sqlite":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" limit {0} offset {1}", pageSize, startRow);
                        #endregion
                        break;
                }

                List<T> list = FindListBySql<T>(sb.ToString(), cmdParms);
                pagerModel.result = list;
            }

            return pagerModel;
        }


        #endregion

        #region 分页获取列表
        /// <summary>
        /// 分页(任意entity,尽量少的字段)
        /// </summary>
        public static DataSet FindPageBySql(string sql, string orderby, int pageSize, int currentPage, out int totalCount, params DbParameter[] cmdParms)
        {
            DataSet ds = null;

            using (DbConnection connection = GetConnection())
            {
                connection.Open();
                IDbCommand cmd = null;
                StringBuilder sb = new StringBuilder();
                string commandText = null;
                int startRow = 0;
                int endRow = 0;
                totalCount = 0;
                switch (m_DBType)
                {
                    case "oracle":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);
                        endRow = startRow + pageSize;

                        sb.Append("select * from ( select row_limit.*, rownum rownum_ from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.Append(" ) row_limit where rownum <= ");
                        sb.Append(endRow);
                        sb.Append(" ) where rownum_ >");
                        sb.Append(startRow);
                        #endregion
                        break;
                    case "mssql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1) + 1;
                        endRow = startRow + pageSize - 1;

                        sb.Append(string.Format(@"
                            select * from 
                            (select ROW_NUMBER() over({1}) as rowNumber, t.* from ({0}) t) tempTable
                            where rowNumber between {2} and {3} ", sql, orderby, startRow, endRow));
                        #endregion
                        break;
                    case "mysql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append("select * from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" ) row_limit limit {0},{1}", startRow, pageSize);
                        #endregion
                        break;
                    case "sqlite":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        foreach (DbParameter parm in cmdParms) cmd.Parameters.Add(parm);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" limit {0} offset {1}", pageSize, startRow);
                        #endregion
                        break;
                }

                ds = Query(sql, cmdParms);
            }
            return ds;
        }
        #endregion

        #region getReaderValue 转换数据
        /// <summary>
        /// 转换数据
        /// </summary>
        private static Object getReaderValue(Object rdValue, Type ptype)
        {
            if (ptype == typeof(double))
                return Convert.ToDouble(rdValue);

            if (ptype == typeof(decimal))
                return Convert.ToDecimal(rdValue);

            if (ptype == typeof(int))
                return Convert.ToInt32(rdValue);

            if (ptype == typeof(long))
                return Convert.ToInt64(rdValue);

            if (ptype == typeof(DateTime))
                return Convert.ToDateTime(rdValue);

            if (ptype == typeof(Nullable<double>))
                return Convert.ToDouble(rdValue);

            if (ptype == typeof(Nullable<decimal>))
                return Convert.ToDecimal(rdValue);

            if (ptype == typeof(Nullable<int>))
                return Convert.ToInt32(rdValue);

            if (ptype == typeof(Nullable<long>))
                return Convert.ToInt64(rdValue);

            if (ptype == typeof(Nullable<DateTime>))
                return Convert.ToDateTime(rdValue);

            return rdValue;
        }
        #endregion

        #region 获取主键名称
        /// <summary>
        /// 获取主键名称
        /// </summary>
        public static string GetIdName(Type type)
        {
            PropertyInfo[] propertyInfoList = GetEntityProperties(type);
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(IsIdAttribute), false).Length > 0)
                {
                    return propertyInfo.Name;
                }
            }
            return "Id";
        }
        #endregion

        #region 获取主键值
        /// <summary>
        /// 获取主键名称
        /// </summary>
        public static object GetIdVal(object val)
        {
            string idName = GetIdName(val.GetType());
            if (!string.IsNullOrWhiteSpace(idName))
            {
                return val.GetType().GetProperty(idName).GetValue(val, null);
            }
            return 0;
        }
        #endregion

        #region 获取实体类属性
        /// <summary>
        /// 获取实体类属性
        /// </summary>
        private static PropertyInfo[] GetEntityProperties(Type type)
        {
            List<PropertyInfo> result = new List<PropertyInfo>();
            PropertyInfo[] propertyInfoList = type.GetProperties();
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(EdmRelationshipNavigationPropertyAttribute), false).Length == 0
                    && propertyInfo.GetCustomAttributes(typeof(BrowsableAttribute), false).Length == 0)
                {
                    result.Add(propertyInfo);
                }
            }
            return result.ToArray();
        }
        #endregion

        #region 获取基类
        /// <summary>
        /// 获取基类
        /// </summary>
        public static Type GetBaseType(Type type)
        {
            while (type.BaseType != null && type.BaseType.Name != typeof(Object).Name)
            {
                type = type.BaseType;
            }
            return type;
        }
        #endregion
        #endregion

        #region 事务
        #region 开始事务
        /// <summary>
        /// 开始事务
        /// </summary>
        public static void BeginTransaction()
        {
            DbConnection conn = GetConnection();
            if (conn.State != ConnectionState.Open) conn.Open();
            m_Tran = conn.BeginTransaction();
        }
        #endregion

        #region 提交事务
        /// <summary>
        /// 提交事务
        /// </summary>
        public static void CommitTransaction()
        {
            if (m_Tran == null) return; //防止重复提交
            DbConnection conn = m_Tran.Connection;
            try
            {
                m_Tran.Commit();
            }
            catch (Exception ex)
            {
                m_Tran.Rollback();
            }
            finally
            {
                if (conn.State == ConnectionState.Open) conn.Close();
                m_Tran.Dispose();
                m_Tran = null;
            }
        }
        #endregion

        #region 回滚事务(出错时调用该方法回滚)
        /// <summary>
        /// 回滚事务(出错时调用该方法回滚)
        /// </summary>
        public static void RollbackTransaction()
        {
            if (m_Tran == null) return; //防止重复回滚
            DbConnection conn = m_Tran.Connection;
            m_Tran.Rollback();
            if (conn.State == ConnectionState.Open) conn.Close();
        }
        #endregion
        #endregion
    }
}

   
Models目录中的类及其性质和数据库中的表和字段是一心对应的,Models全体由生成器生成,并且不允许手动修改。ExtModels目录中的类是扩展类,首要用来查询与展现,举个例子表中存的是code,但你要求关联合检查询另一张表中的name,就足以在这一个扩充类中扩展学一年级个用来展现的name字段。Models和ExtModels目录的中类都以partial修饰。

   
Models目录中的类及其性质和数据库中的表和字段是一点一滴对应的,Models全部由生成器生成,并且区别意手动修改。ExtModels目录中的类是扩充类,首要用于查询与展现,比方表中存的是code,但你必要关联合检查询另一张表中的name,就足以在这些扩张类中扩展二个用于显示的name字段。Models和ExtModels目录的中类都是partial修饰。

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例(由于是SQLite数据库,所以生成的Model未有注释,其它三种数据库有注释):

   
例(由于是SQLite数据库,所以生成的Model未有注释,其余二种数据库有注释):

轻量级OCRUISERM。证实:DBHelper中对作业变量private static
DbTransaction
m_Tran使用了[ThreadStatic]标签,以帮衬多用户并发;可是倘假诺单个用户使用十贰线程并发请求服务器,恐怕这种措施的数据库事务是不援助的,可是貌似项目并未有这种需求,固然有请使用HttpContext.Current.Items改写或然别的措施改写。

注脚:DBHelper中对作业变量private static
DbTransaction
m_Tran使用了[ThreadStatic]标签,以支撑多用户并发;然则尽管是单个用户使用二十四线程并发请求服务器,只怕那种方式的数据库事务是不扶助的,可是貌似项目并未有那种需求,假使有请使用HttpContext.Current.Items改写或者此外方法改写。

Model:

Model:

Web.config配置:

Web.config配置:

金沙注册送58 7金沙注册送58 8

金沙注册送58 9金沙注册送58 10

金沙注册送58 11金沙注册送58 12

金沙注册送58 13金沙注册送58 14

using System;
using System.Collections.Generic;
using System.Linq;

namespace Models
{
    /// <summary>
    /// 
    /// </summary>
    [Serializable]
    public partial class BS_Template
    {
        /// <summary>
        /// 
        /// </summary>
        [IsId]
        [IsDBField]
        public string id { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string typeCode { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string type { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string code { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string name { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string path { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string folder { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string remarks { get; set; }
    }
}
using System;
using System.Collections.Generic;
using System.Linq;

namespace Models
{
    /// <summary>
    /// 
    /// </summary>
    [Serializable]
    public partial class BS_Template
    {
        /// <summary>
        /// 
        /// </summary>
        [IsId]
        [IsDBField]
        public string id { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string typeCode { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string type { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string code { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string name { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string path { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string folder { get; set; }
        /// <summary>
        /// 
        /// </summary>
        [IsDBField]
        public string remarks { get; set; }
    }
}
<connectionStrings>
  <add name="DefaultConnection"  connectionString="server=localhost;database=netcms3.0;user id=root;password=root;character set=gbk;" />
</connectionStrings>
<appSettings>
  <!--数据库类型-->
  <add key="DBType" value="mysql"/>
  <!--数据库自增-->
  <add key="AutoIncrement" value="false"/>
</appSettings>
<connectionStrings>
  <add name="DefaultConnection"  connectionString="server=localhost;database=netcms3.0;user id=root;password=root;character set=gbk;" />
</connectionStrings>
<appSettings>
  <!--数据库类型-->
  <add key="DBType" value="mysql"/>
  <!--数据库自增-->
  <add key="AutoIncrement" value="false"/>
</appSettings>

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ExtModel:

ExtModel:

注明:对于SQL Server数据库,通过<add
key=”AutoIncrement” value=”false”/>来安装是或不是采取数据库自增。

表达:对于SQL Server数据库,通过<add
key=”AutoIncrement” value=”false”/>来设置是或不是采用数据库自增。

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DBHelper类库要求引用的先后集:

DBHelper类库需求引用的次序集:

using System;
using System.Collections.Generic;
using System.Linq;

namespace Models
{
    /// <summary>
    /// 
    /// </summary>
    public partial class BS_Template
    {
        //暂没有扩展字段
    }
}
using System;
using System.Collections.Generic;
using System.Linq;

namespace Models
{
    /// <summary>
    /// 
    /// </summary>
    public partial class BS_Template
    {
        //暂没有扩展字段
    }
}

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View Code

View Code

除VS二〇一三自带的DLL外部须求要的DLL:

除VS2011自带的DLL外部须要要的DLL:

 

 

MySql.Data.dll

MySql.Data.dll

DBHelper代码:

DBHelper代码:

System.Data.SQLite.dll

System.Data.SQLite.dll

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中间Models类库如下:

里头Models类库如下:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Data.Common;
using System.Data.Objects.DataClasses;
using System.Data.OracleClient;
using System.Data.SqlClient;
using System.Data.SQLite;
using System.Reflection;
using System.Text;
using Models;
using MySql.Data.MySqlClient;

namespace DBUtil
{
    /// <summary>
    /// 数据库操作类
    /// 2016年09月09日
    /// </summary>
    public class DBHelper
    {
        #region 变量
        /// <summary>
        /// 数据库类型
        /// </summary>
        private static string m_DBType = ConfigurationManager.AppSettings["DBType"];
        /// <summary>
        /// 数据库类型
        /// </summary>
        private static bool m_AutoIncrement = ConfigurationManager.AppSettings["AutoIncrement"].ToLower() == "true" ? true : false;
        /// <summary>
        /// 数据库连接字符串
        /// </summary>
        private static string m_ConnectionString = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString();
        /// <summary>
        /// 事务
        /// </summary>
        [ThreadStatic]
        private static DbTransaction m_Tran;
        /// <summary>
        /// 带参数的SQL插入和修改语句中,参数前面的符号
        /// </summary>
        private static string m_ParameterMark = GetParameterMark();
        #endregion

        #region 构造函数
        /// <summary>
        /// 数据库操作类
        /// </summary>
        public DBHelper()
        {
        }
        #endregion

        #region 生成变量
        #region 生成 IDbCommand
        /// <summary>
        /// 生成 IDbCommand
        /// </summary>
        private DbCommand GetCommand()
        {
            DbCommand command = null;

            switch (m_DBType)
            {
                case "oracle":
                    command = new OracleCommand();
                    break;
                case "mssql":
                    command = new SqlCommand();
                    break;
                case "mysql":
                    command = new MySqlCommand();
                    break;
                case "sqlite":
                    command = new SQLiteCommand();
                    break;
            }

            return command;
        }
        /// <summary>
        /// 生成 IDbCommand
        /// </summary>
        private DbCommand GetCommand(string sql, DbConnection conn)
        {
            DbCommand command = null;

            switch (m_DBType)
            {
                case "oracle":
                    command = new OracleCommand(sql);
                    command.Connection = conn;
                    break;
                case "mssql":
                    command = new SqlCommand(sql);
                    command.Connection = conn;
                    break;
                case "mysql":
                    command = new MySqlCommand(sql);
                    command.Connection = conn;
                    break;
                case "sqlite":
                    command = new SQLiteCommand(sql);
                    command.Connection = conn;
                    break;
            }

            return command;
        }
        #endregion

        #region 生成 IDbConnection
        /// <summary>
        /// 生成 IDbConnection
        /// </summary>
        private static DbConnection GetConnection()
        {
            DbConnection conn = null;

            switch (m_DBType)
            {
                case "oracle":
                    conn = new OracleConnection(m_ConnectionString);
                    break;
                case "mssql":
                    conn = new SqlConnection(m_ConnectionString);
                    break;
                case "mysql":
                    conn = new MySqlConnection(m_ConnectionString);
                    break;
                case "sqlite":
                    conn = new SQLiteConnection(m_ConnectionString);
                    break;
            }

            return conn;
        }
        #endregion

        #region 生成 IDbDataAdapter
        /// <summary>
        /// 生成 IDbDataAdapter
        /// </summary>
        private DbDataAdapter GetDataAdapter(DbCommand cmd)
        {
            DbDataAdapter dataAdapter = null;

            switch (m_DBType)
            {
                case "oracle":
                    dataAdapter = new OracleDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
                case "mssql":
                    dataAdapter = new SqlDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
                case "mysql":
                    dataAdapter = new MySqlDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
                case "sqlite":
                    dataAdapter = new SQLiteDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
            }

            return dataAdapter;
        }
        #endregion

        #region 生成 m_ParameterMark
        /// <summary>
        /// 生成 m_ParameterMark
        /// </summary>
        private static string GetParameterMark()
        {
            switch (m_DBType)
            {
                case "oracle":
                    return ":";
                case "mssql":
                    return "@";
                case "mysql":
                    return "@";
                case "sqlite":
                    return ":";
            }
            return ":";
        }
        #endregion

        #region 生成 DbParameter
        /// <summary>
        /// 生成 DbParameter
        /// </summary>
        private DbParameter GetDbParameter(string name, object value)
        {
            DbParameter dbParameter = null;

            switch (m_DBType)
            {
                case "oracle":
                    dbParameter = new OracleParameter(name, value);
                    break;
                case "mssql":
                    dbParameter = new SqlParameter(name, value);
                    break;
                case "mysql":
                    dbParameter = new MySqlParameter(name, value);
                    break;
                case "sqlite":
                    dbParameter = new SQLiteParameter(name, value);
                    break;
            }

            return dbParameter;
        }
        #endregion
        #endregion

        #region 基础方法
        #region  执行简单SQL语句
        #region Exists
        public bool Exists(string sqlString)
        {
            using (DbConnection conn = GetConnection())
            {
                using (DbCommand cmd = GetCommand(sqlString, conn))
                {
                    try
                    {
                        conn.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return false;
                        }
                        else
                        {
                            return true;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                    finally
                    {
                        cmd.Dispose();
                        conn.Close();
                    }
                }
            }
        }
        #endregion

        #region 执行SQL语句,返回影响的记录数
        /// <summary>
        /// 执行SQL语句,返回影响的记录数
        /// </summary>
        /// <param name="sqlString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public int ExecuteSql(string sqlString)
        {
            DbConnection conn = m_Tran == null ? GetConnection() : m_Tran.Connection;
            using (DbCommand cmd = GetCommand(sqlString, conn))
            {
                try
                {
                    if (conn.State != ConnectionState.Open) conn.Open();
                    if (m_Tran != null) cmd.Transaction = m_Tran;
                    int rows = cmd.ExecuteNonQuery();
                    return rows;
                }
                catch (Exception ex)
                {
                    throw new Exception(ex.Message);
                }
                finally
                {
                    cmd.Dispose();
                    if (m_Tran == null) conn.Close();
                }
            }
        }
        #endregion

        #region 执行一条计算查询结果语句,返回查询结果
        /// <summary>
        /// 执行一条计算查询结果语句,返回查询结果(object)
        /// </summary>
        /// <param name="sqlString">计算查询结果语句</param>
        /// <returns>查询结果(object)</returns>
        public object GetSingle(string sqlString)
        {
            using (DbConnection conn = GetConnection())
            {
                using (DbCommand cmd = GetCommand(sqlString, conn))
                {
                    try
                    {
                        if (conn.State != ConnectionState.Open) conn.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return null;
                        }
                        else
                        {
                            return obj;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                    finally
                    {
                        cmd.Dispose();
                    }
                }
            }
        }
        #endregion

        #region 执行查询语句,返回IDataReader
        /// <summary>
        /// 执行查询语句,返回IDataReader ( 注意:调用该方法后,一定要对IDataReader进行Close )
        /// </summary>
        /// <param name="sqlString">查询语句</param>
        /// <returns>IDataReader</returns>
        public DbDataReader ExecuteReader(string sqlString)
        {
            DbConnection conn = GetConnection();
            DbCommand cmd = GetCommand(sqlString, conn);
            try
            {
                if (conn.State != ConnectionState.Open) conn.Open();
                DbDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                return myReader;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion

        #region 执行查询语句,返回DataSet
        /// <summary>
        /// 执行查询语句,返回DataSet
        /// </summary>
        /// <param name="sqlString">查询语句</param>
        /// <returns>DataSet</returns>
        public DataSet Query(string sqlString)
        {
            using (DbConnection conn = GetConnection())
            {
                DataSet ds = new DataSet();
                try
                {
                    conn.Open();
                    using (DbCommand cmd = GetCommand(sqlString, conn))
                    {
                        DbDataAdapter adapter = GetDataAdapter(cmd);
                        adapter.Fill(ds, "ds");
                    }
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    conn.Close();
                }
                return ds;
            }
        }
        #endregion
        #endregion

        #region 执行带参数的SQL语句
        #region 执行SQL语句,返回影响的记录数
        /// <summary>
        /// 执行SQL语句,返回影响的记录数
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public int ExecuteSql(string SQLString, params DbParameter[] cmdParms)
        {
            DbConnection conn = m_Tran == null ? GetConnection() : m_Tran.Connection;
            using (DbCommand cmd = GetCommand())
            {
                try
                {
                    PrepareCommand(cmd, conn, m_Tran, SQLString, cmdParms);
                    int rows = cmd.ExecuteNonQuery();
                    cmd.Parameters.Clear();
                    return rows;
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    cmd.Dispose();
                    if (m_Tran == null) conn.Close();
                }
            }
        }
        #endregion

        #region 执行查询语句,返回IDataReader
        /// <summary>
        /// 执行查询语句,返回IDataReader ( 注意:调用该方法后,一定要对IDataReader进行Close )
        /// </summary>
        /// <param name="strSQL">查询语句</param>
        /// <returns>IDataReader</returns>
        public DbDataReader ExecuteReader(string sqlString, params DbParameter[] cmdParms)
        {
            DbConnection conn = GetConnection();
            DbCommand cmd = GetCommand();
            try
            {
                PrepareCommand(cmd, conn, null, sqlString, cmdParms);
                DbDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                cmd.Parameters.Clear();
                return myReader;
            }
            catch (Exception ex)
            {
                throw ex;
            }

        }
        #endregion

        #region 执行查询语句,返回DataSet
        /// <summary>
        /// 执行查询语句,返回DataSet
        /// </summary>
        /// <param name="sqlString">查询语句</param>
        /// <returns>DataSet</returns>
        public DataSet Query(string sqlString, params DbParameter[] cmdParms)
        {
            DbConnection conn = GetConnection();
            DbCommand cmd = GetCommand();
            PrepareCommand(cmd, conn, null, sqlString, cmdParms);
            using (DbDataAdapter da = GetDataAdapter(cmd))
            {
                DataSet ds = new DataSet();
                try
                {
                    da.Fill(ds, "ds");
                    cmd.Parameters.Clear();
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    cmd.Dispose();
                    conn.Close();
                }
                return ds;
            }
        }
        #endregion

        #region PrepareCommand
        private void PrepareCommand(DbCommand cmd, DbConnection conn, DbTransaction trans, string cmdText, DbParameter[] cmdParms)
        {
            if (conn.State != ConnectionState.Open) conn.Open();
            cmd.Connection = conn;
            cmd.CommandText = cmdText;
            if (trans != null) cmd.Transaction = trans;
            cmd.CommandType = CommandType.Text;
            if (cmdParms != null)
            {
                foreach (DbParameter parm in cmdParms)
                {
                    cmd.Parameters.Add(parm);
                }
            }
        }
        #endregion
        #endregion
        #endregion

        #region 增删改查
        #region 获取最大编号
        /// <summary>
        /// 获取最大编号
        /// </summary>
        /// <typeparam name="T">实体Model</typeparam>
        /// <param name="key">主键</param>
        public int GetMaxID<T>(string key)
        {
            Type type = typeof(T);

            string sql = null;
            switch (m_DBType)
            {
                case "oracle":
                    sql = string.Format("SELECT Max({0}) FROM {1}", key, type.Name);
                    break;
                case "mssql":
                    sql = string.Format("SELECT Max({0}) FROM {1}", key, type.Name);
                    break;
                case "mysql":
                    sql = string.Format("SELECT Max({0}) FROM {1}", key, type.Name);
                    break;
                case "sqlite":
                    sql = string.Format("SELECT Max(cast({0} as int)) FROM {1}", key, type.Name);
                    break;
            }

            using (DbConnection conn = GetConnection())
            {
                using (IDbCommand cmd = GetCommand(sql, conn))
                {
                    try
                    {
                        conn.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return 1;
                        }
                        else
                        {
                            return int.Parse(obj.ToString()) + 1;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                    finally
                    {
                        cmd.Dispose();
                        conn.Close();
                    }
                }
            }
        }
        #endregion

        #region 添加
        /// <summary>
        /// 添加
        /// </summary>
        public void Insert(object obj)
        {
            Insert(obj, m_AutoIncrement);
        }
        /// <summary>
        /// 添加
        /// </summary>
        public void Insert(object obj, bool autoIncrement)
        {
            StringBuilder strSql = new StringBuilder();
            Type type = obj.GetType();
            strSql.Append(string.Format("insert into {0}(", type.Name));

            PropertyInfo[] propertyInfoList = GetEntityProperties(type);
            List<string> propertyNameList = new List<string>();
            int savedCount = 0;
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(IsIdAttribute), false).Length > 0 && autoIncrement) return;
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    propertyNameList.Add(propertyInfo.Name);
                    savedCount++;
                }
            }

            strSql.Append(string.Format("{0})", string.Join(",", propertyNameList.ToArray())));
            strSql.Append(string.Format(" values ({0})", string.Join(",", propertyNameList.ConvertAll<string>(a => m_ParameterMark + a).ToArray())));
            DbParameter[] parameters = new DbParameter[savedCount];
            int k = 0;
            for (int i = 0; i < propertyInfoList.Length && savedCount > 0; i++)
            {
                PropertyInfo propertyInfo = propertyInfoList[i];
                if (propertyInfo.GetCustomAttributes(typeof(IsIdAttribute), false).Length > 0 && autoIncrement) return;
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    object val = propertyInfo.GetValue(obj, null);
                    DbParameter param = GetDbParameter(m_ParameterMark + propertyInfo.Name, val == null ? DBNull.Value : val);
                    parameters[k++] = param;
                }
            }

            ExecuteSql(strSql.ToString(), parameters);
        }
        #endregion

        #region 修改
        /// <summary>
        /// 修改
        /// </summary>
        public void Update(object obj)
        {
            object oldObj = Find(obj, false);
            if (oldObj == null) throw new Exception("无法获取到旧数据");

            StringBuilder strSql = new StringBuilder();
            Type type = obj.GetType();
            strSql.Append(string.Format("update {0} ", type.Name));

            PropertyInfo[] propertyInfoList = GetEntityProperties(type);
            List<string> propertyNameList = new List<string>();
            int savedCount = 0;
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    object oldVal = propertyInfo.GetValue(oldObj, null);
                    object val = propertyInfo.GetValue(obj, null);
                    if (!object.Equals(oldVal, val))
                    {
                        propertyNameList.Add(propertyInfo.Name);
                        savedCount++;
                    }
                }
            }

            strSql.Append(string.Format(" set "));
            DbParameter[] parameters = new DbParameter[savedCount];
            StringBuilder sbPros = new StringBuilder();
            int k = 0;
            for (int i = 0; i < propertyInfoList.Length && savedCount > 0; i++)
            {
                PropertyInfo propertyInfo = propertyInfoList[i];
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    object oldVal = propertyInfo.GetValue(oldObj, null);
                    object val = propertyInfo.GetValue(obj, null);
                    if (!object.Equals(oldVal, val))
                    {
                        sbPros.Append(string.Format(" {0}={1}{0},", propertyInfo.Name, m_ParameterMark));
                        DbParameter param = GetDbParameter(m_ParameterMark + propertyInfo.Name, val == null ? DBNull.Value : val);
                        parameters[k++] = param;
                    }
                }
            }
            if (sbPros.Length > 0)
            {
                strSql.Append(sbPros.ToString(0, sbPros.Length - 1));
            }
            strSql.Append(string.Format(" where {0}='{1}'", GetIdName(obj.GetType()), GetIdVal(obj).ToString()));

            if (savedCount > 0)
            {
                ExecuteSql(strSql.ToString(), parameters);
            }
        }
        #endregion

        #region 删除
        /// <summary>
        /// 根据Id删除
        /// </summary>
        public void Delete<T>(int id)
        {
            Type type = typeof(T);
            StringBuilder sbSql = new StringBuilder();
            sbSql.Append(string.Format("delete from {0} where {2}='{1}'", type.Name, id, GetIdName(type)));

            ExecuteSql(sbSql.ToString());
        }
        /// <summary>
        /// 根据Id集合删除
        /// </summary>
        public void BatchDelete<T>(string ids)
        {
            if (string.IsNullOrWhiteSpace(ids)) return;

            Type type = typeof(T);
            StringBuilder sbSql = new StringBuilder();
            sbSql.Append(string.Format("delete from {0} where {2} in ({1})", type.Name, ids, GetIdName(type)));

            ExecuteSql(sbSql.ToString());
        }
        /// <summary>
        /// 根据条件删除
        /// </summary>
        public void Delete<T>(string conditions)
        {
            if (string.IsNullOrWhiteSpace(conditions)) return;

            Type type = typeof(T);
            StringBuilder sbSql = new StringBuilder();
            sbSql.Append(string.Format("delete from {0} where {1}", type.Name, conditions));

            ExecuteSql(sbSql.ToString());
        }
        #endregion

        #region 获取实体
        #region 根据实体获取实体
        /// <summary>
        /// 根据实体获取实体
        /// </summary>
        private object Find(object obj, bool readCache = true)
        {
            Type type = obj.GetType();

            object result = Activator.CreateInstance(type);
            bool hasValue = false;
            IDataReader rd = null;

            string sql = string.Format("select * from {0} where {2}='{1}'", type.Name, GetIdVal(obj), GetIdName(obj.GetType()));

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return null;
            }
        }
        #endregion

        #region 根据Id获取实体
        /// <summary>
        /// 根据Id获取实体
        /// </summary>
        private object FindById(Type type, int id)
        {
            object result = Activator.CreateInstance(type);
            IDataReader rd = null;
            bool hasValue = false;

            string sql = string.Format("select * from {0} where {2}='{1}'", type.Name, id, GetIdName(type));

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return null;
            }
        }
        #endregion

        #region 根据Id获取实体
        /// <summary>
        /// 根据Id获取实体
        /// </summary>
        public T FindById<T>(string id) where T : new()
        {
            Type type = typeof(T);
            T result = (T)Activator.CreateInstance(type);
            IDataReader rd = null;
            bool hasValue = false;

            string sql = string.Format("select * from {0} where {2}='{1}'", type.Name, id, GetIdName(type));

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return default(T);
            }
        }
        #endregion

        #region 根据sql获取实体
        /// <summary>
        /// 根据sql获取实体
        /// </summary>
        public T FindBySql<T>(string sql) where T : new()
        {
            Type type = typeof(T);
            T result = (T)Activator.CreateInstance(type);
            IDataReader rd = null;
            bool hasValue = false;

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return default(T);
            }
        }
        #endregion
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        public List<T> FindListBySql<T>(string sql) where T : new()
        {
            List<T> list = new List<T>();
            object obj;
            IDataReader rd = null;

            try
            {
                rd = ExecuteReader(sql);

                if (typeof(T) == typeof(int))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else if (typeof(T) == typeof(string))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else
                {
                    PropertyInfo[] propertyInfoList = (typeof(T)).GetProperties();

                    int fcnt = rd.FieldCount;
                    List<string> fileds = new List<string>();
                    for (int i = 0; i < fcnt; i++)
                    {
                        fileds.Add(rd.GetName(i).ToUpper());
                    }

                    while (rd.Read())
                    {
                        IDataRecord record = rd;
                        obj = new T();


                        foreach (PropertyInfo pro in propertyInfoList)
                        {
                            if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                            {
                                continue;
                            }

                            pro.SetValue(obj, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                        }
                        list.Add((T)obj);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            return list;
        }
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        public List<T> FindListBySql<T>(string sql, params DbParameter[] cmdParms) where T : new()
        {
            List<T> list = new List<T>();
            object obj;
            IDataReader rd = null;

            try
            {
                rd = ExecuteReader(sql, cmdParms);

                if (typeof(T) == typeof(int))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else if (typeof(T) == typeof(string))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else
                {
                    PropertyInfo[] propertyInfoList = (typeof(T)).GetProperties();

                    int fcnt = rd.FieldCount;
                    List<string> fileds = new List<string>();
                    for (int i = 0; i < fcnt; i++)
                    {
                        fileds.Add(rd.GetName(i).ToUpper());
                    }

                    while (rd.Read())
                    {
                        IDataRecord record = rd;
                        obj = new T();


                        foreach (PropertyInfo pro in propertyInfoList)
                        {
                            if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                            {
                                continue;
                            }

                            pro.SetValue(obj, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                        }
                        list.Add((T)obj);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            return list;
        }
        #endregion

        #region 分页获取列表
        /// <summary>
        /// 分页(任意entity,尽量少的字段)
        /// </summary>
        public PagerModel FindPageBySql<T>(string sql, string orderby, int pageSize, int currentPage) where T : new()
        {
            PagerModel pagerModel = new PagerModel(currentPage, pageSize);

            using (DbConnection connection = GetConnection())
            {
                connection.Open();
                IDbCommand cmd = null;
                StringBuilder sb = new StringBuilder();
                string commandText = null;
                int startRow = 0;
                int endRow = 0;
                switch (m_DBType)
                {
                    case "oracle":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);
                        endRow = startRow + pageSize;

                        sb.Append("select * from ( select row_limit.*, rownum rownum_ from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.Append(" ) row_limit where rownum <= ");
                        sb.Append(endRow);
                        sb.Append(" ) where rownum_ >");
                        sb.Append(startRow);
                        #endregion
                        break;
                    case "mssql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1) + 1;
                        endRow = startRow + pageSize - 1;

                        sb.Append(string.Format(@"
                            select * from 
                            (select ROW_NUMBER() over({1}) as rowNumber, t.* from ({0}) t) tempTable
                            where rowNumber between {2} and {3} ", sql, orderby, startRow, endRow));
                        #endregion
                        break;
                    case "mysql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append("select * from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" ) row_limit limit {0},{1}", startRow, pageSize);
                        #endregion
                        break;
                    case "sqlite":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" limit {0} offset {1}", pageSize, startRow);
                        #endregion
                        break;
                }

                List<T> list = FindListBySql<T>(sb.ToString());
                pagerModel.result = list;
            }

            return pagerModel;
        }
        #endregion

        #region 分页获取列表
        /// <summary>
        /// 分页(任意entity,尽量少的字段)
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="sql"></param>
        /// <returns></returns>
        public PagerModel FindPageBySql<T>(string sql, string orderby, int pageSize, int currentPage, params DbParameter[] cmdParms) where T : new()
        {
            PagerModel pagerModel = new PagerModel(currentPage, pageSize);

            using (DbConnection connection = GetConnection())
            {
                connection.Open();
                IDbCommand cmd = null;
                StringBuilder sb = new StringBuilder();
                string commandText = null;
                int startRow = 0;
                int endRow = 0;
                switch (m_DBType)
                {
                    case "oracle":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);
                        endRow = startRow + pageSize;

                        sb.Append("select * from ( select row_limit.*, rownum rownum_ from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.Append(" ) row_limit where rownum <= ");
                        sb.Append(endRow);
                        sb.Append(" ) where rownum_ >");
                        sb.Append(startRow);
                        #endregion
                        break;
                    case "mssql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1) + 1;
                        endRow = startRow + pageSize - 1;

                        sb.Append(string.Format(@"
                            select * from 
                            (select ROW_NUMBER() over({1}) as rowNumber, t.* from ({0}) t) tempTable
                            where rowNumber between {2} and {3} ", sql, orderby, startRow, endRow));
                        #endregion
                        break;
                    case "mysql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append("select * from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" ) row_limit limit {0},{1}", startRow, pageSize);
                        #endregion
                        break;
                    case "sqlite":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" limit {0} offset {1}", pageSize, startRow);
                        #endregion
                        break;
                }

                List<T> list = FindListBySql<T>(sb.ToString(), cmdParms);
                pagerModel.result = list;
            }

            return pagerModel;
        }


        #endregion

        #region 分页获取列表
        /// <summary>
        /// 分页(任意entity,尽量少的字段)
        /// </summary>
        public DataSet FindPageBySql(string sql, string orderby, int pageSize, int currentPage, out int totalCount, params DbParameter[] cmdParms)
        {
            DataSet ds = null;

            using (DbConnection connection = GetConnection())
            {
                connection.Open();
                IDbCommand cmd = null;
                StringBuilder sb = new StringBuilder();
                string commandText = null;
                int startRow = 0;
                int endRow = 0;
                totalCount = 0;
                switch (m_DBType)
                {
                    case "oracle":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);
                        endRow = startRow + pageSize;

                        sb.Append("select * from ( select row_limit.*, rownum rownum_ from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.Append(" ) row_limit where rownum <= ");
                        sb.Append(endRow);
                        sb.Append(" ) where rownum_ >");
                        sb.Append(startRow);
                        #endregion
                        break;
                    case "mssql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1) + 1;
                        endRow = startRow + pageSize - 1;

                        sb.Append(string.Format(@"
                            select * from 
                            (select ROW_NUMBER() over({1}) as rowNumber, t.* from ({0}) t) tempTable
                            where rowNumber between {2} and {3} ", sql, orderby, startRow, endRow));
                        #endregion
                        break;
                    case "mysql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append("select * from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" ) row_limit limit {0},{1}", startRow, pageSize);
                        #endregion
                        break;
                    case "sqlite":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" limit {0} offset {1}", pageSize, startRow);
                        #endregion
                        break;
                }

                ds = Query(sql, cmdParms);
            }
            return ds;
        }
        #endregion

        #region getReaderValue 转换数据
        /// <summary>
        /// 转换数据
        /// </summary>
        private Object getReaderValue(Object rdValue, Type ptype)
        {
            if (ptype == typeof(double))
                return Convert.ToDouble(rdValue);

            if (ptype == typeof(decimal))
                return Convert.ToDecimal(rdValue);

            if (ptype == typeof(int))
                return Convert.ToInt32(rdValue);

            if (ptype == typeof(long))
                return Convert.ToInt64(rdValue);

            if (ptype == typeof(DateTime))
                return Convert.ToDateTime(rdValue);

            if (ptype == typeof(Nullable<double>))
                return Convert.ToDouble(rdValue);

            if (ptype == typeof(Nullable<decimal>))
                return Convert.ToDecimal(rdValue);

            if (ptype == typeof(Nullable<int>))
                return Convert.ToInt32(rdValue);

            if (ptype == typeof(Nullable<long>))
                return Convert.ToInt64(rdValue);

            if (ptype == typeof(Nullable<DateTime>))
                return Convert.ToDateTime(rdValue);

            return rdValue;
        }
        #endregion

        #region 获取主键名称
        /// <summary>
        /// 获取主键名称
        /// </summary>
        public string GetIdName(Type type)
        {
            PropertyInfo[] propertyInfoList = GetEntityProperties(type);
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(IsIdAttribute), false).Length > 0)
                {
                    return propertyInfo.Name;
                }
            }
            return "Id";
        }
        #endregion

        #region 获取主键值
        /// <summary>
        /// 获取主键名称
        /// </summary>
        public object GetIdVal(object val)
        {
            string idName = GetIdName(val.GetType());
            if (!string.IsNullOrWhiteSpace(idName))
            {
                return val.GetType().GetProperty(idName).GetValue(val, null);
            }
            return 0;
        }
        #endregion

        #region 获取实体类属性
        /// <summary>
        /// 获取实体类属性
        /// </summary>
        private PropertyInfo[] GetEntityProperties(Type type)
        {
            List<PropertyInfo> result = new List<PropertyInfo>();
            PropertyInfo[] propertyInfoList = type.GetProperties();
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(EdmRelationshipNavigationPropertyAttribute), false).Length == 0
                    && propertyInfo.GetCustomAttributes(typeof(BrowsableAttribute), false).Length == 0)
                {
                    result.Add(propertyInfo);
                }
            }
            return result.ToArray();
        }
        #endregion

        #region 获取基类
        /// <summary>
        /// 获取基类
        /// </summary>
        public Type GetBaseType(Type type)
        {
            while (type.BaseType != null && type.BaseType.Name != typeof(Object).Name)
            {
                type = type.BaseType;
            }
            return type;
        }
        #endregion
        #endregion

        #region 事务
        #region 开始事务
        /// <summary>
        /// 开始事务
        /// </summary>
        public static void BeginTransaction()
        {
            DbConnection conn = GetConnection();
            if (conn.State != ConnectionState.Open) conn.Open();
            m_Tran = conn.BeginTransaction();
        }
        #endregion

        #region 提交事务
        /// <summary>
        /// 提交事务
        /// </summary>
        public static void CommitTransaction()
        {
            DbConnection conn = m_Tran.Connection;
            try
            {
                m_Tran.Commit();
            }
            catch (Exception ex)
            {
                m_Tran.Rollback();
            }
            finally
            {
                if (conn.State == ConnectionState.Open) conn.Close();
                m_Tran.Dispose();
                m_Tran = null;
            }
        }
        #endregion

        #region 回滚事务(出错时调用该方法回滚)
        /// <summary>
        /// 回滚事务(出错时调用该方法回滚)
        /// </summary>
        public static void RollbackTransaction()
        {
            DbConnection conn = m_Tran.Connection;
            m_Tran.Rollback();
            if (conn.State == ConnectionState.Open) conn.Close();
        }
        #endregion
        #endregion
    }
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Data.Common;
using System.Data.Objects.DataClasses;
using System.Data.OracleClient;
using System.Data.SqlClient;
using System.Data.SQLite;
using System.Reflection;
using System.Text;
using Models;
using MySql.Data.MySqlClient;

namespace DBUtil
{
    /// <summary>
    /// 数据库操作类
    /// 2016年09月09日
    /// </summary>
    public class DBHelper
    {
        #region 变量
        /// <summary>
        /// 数据库类型
        /// </summary>
        private static string m_DBType = ConfigurationManager.AppSettings["DBType"];
        /// <summary>
        /// 数据库类型
        /// </summary>
        private static bool m_AutoIncrement = ConfigurationManager.AppSettings["AutoIncrement"].ToLower() == "true" ? true : false;
        /// <summary>
        /// 数据库连接字符串
        /// </summary>
        private static string m_ConnectionString = ConfigurationManager.ConnectionStrings["DefaultConnection"].ToString();
        /// <summary>
        /// 事务
        /// </summary>
        [ThreadStatic]
        private static DbTransaction m_Tran;
        /// <summary>
        /// 带参数的SQL插入和修改语句中,参数前面的符号
        /// </summary>
        private static string m_ParameterMark = GetParameterMark();
        #endregion

        #region 构造函数
        /// <summary>
        /// 数据库操作类
        /// </summary>
        public DBHelper()
        {
        }
        #endregion

        #region 生成变量
        #region 生成 IDbCommand
        /// <summary>
        /// 生成 IDbCommand
        /// </summary>
        private DbCommand GetCommand()
        {
            DbCommand command = null;

            switch (m_DBType)
            {
                case "oracle":
                    command = new OracleCommand();
                    break;
                case "mssql":
                    command = new SqlCommand();
                    break;
                case "mysql":
                    command = new MySqlCommand();
                    break;
                case "sqlite":
                    command = new SQLiteCommand();
                    break;
            }

            return command;
        }
        /// <summary>
        /// 生成 IDbCommand
        /// </summary>
        private DbCommand GetCommand(string sql, DbConnection conn)
        {
            DbCommand command = null;

            switch (m_DBType)
            {
                case "oracle":
                    command = new OracleCommand(sql);
                    command.Connection = conn;
                    break;
                case "mssql":
                    command = new SqlCommand(sql);
                    command.Connection = conn;
                    break;
                case "mysql":
                    command = new MySqlCommand(sql);
                    command.Connection = conn;
                    break;
                case "sqlite":
                    command = new SQLiteCommand(sql);
                    command.Connection = conn;
                    break;
            }

            return command;
        }
        #endregion

        #region 生成 IDbConnection
        /// <summary>
        /// 生成 IDbConnection
        /// </summary>
        private static DbConnection GetConnection()
        {
            DbConnection conn = null;

            switch (m_DBType)
            {
                case "oracle":
                    conn = new OracleConnection(m_ConnectionString);
                    break;
                case "mssql":
                    conn = new SqlConnection(m_ConnectionString);
                    break;
                case "mysql":
                    conn = new MySqlConnection(m_ConnectionString);
                    break;
                case "sqlite":
                    conn = new SQLiteConnection(m_ConnectionString);
                    break;
            }

            return conn;
        }
        #endregion

        #region 生成 IDbDataAdapter
        /// <summary>
        /// 生成 IDbDataAdapter
        /// </summary>
        private DbDataAdapter GetDataAdapter(DbCommand cmd)
        {
            DbDataAdapter dataAdapter = null;

            switch (m_DBType)
            {
                case "oracle":
                    dataAdapter = new OracleDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
                case "mssql":
                    dataAdapter = new SqlDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
                case "mysql":
                    dataAdapter = new MySqlDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
                case "sqlite":
                    dataAdapter = new SQLiteDataAdapter();
                    dataAdapter.SelectCommand = cmd;
                    break;
            }

            return dataAdapter;
        }
        #endregion

        #region 生成 m_ParameterMark
        /// <summary>
        /// 生成 m_ParameterMark
        /// </summary>
        private static string GetParameterMark()
        {
            switch (m_DBType)
            {
                case "oracle":
                    return ":";
                case "mssql":
                    return "@";
                case "mysql":
                    return "@";
                case "sqlite":
                    return ":";
            }
            return ":";
        }
        #endregion

        #region 生成 DbParameter
        /// <summary>
        /// 生成 DbParameter
        /// </summary>
        private DbParameter GetDbParameter(string name, object value)
        {
            DbParameter dbParameter = null;

            switch (m_DBType)
            {
                case "oracle":
                    dbParameter = new OracleParameter(name, value);
                    break;
                case "mssql":
                    dbParameter = new SqlParameter(name, value);
                    break;
                case "mysql":
                    dbParameter = new MySqlParameter(name, value);
                    break;
                case "sqlite":
                    dbParameter = new SQLiteParameter(name, value);
                    break;
            }

            return dbParameter;
        }
        #endregion
        #endregion

        #region 基础方法
        #region  执行简单SQL语句
        #region Exists
        public bool Exists(string sqlString)
        {
            using (DbConnection conn = GetConnection())
            {
                using (DbCommand cmd = GetCommand(sqlString, conn))
                {
                    try
                    {
                        conn.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return false;
                        }
                        else
                        {
                            return true;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                    finally
                    {
                        cmd.Dispose();
                        conn.Close();
                    }
                }
            }
        }
        #endregion

        #region 执行SQL语句,返回影响的记录数
        /// <summary>
        /// 执行SQL语句,返回影响的记录数
        /// </summary>
        /// <param name="sqlString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public int ExecuteSql(string sqlString)
        {
            DbConnection conn = m_Tran == null ? GetConnection() : m_Tran.Connection;
            using (DbCommand cmd = GetCommand(sqlString, conn))
            {
                try
                {
                    if (conn.State != ConnectionState.Open) conn.Open();
                    if (m_Tran != null) cmd.Transaction = m_Tran;
                    int rows = cmd.ExecuteNonQuery();
                    return rows;
                }
                catch (Exception ex)
                {
                    throw new Exception(ex.Message);
                }
                finally
                {
                    cmd.Dispose();
                    if (m_Tran == null) conn.Close();
                }
            }
        }
        #endregion

        #region 执行一条计算查询结果语句,返回查询结果
        /// <summary>
        /// 执行一条计算查询结果语句,返回查询结果(object)
        /// </summary>
        /// <param name="sqlString">计算查询结果语句</param>
        /// <returns>查询结果(object)</returns>
        public object GetSingle(string sqlString)
        {
            using (DbConnection conn = GetConnection())
            {
                using (DbCommand cmd = GetCommand(sqlString, conn))
                {
                    try
                    {
                        if (conn.State != ConnectionState.Open) conn.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return null;
                        }
                        else
                        {
                            return obj;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                    finally
                    {
                        cmd.Dispose();
                    }
                }
            }
        }
        #endregion

        #region 执行查询语句,返回IDataReader
        /// <summary>
        /// 执行查询语句,返回IDataReader ( 注意:调用该方法后,一定要对IDataReader进行Close )
        /// </summary>
        /// <param name="sqlString">查询语句</param>
        /// <returns>IDataReader</returns>
        public DbDataReader ExecuteReader(string sqlString)
        {
            DbConnection conn = GetConnection();
            DbCommand cmd = GetCommand(sqlString, conn);
            try
            {
                if (conn.State != ConnectionState.Open) conn.Open();
                DbDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                return myReader;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion

        #region 执行查询语句,返回DataSet
        /// <summary>
        /// 执行查询语句,返回DataSet
        /// </summary>
        /// <param name="sqlString">查询语句</param>
        /// <returns>DataSet</returns>
        public DataSet Query(string sqlString)
        {
            using (DbConnection conn = GetConnection())
            {
                DataSet ds = new DataSet();
                try
                {
                    conn.Open();
                    using (DbCommand cmd = GetCommand(sqlString, conn))
                    {
                        DbDataAdapter adapter = GetDataAdapter(cmd);
                        adapter.Fill(ds, "ds");
                    }
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    conn.Close();
                }
                return ds;
            }
        }
        #endregion
        #endregion

        #region 执行带参数的SQL语句
        #region 执行SQL语句,返回影响的记录数
        /// <summary>
        /// 执行SQL语句,返回影响的记录数
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public int ExecuteSql(string SQLString, params DbParameter[] cmdParms)
        {
            DbConnection conn = m_Tran == null ? GetConnection() : m_Tran.Connection;
            using (DbCommand cmd = GetCommand())
            {
                try
                {
                    PrepareCommand(cmd, conn, m_Tran, SQLString, cmdParms);
                    int rows = cmd.ExecuteNonQuery();
                    cmd.Parameters.Clear();
                    return rows;
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    cmd.Dispose();
                    if (m_Tran == null) conn.Close();
                }
            }
        }
        #endregion

        #region 执行查询语句,返回IDataReader
        /// <summary>
        /// 执行查询语句,返回IDataReader ( 注意:调用该方法后,一定要对IDataReader进行Close )
        /// </summary>
        /// <param name="strSQL">查询语句</param>
        /// <returns>IDataReader</returns>
        public DbDataReader ExecuteReader(string sqlString, params DbParameter[] cmdParms)
        {
            DbConnection conn = GetConnection();
            DbCommand cmd = GetCommand();
            try
            {
                PrepareCommand(cmd, conn, null, sqlString, cmdParms);
                DbDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                cmd.Parameters.Clear();
                return myReader;
            }
            catch (Exception ex)
            {
                throw ex;
            }

        }
        #endregion

        #region 执行查询语句,返回DataSet
        /// <summary>
        /// 执行查询语句,返回DataSet
        /// </summary>
        /// <param name="sqlString">查询语句</param>
        /// <returns>DataSet</returns>
        public DataSet Query(string sqlString, params DbParameter[] cmdParms)
        {
            DbConnection conn = GetConnection();
            DbCommand cmd = GetCommand();
            PrepareCommand(cmd, conn, null, sqlString, cmdParms);
            using (DbDataAdapter da = GetDataAdapter(cmd))
            {
                DataSet ds = new DataSet();
                try
                {
                    da.Fill(ds, "ds");
                    cmd.Parameters.Clear();
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    cmd.Dispose();
                    conn.Close();
                }
                return ds;
            }
        }
        #endregion

        #region PrepareCommand
        private void PrepareCommand(DbCommand cmd, DbConnection conn, DbTransaction trans, string cmdText, DbParameter[] cmdParms)
        {
            if (conn.State != ConnectionState.Open) conn.Open();
            cmd.Connection = conn;
            cmd.CommandText = cmdText;
            if (trans != null) cmd.Transaction = trans;
            cmd.CommandType = CommandType.Text;
            if (cmdParms != null)
            {
                foreach (DbParameter parm in cmdParms)
                {
                    cmd.Parameters.Add(parm);
                }
            }
        }
        #endregion
        #endregion
        #endregion

        #region 增删改查
        #region 获取最大编号
        /// <summary>
        /// 获取最大编号
        /// </summary>
        /// <typeparam name="T">实体Model</typeparam>
        /// <param name="key">主键</param>
        public int GetMaxID<T>(string key)
        {
            Type type = typeof(T);

            string sql = null;
            switch (m_DBType)
            {
                case "oracle":
                    sql = string.Format("SELECT Max({0}) FROM {1}", key, type.Name);
                    break;
                case "mssql":
                    sql = string.Format("SELECT Max({0}) FROM {1}", key, type.Name);
                    break;
                case "mysql":
                    sql = string.Format("SELECT Max({0}) FROM {1}", key, type.Name);
                    break;
                case "sqlite":
                    sql = string.Format("SELECT Max(cast({0} as int)) FROM {1}", key, type.Name);
                    break;
            }

            using (DbConnection conn = GetConnection())
            {
                using (IDbCommand cmd = GetCommand(sql, conn))
                {
                    try
                    {
                        conn.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return 1;
                        }
                        else
                        {
                            return int.Parse(obj.ToString()) + 1;
                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                    finally
                    {
                        cmd.Dispose();
                        conn.Close();
                    }
                }
            }
        }
        #endregion

        #region 添加
        /// <summary>
        /// 添加
        /// </summary>
        public void Insert(object obj)
        {
            Insert(obj, m_AutoIncrement);
        }
        /// <summary>
        /// 添加
        /// </summary>
        public void Insert(object obj, bool autoIncrement)
        {
            StringBuilder strSql = new StringBuilder();
            Type type = obj.GetType();
            strSql.Append(string.Format("insert into {0}(", type.Name));

            PropertyInfo[] propertyInfoList = GetEntityProperties(type);
            List<string> propertyNameList = new List<string>();
            int savedCount = 0;
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(IsIdAttribute), false).Length > 0 && autoIncrement) return;
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    propertyNameList.Add(propertyInfo.Name);
                    savedCount++;
                }
            }

            strSql.Append(string.Format("{0})", string.Join(",", propertyNameList.ToArray())));
            strSql.Append(string.Format(" values ({0})", string.Join(",", propertyNameList.ConvertAll<string>(a => m_ParameterMark + a).ToArray())));
            DbParameter[] parameters = new DbParameter[savedCount];
            int k = 0;
            for (int i = 0; i < propertyInfoList.Length && savedCount > 0; i++)
            {
                PropertyInfo propertyInfo = propertyInfoList[i];
                if (propertyInfo.GetCustomAttributes(typeof(IsIdAttribute), false).Length > 0 && autoIncrement) return;
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    object val = propertyInfo.GetValue(obj, null);
                    DbParameter param = GetDbParameter(m_ParameterMark + propertyInfo.Name, val == null ? DBNull.Value : val);
                    parameters[k++] = param;
                }
            }

            ExecuteSql(strSql.ToString(), parameters);
        }
        #endregion

        #region 修改
        /// <summary>
        /// 修改
        /// </summary>
        public void Update(object obj)
        {
            object oldObj = Find(obj, false);
            if (oldObj == null) throw new Exception("无法获取到旧数据");

            StringBuilder strSql = new StringBuilder();
            Type type = obj.GetType();
            strSql.Append(string.Format("update {0} ", type.Name));

            PropertyInfo[] propertyInfoList = GetEntityProperties(type);
            List<string> propertyNameList = new List<string>();
            int savedCount = 0;
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    object oldVal = propertyInfo.GetValue(oldObj, null);
                    object val = propertyInfo.GetValue(obj, null);
                    if (!object.Equals(oldVal, val))
                    {
                        propertyNameList.Add(propertyInfo.Name);
                        savedCount++;
                    }
                }
            }

            strSql.Append(string.Format(" set "));
            DbParameter[] parameters = new DbParameter[savedCount];
            StringBuilder sbPros = new StringBuilder();
            int k = 0;
            for (int i = 0; i < propertyInfoList.Length && savedCount > 0; i++)
            {
                PropertyInfo propertyInfo = propertyInfoList[i];
                if (propertyInfo.GetCustomAttributes(typeof(IsDBFieldAttribute), false).Length > 0)
                {
                    object oldVal = propertyInfo.GetValue(oldObj, null);
                    object val = propertyInfo.GetValue(obj, null);
                    if (!object.Equals(oldVal, val))
                    {
                        sbPros.Append(string.Format(" {0}={1}{0},", propertyInfo.Name, m_ParameterMark));
                        DbParameter param = GetDbParameter(m_ParameterMark + propertyInfo.Name, val == null ? DBNull.Value : val);
                        parameters[k++] = param;
                    }
                }
            }
            if (sbPros.Length > 0)
            {
                strSql.Append(sbPros.ToString(0, sbPros.Length - 1));
            }
            strSql.Append(string.Format(" where {0}='{1}'", GetIdName(obj.GetType()), GetIdVal(obj).ToString()));

            if (savedCount > 0)
            {
                ExecuteSql(strSql.ToString(), parameters);
            }
        }
        #endregion

        #region 删除
        /// <summary>
        /// 根据Id删除
        /// </summary>
        public void Delete<T>(int id)
        {
            Type type = typeof(T);
            StringBuilder sbSql = new StringBuilder();
            sbSql.Append(string.Format("delete from {0} where {2}='{1}'", type.Name, id, GetIdName(type)));

            ExecuteSql(sbSql.ToString());
        }
        /// <summary>
        /// 根据Id集合删除
        /// </summary>
        public void BatchDelete<T>(string ids)
        {
            if (string.IsNullOrWhiteSpace(ids)) return;

            Type type = typeof(T);
            StringBuilder sbSql = new StringBuilder();
            sbSql.Append(string.Format("delete from {0} where {2} in ({1})", type.Name, ids, GetIdName(type)));

            ExecuteSql(sbSql.ToString());
        }
        /// <summary>
        /// 根据条件删除
        /// </summary>
        public void Delete<T>(string conditions)
        {
            if (string.IsNullOrWhiteSpace(conditions)) return;

            Type type = typeof(T);
            StringBuilder sbSql = new StringBuilder();
            sbSql.Append(string.Format("delete from {0} where {1}", type.Name, conditions));

            ExecuteSql(sbSql.ToString());
        }
        #endregion

        #region 获取实体
        #region 根据实体获取实体
        /// <summary>
        /// 根据实体获取实体
        /// </summary>
        private object Find(object obj, bool readCache = true)
        {
            Type type = obj.GetType();

            object result = Activator.CreateInstance(type);
            bool hasValue = false;
            IDataReader rd = null;

            string sql = string.Format("select * from {0} where {2}='{1}'", type.Name, GetIdVal(obj), GetIdName(obj.GetType()));

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return null;
            }
        }
        #endregion

        #region 根据Id获取实体
        /// <summary>
        /// 根据Id获取实体
        /// </summary>
        private object FindById(Type type, int id)
        {
            object result = Activator.CreateInstance(type);
            IDataReader rd = null;
            bool hasValue = false;

            string sql = string.Format("select * from {0} where {2}='{1}'", type.Name, id, GetIdName(type));

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return null;
            }
        }
        #endregion

        #region 根据Id获取实体
        /// <summary>
        /// 根据Id获取实体
        /// </summary>
        public T FindById<T>(string id) where T : new()
        {
            Type type = typeof(T);
            T result = (T)Activator.CreateInstance(type);
            IDataReader rd = null;
            bool hasValue = false;

            string sql = string.Format("select * from {0} where {2}='{1}'", type.Name, id, GetIdName(type));

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return default(T);
            }
        }
        #endregion

        #region 根据sql获取实体
        /// <summary>
        /// 根据sql获取实体
        /// </summary>
        public T FindBySql<T>(string sql) where T : new()
        {
            Type type = typeof(T);
            T result = (T)Activator.CreateInstance(type);
            IDataReader rd = null;
            bool hasValue = false;

            try
            {
                rd = ExecuteReader(sql);

                PropertyInfo[] propertyInfoList = GetEntityProperties(type);

                int fcnt = rd.FieldCount;
                List<string> fileds = new List<string>();
                for (int i = 0; i < fcnt; i++)
                {
                    fileds.Add(rd.GetName(i).ToUpper());
                }

                while (rd.Read())
                {
                    hasValue = true;
                    IDataRecord record = rd;

                    foreach (PropertyInfo pro in propertyInfoList)
                    {
                        if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                        {
                            continue;
                        }

                        pro.SetValue(result, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            if (hasValue)
            {
                return result;
            }
            else
            {
                return default(T);
            }
        }
        #endregion
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        public List<T> FindListBySql<T>(string sql) where T : new()
        {
            List<T> list = new List<T>();
            object obj;
            IDataReader rd = null;

            try
            {
                rd = ExecuteReader(sql);

                if (typeof(T) == typeof(int))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else if (typeof(T) == typeof(string))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else
                {
                    PropertyInfo[] propertyInfoList = (typeof(T)).GetProperties();

                    int fcnt = rd.FieldCount;
                    List<string> fileds = new List<string>();
                    for (int i = 0; i < fcnt; i++)
                    {
                        fileds.Add(rd.GetName(i).ToUpper());
                    }

                    while (rd.Read())
                    {
                        IDataRecord record = rd;
                        obj = new T();


                        foreach (PropertyInfo pro in propertyInfoList)
                        {
                            if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                            {
                                continue;
                            }

                            pro.SetValue(obj, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                        }
                        list.Add((T)obj);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            return list;
        }
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        public List<T> FindListBySql<T>(string sql, params DbParameter[] cmdParms) where T : new()
        {
            List<T> list = new List<T>();
            object obj;
            IDataReader rd = null;

            try
            {
                rd = ExecuteReader(sql, cmdParms);

                if (typeof(T) == typeof(int))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else if (typeof(T) == typeof(string))
                {
                    while (rd.Read())
                    {
                        list.Add((T)rd[0]);
                    }
                }
                else
                {
                    PropertyInfo[] propertyInfoList = (typeof(T)).GetProperties();

                    int fcnt = rd.FieldCount;
                    List<string> fileds = new List<string>();
                    for (int i = 0; i < fcnt; i++)
                    {
                        fileds.Add(rd.GetName(i).ToUpper());
                    }

                    while (rd.Read())
                    {
                        IDataRecord record = rd;
                        obj = new T();


                        foreach (PropertyInfo pro in propertyInfoList)
                        {
                            if (!fileds.Contains(pro.Name.ToUpper()) || record[pro.Name] == DBNull.Value)
                            {
                                continue;
                            }

                            pro.SetValue(obj, record[pro.Name] == DBNull.Value ? null : getReaderValue(record[pro.Name], pro.PropertyType), null);
                        }
                        list.Add((T)obj);
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (rd != null && !rd.IsClosed)
                {
                    rd.Close();
                    rd.Dispose();
                }
            }

            return list;
        }
        #endregion

        #region 分页获取列表
        /// <summary>
        /// 分页(任意entity,尽量少的字段)
        /// </summary>
        public PagerModel FindPageBySql<T>(string sql, string orderby, int pageSize, int currentPage) where T : new()
        {
            PagerModel pagerModel = new PagerModel(currentPage, pageSize);

            using (DbConnection connection = GetConnection())
            {
                connection.Open();
                IDbCommand cmd = null;
                StringBuilder sb = new StringBuilder();
                string commandText = null;
                int startRow = 0;
                int endRow = 0;
                switch (m_DBType)
                {
                    case "oracle":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);
                        endRow = startRow + pageSize;

                        sb.Append("select * from ( select row_limit.*, rownum rownum_ from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.Append(" ) row_limit where rownum <= ");
                        sb.Append(endRow);
                        sb.Append(" ) where rownum_ >");
                        sb.Append(startRow);
                        #endregion
                        break;
                    case "mssql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1) + 1;
                        endRow = startRow + pageSize - 1;

                        sb.Append(string.Format(@"
                            select * from 
                            (select ROW_NUMBER() over({1}) as rowNumber, t.* from ({0}) t) tempTable
                            where rowNumber between {2} and {3} ", sql, orderby, startRow, endRow));
                        #endregion
                        break;
                    case "mysql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append("select * from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" ) row_limit limit {0},{1}", startRow, pageSize);
                        #endregion
                        break;
                    case "sqlite":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" limit {0} offset {1}", pageSize, startRow);
                        #endregion
                        break;
                }

                List<T> list = FindListBySql<T>(sb.ToString());
                pagerModel.result = list;
            }

            return pagerModel;
        }
        #endregion

        #region 分页获取列表
        /// <summary>
        /// 分页(任意entity,尽量少的字段)
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="sql"></param>
        /// <returns></returns>
        public PagerModel FindPageBySql<T>(string sql, string orderby, int pageSize, int currentPage, params DbParameter[] cmdParms) where T : new()
        {
            PagerModel pagerModel = new PagerModel(currentPage, pageSize);

            using (DbConnection connection = GetConnection())
            {
                connection.Open();
                IDbCommand cmd = null;
                StringBuilder sb = new StringBuilder();
                string commandText = null;
                int startRow = 0;
                int endRow = 0;
                switch (m_DBType)
                {
                    case "oracle":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);
                        endRow = startRow + pageSize;

                        sb.Append("select * from ( select row_limit.*, rownum rownum_ from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.Append(" ) row_limit where rownum <= ");
                        sb.Append(endRow);
                        sb.Append(" ) where rownum_ >");
                        sb.Append(startRow);
                        #endregion
                        break;
                    case "mssql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1) + 1;
                        endRow = startRow + pageSize - 1;

                        sb.Append(string.Format(@"
                            select * from 
                            (select ROW_NUMBER() over({1}) as rowNumber, t.* from ({0}) t) tempTable
                            where rowNumber between {2} and {3} ", sql, orderby, startRow, endRow));
                        #endregion
                        break;
                    case "mysql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append("select * from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" ) row_limit limit {0},{1}", startRow, pageSize);
                        #endregion
                        break;
                    case "sqlite":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        pagerModel.totalRows = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" limit {0} offset {1}", pageSize, startRow);
                        #endregion
                        break;
                }

                List<T> list = FindListBySql<T>(sb.ToString(), cmdParms);
                pagerModel.result = list;
            }

            return pagerModel;
        }


        #endregion

        #region 分页获取列表
        /// <summary>
        /// 分页(任意entity,尽量少的字段)
        /// </summary>
        public DataSet FindPageBySql(string sql, string orderby, int pageSize, int currentPage, out int totalCount, params DbParameter[] cmdParms)
        {
            DataSet ds = null;

            using (DbConnection connection = GetConnection())
            {
                connection.Open();
                IDbCommand cmd = null;
                StringBuilder sb = new StringBuilder();
                string commandText = null;
                int startRow = 0;
                int endRow = 0;
                totalCount = 0;
                switch (m_DBType)
                {
                    case "oracle":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);
                        endRow = startRow + pageSize;

                        sb.Append("select * from ( select row_limit.*, rownum rownum_ from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.Append(" ) row_limit where rownum <= ");
                        sb.Append(endRow);
                        sb.Append(" ) where rownum_ >");
                        sb.Append(startRow);
                        #endregion
                        break;
                    case "mssql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1) + 1;
                        endRow = startRow + pageSize - 1;

                        sb.Append(string.Format(@"
                            select * from 
                            (select ROW_NUMBER() over({1}) as rowNumber, t.* from ({0}) t) tempTable
                            where rowNumber between {2} and {3} ", sql, orderby, startRow, endRow));
                        #endregion
                        break;
                    case "mysql":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append("select * from (");
                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" ) row_limit limit {0},{1}", startRow, pageSize);
                        #endregion
                        break;
                    case "sqlite":
                        #region 分页查询语句
                        commandText = string.Format("select count(*) from ({0}) T", sql);
                        cmd = GetCommand(commandText, connection);
                        totalCount = int.Parse(cmd.ExecuteScalar().ToString());

                        startRow = pageSize * (currentPage - 1);

                        sb.Append(sql);
                        if (!string.IsNullOrWhiteSpace(orderby))
                        {
                            sb.Append(" ");
                            sb.Append(orderby);
                        }
                        sb.AppendFormat(" limit {0} offset {1}", pageSize, startRow);
                        #endregion
                        break;
                }

                ds = Query(sql, cmdParms);
            }
            return ds;
        }
        #endregion

        #region getReaderValue 转换数据
        /// <summary>
        /// 转换数据
        /// </summary>
        private Object getReaderValue(Object rdValue, Type ptype)
        {
            if (ptype == typeof(double))
                return Convert.ToDouble(rdValue);

            if (ptype == typeof(decimal))
                return Convert.ToDecimal(rdValue);

            if (ptype == typeof(int))
                return Convert.ToInt32(rdValue);

            if (ptype == typeof(long))
                return Convert.ToInt64(rdValue);

            if (ptype == typeof(DateTime))
                return Convert.ToDateTime(rdValue);

            if (ptype == typeof(Nullable<double>))
                return Convert.ToDouble(rdValue);

            if (ptype == typeof(Nullable<decimal>))
                return Convert.ToDecimal(rdValue);

            if (ptype == typeof(Nullable<int>))
                return Convert.ToInt32(rdValue);

            if (ptype == typeof(Nullable<long>))
                return Convert.ToInt64(rdValue);

            if (ptype == typeof(Nullable<DateTime>))
                return Convert.ToDateTime(rdValue);

            return rdValue;
        }
        #endregion

        #region 获取主键名称
        /// <summary>
        /// 获取主键名称
        /// </summary>
        public string GetIdName(Type type)
        {
            PropertyInfo[] propertyInfoList = GetEntityProperties(type);
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(IsIdAttribute), false).Length > 0)
                {
                    return propertyInfo.Name;
                }
            }
            return "Id";
        }
        #endregion

        #region 获取主键值
        /// <summary>
        /// 获取主键名称
        /// </summary>
        public object GetIdVal(object val)
        {
            string idName = GetIdName(val.GetType());
            if (!string.IsNullOrWhiteSpace(idName))
            {
                return val.GetType().GetProperty(idName).GetValue(val, null);
            }
            return 0;
        }
        #endregion

        #region 获取实体类属性
        /// <summary>
        /// 获取实体类属性
        /// </summary>
        private PropertyInfo[] GetEntityProperties(Type type)
        {
            List<PropertyInfo> result = new List<PropertyInfo>();
            PropertyInfo[] propertyInfoList = type.GetProperties();
            foreach (PropertyInfo propertyInfo in propertyInfoList)
            {
                if (propertyInfo.GetCustomAttributes(typeof(EdmRelationshipNavigationPropertyAttribute), false).Length == 0
                    && propertyInfo.GetCustomAttributes(typeof(BrowsableAttribute), false).Length == 0)
                {
                    result.Add(propertyInfo);
                }
            }
            return result.ToArray();
        }
        #endregion

        #region 获取基类
        /// <summary>
        /// 获取基类
        /// </summary>
        public Type GetBaseType(Type type)
        {
            while (type.BaseType != null && type.BaseType.Name != typeof(Object).Name)
            {
                type = type.BaseType;
            }
            return type;
        }
        #endregion
        #endregion

        #region 事务
        #region 开始事务
        /// <summary>
        /// 开始事务
        /// </summary>
        public static void BeginTransaction()
        {
            DbConnection conn = GetConnection();
            if (conn.State != ConnectionState.Open) conn.Open();
            m_Tran = conn.BeginTransaction();
        }
        #endregion

        #region 提交事务
        /// <summary>
        /// 提交事务
        /// </summary>
        public static void CommitTransaction()
        {
            DbConnection conn = m_Tran.Connection;
            try
            {
                m_Tran.Commit();
            }
            catch (Exception ex)
            {
                m_Tran.Rollback();
            }
            finally
            {
                if (conn.State == ConnectionState.Open) conn.Close();
                m_Tran.Dispose();
                m_Tran = null;
            }
        }
        #endregion

        #region 回滚事务(出错时调用该方法回滚)
        /// <summary>
        /// 回滚事务(出错时调用该方法回滚)
        /// </summary>
        public static void RollbackTransaction()
        {
            DbConnection conn = m_Tran.Connection;
            m_Tran.Rollback();
            if (conn.State == ConnectionState.Open) conn.Close();
        }
        #endregion
        #endregion
    }
}

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View Code

View Code

证实:Models目录中的类及其个性和数据库中的表和字段是完全对应的,Models全部由生成器生成,并且不允许手动修改。ExtModels目录中的类是增加类,首要用来查询与显示,比如表中存的是code,但您供给关联合检查询另一张表中的name,就能够在那几个扩张类中扩展二个用来体现的name字段。Models和ExtModels目录的中类都以partial修饰。

申明:Models目录中的类及其特性和数据库中的表和字段是一心对应的,Models全部由生成器生成,并且不一样意手动修改。ExtModels目录中的类是扩张类,首要用于查询与体现,比方表中存的是code,但您须要关联查询另一张表中的name,就能够在这些扩张类中扩张一个用于显示的name字段。Models和ExtModels目录的中类都是partial修饰。

 

 

PagerModel类:

PagerModel类:

何以采纳:

什么样使用:

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    添加:

    添加:

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace Models
{
    /// <summary>
    /// 分页
    /// </summary>
    public class PagerModel
    {
        #region 字段
        /// <summary>
        /// 当前页数
        /// </summary>
        public int page { get; set; }
        /// <summary>
        /// 每页记录数
        /// </summary>
        public int rows { get; set; }
        /// <summary>
        /// 排序字段
        /// </summary>
        public string sort { get; set; }
        /// <summary>
        /// 排序的方式asc,desc
        /// </summary>
        public string order { get; set; }
        /// <summary>
        /// 记录
        /// </summary>
        public object result { get; set; }
        /// <summary>
        /// 记录数
        /// </summary>
        public int totalRows { get; set; }
        #endregion

        #region 构造函数
        public PagerModel()
        {

        }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="page">当前页数</param>
        /// <param name="rows">每页记录数</param>
        public PagerModel(int page, int rows)
        {
            this.page = page;
            this.rows = rows;
        }
        #endregion

        #region 扩展字段
        /// <summary>
        /// 总页数
        /// </summary>
        public int pageCount
        {
            get
            {
                return (totalRows - 1) / rows + 1;
            }
        }
        /// <summary>
        /// 上一页
        /// </summary>
        public int prePage
        {
            get
            {
                if (page - 1 > 0)
                {
                    return page - 1;
                }
                return 1;
            }
        }
        /// <summary>
        /// 下一页
        /// </summary>
        public int nextPage
        {
            get
            {
                if (page + 1 < pageCount)
                {
                    return page + 1;
                }
                return pageCount;
            }
        }
        #endregion

    }
}
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace Models
{
    /// <summary>
    /// 分页
    /// </summary>
    public class PagerModel
    {
        #region 字段
        /// <summary>
        /// 当前页数
        /// </summary>
        public int page { get; set; }
        /// <summary>
        /// 每页记录数
        /// </summary>
        public int rows { get; set; }
        /// <summary>
        /// 排序字段
        /// </summary>
        public string sort { get; set; }
        /// <summary>
        /// 排序的方式asc,desc
        /// </summary>
        public string order { get; set; }
        /// <summary>
        /// 记录
        /// </summary>
        public object result { get; set; }
        /// <summary>
        /// 记录数
        /// </summary>
        public int totalRows { get; set; }
        #endregion

        #region 构造函数
        public PagerModel()
        {

        }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="page">当前页数</param>
        /// <param name="rows">每页记录数</param>
        public PagerModel(int page, int rows)
        {
            this.page = page;
            this.rows = rows;
        }
        #endregion

        #region 扩展字段
        /// <summary>
        /// 总页数
        /// </summary>
        public int pageCount
        {
            get
            {
                return (totalRows - 1) / rows + 1;
            }
        }
        /// <summary>
        /// 上一页
        /// </summary>
        public int prePage
        {
            get
            {
                if (page - 1 > 0)
                {
                    return page - 1;
                }
                return 1;
            }
        }
        /// <summary>
        /// 下一页
        /// </summary>
        public int nextPage
        {
            get
            {
                if (page + 1 < pageCount)
                {
                    return page + 1;
                }
                return pageCount;
            }
        }
        #endregion

    }
}

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View Code

/// <summary>
/// 添加
/// </summary>
public void Insert(object obj)
{
    dbHelper.Insert(obj);
}
/// <summary>
/// 添加
/// </summary>
public void Insert(object obj)
{
    dbHelper.Insert(obj);
}

IsIdAttribute类:

IsIdAttribute类:

View Code

View Code

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    修改:

    修改:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Models
{
    /// <summary>
    /// 标识该属性是主健
    /// </summary>
    [Serializable, AttributeUsage(AttributeTargets.Property | AttributeTargets.Class)]
    public class IsIdAttribute : Attribute
    {
    }
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Models
{
    /// <summary>
    /// 标识该属性是主健
    /// </summary>
    [Serializable, AttributeUsage(AttributeTargets.Property | AttributeTargets.Class)]
    public class IsIdAttribute : Attribute
    {
    }
}

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View Code

/// <summary>
/// 修改
/// </summary>
public void Update(object obj)
{
    dbHelper.Update(obj);
}
/// <summary>
/// 修改
/// </summary>
public void Update(object obj)
{
    dbHelper.Update(obj);
}

IsDBFieldAttribute类:

IsDBFieldAttribute类:

View Code

View Code

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    根据ID删除:

    根据ID删除:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Models
{
    /// <summary>
    /// 标识该属性是数据库字段
    /// </summary>
    [Serializable, AttributeUsage(AttributeTargets.Property | AttributeTargets.Class)]
    public class IsDBFieldAttribute : Attribute
    {
    }
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Models
{
    /// <summary>
    /// 标识该属性是数据库字段
    /// </summary>
    [Serializable, AttributeUsage(AttributeTargets.Property | AttributeTargets.Class)]
    public class IsDBFieldAttribute : Attribute
    {
    }
}

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/// <summary>
/// 删除
/// </summary>
public void Del(int id)
{
    dbHelper.Delete<BS_Template>(id);
}
/// <summary>
/// 删除
/// </summary>
public void Del(int id)
{
    dbHelper.Delete<BS_Template>(id);
}

Models示例:

Models示例:

View Code

View Code

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    依据ID批量删除:

    依据ID批量删除:

using System;
using System.Collections.Generic;
using System.Linq;

namespace Models
{
    /// <summary>
    /// 内容详情
    /// </summary>
    [Serializable]
    public partial class cms_content
    {
        /// <summary>
        /// 编号
        /// </summary>
        [IsId]
        [IsDBField]
        public int id { get; set; }
        /// <summary>
        /// 所属栏目ID
        /// </summary>
        [IsDBField]
        public int? channelId { get; set; }
        /// <summary>
        /// 标题
        /// </summary>
        [IsDBField]
        public string title { get; set; }
        /// <summary>
        /// 内容
        /// </summary>
        [IsDBField]
        public string contents { get; set; }
        /// <summary>
        /// 作者
        /// </summary>
        [IsDBField]
        public string author { get; set; }
        /// <summary>
        /// 阅读次数
        /// </summary>
        [IsDBField]
        public int? readCount { get; set; }
        /// <summary>
        /// 发布时间
        /// </summary>
        [IsDBField]
        public DateTime? publishTime { get; set; }
        /// <summary>
        /// 发布者
        /// </summary>
        [IsDBField]
        public int? publishUserId { get; set; }
        /// <summary>
        /// 审核(0待审1通过2不通过)
        /// </summary>
        [IsDBField]
        public int? audit { get; set; }
        /// <summary>
        /// 审核人
        /// </summary>
        [IsDBField]
        public int? auditUserId { get; set; }
        /// <summary>
        /// 审核时间
        /// </summary>
        [IsDBField]
        public DateTime? auditTime { get; set; }
        /// <summary>
        /// 页面关键词
        /// </summary>
        [IsDBField]
        public string keywords { get; set; }
        /// <summary>
        /// 页面描述
        /// </summary>
        [IsDBField]
        public string description { get; set; }
        /// <summary>
        /// 页面链接
        /// </summary>
        [IsDBField]
        public string pageUrl { get; set; }
        /// <summary>
        /// 内容封面
        /// </summary>
        [IsDBField]
        public string imgUrl { get; set; }
        /// <summary>
        /// 是否链接(0否1是)
        /// </summary>
        [IsDBField]
        public int? isPageUrl { get; set; }
        /// <summary>
        /// 模板(模板文件名,例:content.html)
        /// </summary>
        [IsDBField]
        public string template { get; set; }
        /// <summary>
        /// 推荐(1推荐0不推荐)
        /// </summary>
        [IsDBField]
        public int? recommend { get; set; }
    }
}
using System;
using System.Collections.Generic;
using System.Linq;

namespace Models
{
    /// <summary>
    /// 内容详情
    /// </summary>
    [Serializable]
    public partial class cms_content
    {
        /// <summary>
        /// 编号
        /// </summary>
        [IsId]
        [IsDBField]
        public int id { get; set; }
        /// <summary>
        /// 所属栏目ID
        /// </summary>
        [IsDBField]
        public int? channelId { get; set; }
        /// <summary>
        /// 标题
        /// </summary>
        [IsDBField]
        public string title { get; set; }
        /// <summary>
        /// 内容
        /// </summary>
        [IsDBField]
        public string contents { get; set; }
        /// <summary>
        /// 作者
        /// </summary>
        [IsDBField]
        public string author { get; set; }
        /// <summary>
        /// 阅读次数
        /// </summary>
        [IsDBField]
        public int? readCount { get; set; }
        /// <summary>
        /// 发布时间
        /// </summary>
        [IsDBField]
        public DateTime? publishTime { get; set; }
        /// <summary>
        /// 发布者
        /// </summary>
        [IsDBField]
        public int? publishUserId { get; set; }
        /// <summary>
        /// 审核(0待审1通过2不通过)
        /// </summary>
        [IsDBField]
        public int? audit { get; set; }
        /// <summary>
        /// 审核人
        /// </summary>
        [IsDBField]
        public int? auditUserId { get; set; }
        /// <summary>
        /// 审核时间
        /// </summary>
        [IsDBField]
        public DateTime? auditTime { get; set; }
        /// <summary>
        /// 页面关键词
        /// </summary>
        [IsDBField]
        public string keywords { get; set; }
        /// <summary>
        /// 页面描述
        /// </summary>
        [IsDBField]
        public string description { get; set; }
        /// <summary>
        /// 页面链接
        /// </summary>
        [IsDBField]
        public string pageUrl { get; set; }
        /// <summary>
        /// 内容封面
        /// </summary>
        [IsDBField]
        public string imgUrl { get; set; }
        /// <summary>
        /// 是否链接(0否1是)
        /// </summary>
        [IsDBField]
        public int? isPageUrl { get; set; }
        /// <summary>
        /// 模板(模板文件名,例:content.html)
        /// </summary>
        [IsDBField]
        public string template { get; set; }
        /// <summary>
        /// 推荐(1推荐0不推荐)
        /// </summary>
        [IsDBField]
        public int? recommend { get; set; }
    }
}

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/// <summary>
/// 删除
/// </summary>
public void BatchDelete(string ids)
{
    dbHelper.BatchDelete<BS_Template>(ids);
}
/// <summary>
/// 删除
/// </summary>
public void BatchDelete(string ids)
{
    dbHelper.BatchDelete<BS_Template>(ids);
}

ExtModels示例:

ExtModels示例:

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    依据条件删除:

    依照规则删除:

using System;
using System.Collections.Generic;
using System.Linq;

namespace Models
{
    /// <summary>
    /// 内容详情
    /// </summary>
    public partial class cms_content
    {
        /// <summary>
        /// 栏目名称
        /// </summary>
        public string channelName { get; set; }
        /// <summary>
        /// 用户显示名
        /// </summary>
        public string showName { get; set; }
        /// <summary>
        /// 审核状态
        /// </summary>
        public string dispAudit
        {
            get
            {
                switch (this.audit ?? 0)
                {
                    case 0:
                        return "待审核";
                    case 1:
                        return "审核通过";
                    case 2:
                        return "审核不通过";
                }
                return "error";
            }
            set { }
        }
        /// <summary>
        /// 在当前页中的索引
        /// </summary>
        public int curPageSort { get; set; }
        /// <summary>
        /// 是否为空,模板使用,0不为空1为空
        /// </summary>
        public int isNull { get; set; }
    }
}
using System;
using System.Collections.Generic;
using System.Linq;

namespace Models
{
    /// <summary>
    /// 内容详情
    /// </summary>
    public partial class cms_content
    {
        /// <summary>
        /// 栏目名称
        /// </summary>
        public string channelName { get; set; }
        /// <summary>
        /// 用户显示名
        /// </summary>
        public string showName { get; set; }
        /// <summary>
        /// 审核状态
        /// </summary>
        public string dispAudit
        {
            get
            {
                switch (this.audit ?? 0)
                {
                    case 0:
                        return "待审核";
                    case 1:
                        return "审核通过";
                    case 2:
                        return "审核不通过";
                }
                return "error";
            }
            set { }
        }
        /// <summary>
        /// 在当前页中的索引
        /// </summary>
        public int curPageSort { get; set; }
        /// <summary>
        /// 是否为空,模板使用,0不为空1为空
        /// </summary>
        public int isNull { get; set; }
    }
}

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/// <summary>
/// 删除
/// </summary>
public void Delete(string conditions)
{
    dbHelper.Delete<BS_Template>(conditions);
}
/// <summary>
/// 删除
/// </summary>
public void Delete(string conditions)
{
    dbHelper.Delete<BS_Template>(conditions);
}

怎么着采用:

怎么使用:

View Code

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评释:支持参数化的增加和删除改查,推荐应用参数化的增加和删除改查;非参数化的增加和删除改查过滤了有的数据库器重字防止范SQL注入,但或者依旧不安全。上边例子中的加多、修改、依据ID删除、遵照ID集结批量删减都以参数化的,示例中的查询和其余格局的删除不是参数化的,DBHelper提供了相关的参数化查询和进行SQL。

证实:协理参数化的增加和删除改查,推荐使用参数化的增加和删除改查;非参数化的增加和删除改查过滤了部分数据库重点字以制止SQL注入,但大概照旧不安全。上面例子中的增多、修改、依据ID删除、根据ID集结批量剔除都以参数化的,示例中的查询和其它方法的去除不是参数化的,DBHelper提供了有关的参数化查询和实行SQL。

   
获取最大ID(当然,ID一般选择自增,对于并发量极少的种类,或单机系统,为了省事,能够如此做):

   
获取最大ID(当然,ID一般选拔自增,对于并发量极少的类别,或单机系统,为了省事,能够如此做):

添加:

添加:

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/// <summary>
/// GetMaxId
/// </summary>
public int GetMaxId()
{
    return dbHelper.GetMaxID<BS_Template>("id");
}
/// <summary>
/// GetMaxId
/// </summary>
public int GetMaxId()
{
    return dbHelper.GetMaxID<BS_Template>("id");
}
/// <summary>
/// 添加
/// </summary>
public void Insert(object obj)
{
    DBHelper.Insert(obj);
}
/// <summary>
/// 添加
/// </summary>
public void Insert(object obj)
{
    DBHelper.Insert(obj);
}

View Code

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    依照条件查询实体:

    依据规则查询实体:

注明:SQL
Server数据库能够动用自增,Oracle数据库能够动用Sequence,小系统可以选用DBHelper自带的Get马克斯ID方法。

表明:SQL
Server数据库可以利用自增,Oracle数据库能够采取Sequence,小系统能够运用DBHelper自带的GetMaxID方法。

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得到最大ID(当然,ID一般采取自增,对于并发量极少的种类,或单机系统,为了便利,能够那样做):

获得最大ID(当然,ID一般选拔自增,对于并发量极少的系统,或单机系统,为了便利,能够那样做):

public BS_Template Get(string typeCode, Enums.TemplateType templateType)
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select *
        from BS_Template 
        where typeCode='{0}' 
        and type='{1}'", typeCode, (int)templateType));
    return dbHelper.FindBySql<BS_Template>(sql.ToString());
}
public BS_Template Get2(string templateId, Enums.TemplateType templateType)
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select *
        from BS_Template 
        where id='{0}' 
        and type='{1}'", templateId, (int)templateType));
    return dbHelper.FindBySql<BS_Template>(sql.ToString());
}
public BS_Template Get(string typeCode, Enums.TemplateType templateType)
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select *
        from BS_Template 
        where typeCode='{0}' 
        and type='{1}'", typeCode, (int)templateType));
    return dbHelper.FindBySql<BS_Template>(sql.ToString());
}
public BS_Template Get2(string templateId, Enums.TemplateType templateType)
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select *
        from BS_Template 
        where id='{0}' 
        and type='{1}'", templateId, (int)templateType));
    return dbHelper.FindBySql<BS_Template>(sql.ToString());
}

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/// <summary>
/// GetMaxId
/// </summary>
public int GetMaxId()
{
    return DBHelper.GetMaxID<BS_Template>("id");
}
/// <summary>
/// GetMaxId
/// </summary>
public int GetMaxId()
{
    return DBHelper.GetMaxID<BS_Template>("id");
}

    依据ID查询实体:

    根据ID查询实体:

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修改:

修改:

public BS_Test Get(string id)
{
    return dbHelper.FindById<BS_Test>(id);
}
public BS_Test Get(string id)
{
    return dbHelper.FindById<BS_Test>(id);
}

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/// <summary>
/// 修改
/// </summary>
public void Update(object obj)
{
    DBHelper.Update(obj);
}
/// <summary>
/// 修改
/// </summary>
public void Update(object obj)
{
    DBHelper.Update(obj);
}

    查询列表:

    查询列表:

View Code

View Code

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删除:

删除:

/// <summary>
/// 查询列表
/// </summary>
public List<BS_Test> GetList(string name)
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select *
        from BS_Test t
        where 1=1 "));

    if (!string.IsNullOrWhiteSpace(name))
    {
        sql.AppendFormat(" and t.name like '%{0}%'", name);
    }

    return dbHelper.FindListBySql<BS_Test>(sql.ToString());
}
/// <summary>
/// 查询列表
/// </summary>
public List<BS_Test> GetList(string name)
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select *
        from BS_Test t
        where 1=1 "));

    if (!string.IsNullOrWhiteSpace(name))
    {
        sql.AppendFormat(" and t.name like '%{0}%'", name);
    }

    return dbHelper.FindListBySql<BS_Test>(sql.ToString());
}

根据ID删除:

根据ID删除:

View Code

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    分页查询列表:

    分页查询列表:

/// <summary>
/// 删除
/// </summary>
public void Del(int id)
{
    DBHelper.Delete<BS_Template>(id);
}
/// <summary>
/// 删除
/// </summary>
public void Del(int id)
{
    DBHelper.Delete<BS_Template>(id);
}

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/// <summary>
/// 分页获取模板集合
/// </summary>
public List<BS_Template> GetList(ref PagerModel pager, string noticeType, string coreType, string name, Enums.TemplateType templateType)
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select *
        from BS_Template t
        where 1=1 "));

    if (!string.IsNullOrWhiteSpace(noticeType))
    {
        sql.AppendFormat(" and nt.name like '%{0}%'", noticeType);
    }

    if (!string.IsNullOrWhiteSpace(coreType))
    {
        sql.AppendFormat(" and ct.name like '%{0}%'", coreType);
    }

    if (!string.IsNullOrWhiteSpace(name))
    {
        sql.AppendFormat(" and t.name like '%{0}%'", name);
    }

    sql.AppendFormat(" and t.type = '{0}'", (int)templateType);

    string orderby = "order by cast(id as int)";
    pager = dbHelper.FindPageBySql<BS_Template>(sql.ToString(), orderby, pager.rows, pager.page);
    return pager.result as List<BS_Template>;
}
/// <summary>
/// 分页获取模板集合
/// </summary>
public List<BS_Template> GetList(ref PagerModel pager, string noticeType, string coreType, string name, Enums.TemplateType templateType)
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select *
        from BS_Template t
        where 1=1 "));

    if (!string.IsNullOrWhiteSpace(noticeType))
    {
        sql.AppendFormat(" and nt.name like '%{0}%'", noticeType);
    }

    if (!string.IsNullOrWhiteSpace(coreType))
    {
        sql.AppendFormat(" and ct.name like '%{0}%'", coreType);
    }

    if (!string.IsNullOrWhiteSpace(name))
    {
        sql.AppendFormat(" and t.name like '%{0}%'", name);
    }

    sql.AppendFormat(" and t.type = '{0}'", (int)templateType);

    string orderby = "order by cast(id as int)";
    pager = dbHelper.FindPageBySql<BS_Template>(sql.ToString(), orderby, pager.rows, pager.page);
    return pager.result as List<BS_Template>;
}

依据ID集结批量剔除:

基于ID集结批量刨除:

View Code

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    完整DAL:

金沙注册送58 ,    完整DAL:

/// <summary>
/// 删除
/// </summary>
public void BatchDelete(string ids)
{
    DBHelper.BatchDelete<BS_Template>(ids);
}
/// <summary>
/// 删除
/// </summary>
public void BatchDelete(string ids)
{
    DBHelper.BatchDelete<BS_Template>(ids);
}

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DBUtil;
using Models;

namespace DAL
{
    /// <summary>
    /// 模板
    /// </summary>
    public class TemplateDal
    {
        #region 变量
        private DBHelper dbHelper = new DBHelper();
        #endregion

        #region 分页获取模板集合
        /// <summary>
        /// 分页获取模板集合
        /// </summary>
        public List<BS_Template> GetList(ref PagerModel pager, string noticeType, string coreType, string name, Enums.TemplateType templateType)
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select *
                from BS_Template t
                where 1=1 "));

            if (!string.IsNullOrWhiteSpace(noticeType))
            {
                sql.AppendFormat(" and nt.name like '%{0}%'", noticeType);
            }

            if (!string.IsNullOrWhiteSpace(coreType))
            {
                sql.AppendFormat(" and ct.name like '%{0}%'", coreType);
            }

            if (!string.IsNullOrWhiteSpace(name))
            {
                sql.AppendFormat(" and t.name like '%{0}%'", name);
            }

            sql.AppendFormat(" and t.type = '{0}'", (int)templateType);

            string orderby = "order by cast(id as int)";
            pager = dbHelper.FindPageBySql<BS_Template>(sql.ToString(), orderby, pager.rows, pager.page);
            return pager.result as List<BS_Template>;
        }
        #endregion

        #region 获取字段关联模板集合
        /// <summary>
        /// 获取字段关联模板集合
        /// </summary>
        public List<BS_Template> GetList(string fieldId)
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select *
                from BS_Template t
                left join BS_TplFieldRelation r on r.templateId=t.id
                left join BS_TplField f on f.id=r.fieldId  
                where f.id='{0}'", fieldId));
            return dbHelper.FindListBySql<BS_Template>(sql.ToString());
        }
        #endregion

        #region 获取
        public BS_Template Get(string typeCode, Enums.TemplateType templateType)
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select *
                from BS_Template 
                where typeCode='{0}' 
                and type='{1}'", typeCode, (int)templateType));
            return dbHelper.FindBySql<BS_Template>(sql.ToString());
        }
        public BS_Template Get2(string templateId, Enums.TemplateType templateType)
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select *
                from BS_Template 
                where id='{0}' 
                and type='{1}'", templateId, (int)templateType));
            return dbHelper.FindBySql<BS_Template>(sql.ToString());
        }
        #endregion

        #region GetMaxId
        /// <summary>
        /// GetMaxId
        /// </summary>
        public int GetMaxId()
        {
            return dbHelper.GetMaxID<BS_Template>("id");
        }
        #endregion

        #region 添加
        /// <summary>
        /// 添加
        /// </summary>
        public void Insert(object obj)
        {
            dbHelper.Insert(obj);
        }
        #endregion

        #region 修改
        /// <summary>
        /// 修改
        /// </summary>
        public void Update(object obj)
        {
            dbHelper.Update(obj);
        }
        #endregion

        #region 删除
        /// <summary>
        /// 删除
        /// </summary>
        public void Del(int id)
        {
            dbHelper.Delete<BS_Template>(id);
        }
        /// <summary>
        /// 删除
        /// </summary>
        public void BatchDelete(string ids)
        {
            dbHelper.BatchDelete<BS_Template>(ids);
        }
        /// <summary>
        /// 删除
        /// </summary>
        public void Delete(string conditions)
        {
            dbHelper.Delete<BS_Template>(conditions);
        }
        #endregion

    }
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DBUtil;
using Models;

namespace DAL
{
    /// <summary>
    /// 模板
    /// </summary>
    public class TemplateDal
    {
        #region 变量
        private DBHelper dbHelper = new DBHelper();
        #endregion

        #region 分页获取模板集合
        /// <summary>
        /// 分页获取模板集合
        /// </summary>
        public List<BS_Template> GetList(ref PagerModel pager, string noticeType, string coreType, string name, Enums.TemplateType templateType)
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select *
                from BS_Template t
                where 1=1 "));

            if (!string.IsNullOrWhiteSpace(noticeType))
            {
                sql.AppendFormat(" and nt.name like '%{0}%'", noticeType);
            }

            if (!string.IsNullOrWhiteSpace(coreType))
            {
                sql.AppendFormat(" and ct.name like '%{0}%'", coreType);
            }

            if (!string.IsNullOrWhiteSpace(name))
            {
                sql.AppendFormat(" and t.name like '%{0}%'", name);
            }

            sql.AppendFormat(" and t.type = '{0}'", (int)templateType);

            string orderby = "order by cast(id as int)";
            pager = dbHelper.FindPageBySql<BS_Template>(sql.ToString(), orderby, pager.rows, pager.page);
            return pager.result as List<BS_Template>;
        }
        #endregion

        #region 获取字段关联模板集合
        /// <summary>
        /// 获取字段关联模板集合
        /// </summary>
        public List<BS_Template> GetList(string fieldId)
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select *
                from BS_Template t
                left join BS_TplFieldRelation r on r.templateId=t.id
                left join BS_TplField f on f.id=r.fieldId  
                where f.id='{0}'", fieldId));
            return dbHelper.FindListBySql<BS_Template>(sql.ToString());
        }
        #endregion

        #region 获取
        public BS_Template Get(string typeCode, Enums.TemplateType templateType)
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select *
                from BS_Template 
                where typeCode='{0}' 
                and type='{1}'", typeCode, (int)templateType));
            return dbHelper.FindBySql<BS_Template>(sql.ToString());
        }
        public BS_Template Get2(string templateId, Enums.TemplateType templateType)
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select *
                from BS_Template 
                where id='{0}' 
                and type='{1}'", templateId, (int)templateType));
            return dbHelper.FindBySql<BS_Template>(sql.ToString());
        }
        #endregion

        #region GetMaxId
        /// <summary>
        /// GetMaxId
        /// </summary>
        public int GetMaxId()
        {
            return dbHelper.GetMaxID<BS_Template>("id");
        }
        #endregion

        #region 添加
        /// <summary>
        /// 添加
        /// </summary>
        public void Insert(object obj)
        {
            dbHelper.Insert(obj);
        }
        #endregion

        #region 修改
        /// <summary>
        /// 修改
        /// </summary>
        public void Update(object obj)
        {
            dbHelper.Update(obj);
        }
        #endregion

        #region 删除
        /// <summary>
        /// 删除
        /// </summary>
        public void Del(int id)
        {
            dbHelper.Delete<BS_Template>(id);
        }
        /// <summary>
        /// 删除
        /// </summary>
        public void BatchDelete(string ids)
        {
            dbHelper.BatchDelete<BS_Template>(ids);
        }
        /// <summary>
        /// 删除
        /// </summary>
        public void Delete(string conditions)
        {
            dbHelper.Delete<BS_Template>(conditions);
        }
        #endregion

    }
}

听别人讲条件删除:

依赖标准删除:

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    查询sql书写规范:

    查询sql书写规范:

/// <summary>
/// 删除
/// </summary>
public void Delete(string conditions)
{
    DBHelper.Delete<BS_Template>(conditions);
}
/// <summary>
/// 删除
/// </summary>
public void Delete(string conditions)
{
    DBHelper.Delete<BS_Template>(conditions);
}

    SQL不可能写的乱7八糟,该换行换行,该对齐对齐,例:

    SQL无法写的乱七八糟,该换行换行,该对齐对齐,例:

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别的措施的去除请使用:

别的方法的删除请使用:

/// <summary>
/// 分页获取模板集合
/// </summary>
public List<BS_Template> GetList(ref PagerModel pager, string noticeType, string coreType, string name, Enums.TemplateType templateType)
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select *
        from BS_Template t
        where 1=1 "));

    if (!string.IsNullOrWhiteSpace(noticeType))
    {
        sql.AppendFormat(" and nt.name like '%{0}%'", noticeType);
    }

    if (!string.IsNullOrWhiteSpace(coreType))
    {
        sql.AppendFormat(" and ct.name like '%{0}%'", coreType);
    }

    if (!string.IsNullOrWhiteSpace(name))
    {
        sql.AppendFormat(" and t.name like '%{0}%'", name);
    }

    sql.AppendFormat(" and t.type = '{0}'", (int)templateType);

    string orderby = "order by cast(id as int)";
    pager = dbHelper.FindPageBySql<BS_Template>(sql.ToString(), orderby, pager.rows, pager.page);
    return pager.result as List<BS_Template>;
}
/// <summary>
/// 分页获取模板集合
/// </summary>
public List<BS_Template> GetList(ref PagerModel pager, string noticeType, string coreType, string name, Enums.TemplateType templateType)
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select *
        from BS_Template t
        where 1=1 "));

    if (!string.IsNullOrWhiteSpace(noticeType))
    {
        sql.AppendFormat(" and nt.name like '%{0}%'", noticeType);
    }

    if (!string.IsNullOrWhiteSpace(coreType))
    {
        sql.AppendFormat(" and ct.name like '%{0}%'", coreType);
    }

    if (!string.IsNullOrWhiteSpace(name))
    {
        sql.AppendFormat(" and t.name like '%{0}%'", name);
    }

    sql.AppendFormat(" and t.type = '{0}'", (int)templateType);

    string orderby = "order by cast(id as int)";
    pager = dbHelper.FindPageBySql<BS_Template>(sql.ToString(), orderby, pager.rows, pager.page);
    return pager.result as List<BS_Template>;
}

public static int ExecuteSql(string sqlString)

public static int ExecuteSql(string sqlString)

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基于ID查询实体:

按照ID查询实体:

    select换行,from换行,join换行,where换行,and换行。

    select换行,from换行,join换行,where换行,and换行。

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public cms_content Get(int id)
{
    return DBHelper.FindById<cms_content>(id.ToString());
}
public cms_content Get(int id)
{
    return DBHelper.FindById<cms_content>(id.ToString());
}

    数据库事务:

    数据库事务:

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查询:

查询:

try
{
    DBHelper.BeginTransaction();

    BS_Template model = new BS_Template();
    model.id = m_TemplateDal.GetMaxId().ToString();
    model.code = k.ToString("0000");
    model.name = "测试" + k.ToString();
    model.remarks = "测试" + k.ToString();
    model.type = ((int)Enums.TemplateType.Notice).ToString();
    m_TemplateDal.Insert(model);
    //throw new Exception("a");

    BS_Test test = new BS_Test();
    test.id = m_TestDal.GetMaxId().ToString();
    test.code = "测试" + k.ToString();
    test.name = "测试" + k.ToString();
    test.remarks = "测试" + k.ToString();
    m_TestDal.Insert(test);

    DBHelper.CommitTransaction();
    MessageBox.Show("成功");
}
catch (Exception ex)
{
    DBHelper.RollbackTransaction();
    MessageBox.Show(ex.Message);
}
try
{
    DBHelper.BeginTransaction();

    BS_Template model = new BS_Template();
    model.id = m_TemplateDal.GetMaxId().ToString();
    model.code = k.ToString("0000");
    model.name = "测试" + k.ToString();
    model.remarks = "测试" + k.ToString();
    model.type = ((int)Enums.TemplateType.Notice).ToString();
    m_TemplateDal.Insert(model);
    //throw new Exception("a");

    BS_Test test = new BS_Test();
    test.id = m_TestDal.GetMaxId().ToString();
    test.code = "测试" + k.ToString();
    test.name = "测试" + k.ToString();
    test.remarks = "测试" + k.ToString();
    m_TestDal.Insert(test);

    DBHelper.CommitTransaction();
    MessageBox.Show("成功");
}
catch (Exception ex)
{
    DBHelper.RollbackTransaction();
    MessageBox.Show(ex.Message);
}

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public List<cms_content> GetListAll()
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select content.*, channel.title as channelName, user.showName
        from cms_content content
        left join cms_channel channel on channel.id=content.channelId
        left join CMS_sys_user user on user.id=content.publishUserId
        where content.audit=1 
        order by publishTime desc,id desc"));

    return DBHelper.FindListBySql<cms_content>(sql.ToString());
}
public List<cms_content> GetListAll()
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select content.*, channel.title as channelName, user.showName
        from cms_content content
        left join cms_channel channel on channel.id=content.channelId
        left join CMS_sys_user user on user.id=content.publishUserId
        where content.audit=1 
        order by publishTime desc,id desc"));

    return DBHelper.FindListBySql<cms_content>(sql.ToString());
}

 

 

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    代码下载:

    代码下载:

证实:ExtModels下的恢弘Model,能够补协助调查询数据库中不存在的字段,并映射填充到实体类。

表明:ExtModels下的扩展Model,能够辅协助调查询数据库中不存在的字段,并映射填充到实体类。

   
Model生成器下载:

   
Model生成器下载:

分页查询:

分页查询:

 

 

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public List<cms_content> GetList(ref PagerModel pager, int channelId, string title, int audit)
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select content.*, channel.title as channelName, user.showName
        from cms_content content
        left join cms_channel channel on channel.id=content.channelId
        left join CMS_sys_user user on user.id=content.publishUserId
        where 1=1 "));

    if (channelId != -1)
    {
        sql.AppendFormat(" and content.channelId = {0}", channelId);
    }
    if (!string.IsNullOrWhiteSpace(title))
    {
        sql.AppendFormat(" and content.title like '%{0}%'", title);
    }
    if (audit != -1)
    {
        sql.AppendFormat(" and content.audit = {0}", audit);
    }

    string orderby = string.Format("order by content.publishTime desc,id desc");
    pager = DBHelper.FindPageBySql<cms_content>(sql.ToString(), orderby, pager.rows, pager.page);
    return pager.result as List<cms_content>;
}
public List<cms_content> GetList(ref PagerModel pager, int channelId, string title, int audit)
{
    StringBuilder sql = new StringBuilder(string.Format(@"
        select content.*, channel.title as channelName, user.showName
        from cms_content content
        left join cms_channel channel on channel.id=content.channelId
        left join CMS_sys_user user on user.id=content.publishUserId
        where 1=1 "));

    if (channelId != -1)
    {
        sql.AppendFormat(" and content.channelId = {0}", channelId);
    }
    if (!string.IsNullOrWhiteSpace(title))
    {
        sql.AppendFormat(" and content.title like '%{0}%'", title);
    }
    if (audit != -1)
    {
        sql.AppendFormat(" and content.audit = {0}", audit);
    }

    string orderby = string.Format("order by content.publishTime desc,id desc");
    pager = DBHelper.FindPageBySql<cms_content>(sql.ToString(), orderby, pager.rows, pager.page);
    return pager.result as List<cms_content>;
}

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数据库事务:

数据库事务:

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try
{
    DBHelper.BeginTransaction(); //开启数据库事务

    //在这里写增删改操作

    DBHelper.CommitTransaction(); //提交数据库事务
}catch(Exception ex)
{
    DBHelper.RollbackTransaction(); //回滚数据库事务
}
try
{
    DBHelper.BeginTransaction(); //开启数据库事务

    //在这里写增删改操作

    DBHelper.CommitTransaction(); //提交数据库事务
}catch(Exception ex)
{
    DBHelper.RollbackTransaction(); //回滚数据库事务
}

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DAL层增加和删除改查示例:

DAL层增加和删除改查示例:

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using DBUtil;
using Models;

namespace DAL
{
    /// <summary>
    /// 内容详情管理
    /// </summary>
    public class ContentDal
    {
        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        public List<cms_content> GetList(ref PagerModel pager, int channelId, string title, int audit)
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select content.*, channel.title as channelName, user.showName
                from cms_content content
                left join cms_channel channel on channel.id=content.channelId
                left join CMS_sys_user user on user.id=content.publishUserId
                where 1=1 "));

            if (channelId != -1)
            {
                sql.AppendFormat(" and content.channelId = {0}", channelId);
            }
            if (!string.IsNullOrWhiteSpace(title))
            {
                sql.AppendFormat(" and content.title like '%{0}%'", title);
            }
            if (audit != -1)
            {
                sql.AppendFormat(" and content.audit = {0}", audit);
            }

            string orderby = string.Format("order by content.publishTime desc,id desc");
            pager = DBHelper.FindPageBySql<cms_content>(sql.ToString(), orderby, pager.rows, pager.page);
            return pager.result as List<cms_content>;
        }
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        /// <param name="pager">分页</param>
        /// <param name="channel">栏目,可以是栏目ID或栏目名称</param>
        /// <param name="where">where语句</param>
        public List<cms_content> GetList(ref PagerModel pager, string channel, string where)
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select content.*, channel.title as channelName, user.showName
                from cms_content content
                left join cms_channel channel on channel.id=content.channelId
                left join CMS_sys_user user on user.id=content.publishUserId
                where content.audit=1 "));

            if (!string.IsNullOrWhiteSpace(where))
            {
                sql.AppendFormat(" and {0}", where);
            }

            if (!string.IsNullOrWhiteSpace(channel))
            {
                ChannelDal channelDal = new ChannelDal();
                if (Regex.IsMatch(channel, @"^\d+$")) //数字,即栏目ID
                {
                    string channelIds = channelDal.GetChildIds(Convert.ToInt32(channel));
                    sql.AppendFormat(" and channelId in ({0})", channelIds);
                }
                else //非数字,即栏目名称
                {
                    string channelIds = channelDal.GetChildIds(channel);
                    sql.AppendFormat(" and channelId in ({0})", channelIds);
                }
            }

            string orderby = string.Format("order by publishTime desc,id desc");
            if (pager.rows > 0)
            {
                PagerModel pagerModel = DBHelper.FindPageBySql<cms_content>(sql.ToString(), orderby, pager.rows, pager.page);
                pager.totalRows = pagerModel.totalRows;
                pager.result = pagerModel.result;
                List<cms_content> list = pagerModel.result as List<cms_content>;
                int i = 1;
                list.ForEach(a =>
                {
                    a.curPageSort = i++;
                });
                return pagerModel.result as List<cms_content>;
            }
            else
            {
                return DBHelper.FindListBySql<cms_content>(sql.ToString() + orderby);
            }
        }
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        public List<cms_content> GetListAll()
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select content.*, channel.title as channelName, user.showName
                from cms_content content
                left join cms_channel channel on channel.id=content.channelId
                left join CMS_sys_user user on user.id=content.publishUserId
                where content.audit=1 
                order by publishTime desc,id desc"));

            return DBHelper.FindListBySql<cms_content>(sql.ToString());
        }
        #endregion

        #region 获取总数
        /// <summary>
        /// 获取总数
        /// </summary>
        public int GetAllCount()
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select count(*)
                from cms_content content
                where content.audit=1"));

            return Convert.ToInt32(DBHelper.GetSingle(sql.ToString()));
        }
        #endregion

        #region 获取
        /// <summary>
        /// 获取
        /// </summary>
        public cms_content Get(int id)
        {
            return DBHelper.FindById<cms_content>(id.ToString());
        }
        /// <summary>
        /// 根据channelId获取一条内容详情
        /// </summary>
        public cms_content GetByChannelId(int channelId)
        {
            return DBHelper.FindBySql<cms_content>(string.Format("select * from cms_content where channelId={0} and audit=1", channelId));
        }
        /// <summary>
        /// 获取
        /// </summary>
        public cms_content GetNext(int id)
        {
            cms_content current = Get(id);
            return DBHelper.FindBySql<cms_content>(string.Format("select * from cms_content where id<{0} and channelId={1} and audit=1 order by id desc limit 0,1", current.id, current.channelId));
        }
        /// <summary>
        /// 获取
        /// </summary>
        public cms_content GetPre(int id)
        {
            cms_content current = Get(id);
            return DBHelper.FindBySql<cms_content>(string.Format("select * from cms_content where id>{0} and channelId={1} and audit=1 order by id asc limit 0,1", current.id, current.channelId));
        }
        #endregion

        #region 添加
        /// <summary>
        /// 添加
        /// </summary>
        public void Insert(cms_content model)
        {
            model.id = DBHelper.GetMaxID<cms_content>("id");
            DBHelper.Insert(model);
        }
        #endregion

        #region 修改
        /// <summary>
        /// 修改
        /// </summary>
        public void Update(cms_content model)
        {
            DBHelper.Update(model);
        }
        #endregion

        #region 删除
        /// <summary>
        /// 删除
        /// </summary>
        public void Del(string ids)
        {
            DBHelper.BatchDelete<cms_content>(ids);
        }
        #endregion

    }
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using DBUtil;
using Models;

namespace DAL
{
    /// <summary>
    /// 内容详情管理
    /// </summary>
    public class ContentDal
    {
        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        public List<cms_content> GetList(ref PagerModel pager, int channelId, string title, int audit)
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select content.*, channel.title as channelName, user.showName
                from cms_content content
                left join cms_channel channel on channel.id=content.channelId
                left join CMS_sys_user user on user.id=content.publishUserId
                where 1=1 "));

            if (channelId != -1)
            {
                sql.AppendFormat(" and content.channelId = {0}", channelId);
            }
            if (!string.IsNullOrWhiteSpace(title))
            {
                sql.AppendFormat(" and content.title like '%{0}%'", title);
            }
            if (audit != -1)
            {
                sql.AppendFormat(" and content.audit = {0}", audit);
            }

            string orderby = string.Format("order by content.publishTime desc,id desc");
            pager = DBHelper.FindPageBySql<cms_content>(sql.ToString(), orderby, pager.rows, pager.page);
            return pager.result as List<cms_content>;
        }
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        /// <param name="pager">分页</param>
        /// <param name="channel">栏目,可以是栏目ID或栏目名称</param>
        /// <param name="where">where语句</param>
        public List<cms_content> GetList(ref PagerModel pager, string channel, string where)
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select content.*, channel.title as channelName, user.showName
                from cms_content content
                left join cms_channel channel on channel.id=content.channelId
                left join CMS_sys_user user on user.id=content.publishUserId
                where content.audit=1 "));

            if (!string.IsNullOrWhiteSpace(where))
            {
                sql.AppendFormat(" and {0}", where);
            }

            if (!string.IsNullOrWhiteSpace(channel))
            {
                ChannelDal channelDal = new ChannelDal();
                if (Regex.IsMatch(channel, @"^\d+$")) //数字,即栏目ID
                {
                    string channelIds = channelDal.GetChildIds(Convert.ToInt32(channel));
                    sql.AppendFormat(" and channelId in ({0})", channelIds);
                }
                else //非数字,即栏目名称
                {
                    string channelIds = channelDal.GetChildIds(channel);
                    sql.AppendFormat(" and channelId in ({0})", channelIds);
                }
            }

            string orderby = string.Format("order by publishTime desc,id desc");
            if (pager.rows > 0)
            {
                PagerModel pagerModel = DBHelper.FindPageBySql<cms_content>(sql.ToString(), orderby, pager.rows, pager.page);
                pager.totalRows = pagerModel.totalRows;
                pager.result = pagerModel.result;
                List<cms_content> list = pagerModel.result as List<cms_content>;
                int i = 1;
                list.ForEach(a =>
                {
                    a.curPageSort = i++;
                });
                return pagerModel.result as List<cms_content>;
            }
            else
            {
                return DBHelper.FindListBySql<cms_content>(sql.ToString() + orderby);
            }
        }
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        public List<cms_content> GetListAll()
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select content.*, channel.title as channelName, user.showName
                from cms_content content
                left join cms_channel channel on channel.id=content.channelId
                left join CMS_sys_user user on user.id=content.publishUserId
                where content.audit=1 
                order by publishTime desc,id desc"));

            return DBHelper.FindListBySql<cms_content>(sql.ToString());
        }
        #endregion

        #region 获取总数
        /// <summary>
        /// 获取总数
        /// </summary>
        public int GetAllCount()
        {
            StringBuilder sql = new StringBuilder(string.Format(@"
                select count(*)
                from cms_content content
                where content.audit=1"));

            return Convert.ToInt32(DBHelper.GetSingle(sql.ToString()));
        }
        #endregion

        #region 获取
        /// <summary>
        /// 获取
        /// </summary>
        public cms_content Get(int id)
        {
            return DBHelper.FindById<cms_content>(id.ToString());
        }
        /// <summary>
        /// 根据channelId获取一条内容详情
        /// </summary>
        public cms_content GetByChannelId(int channelId)
        {
            return DBHelper.FindBySql<cms_content>(string.Format("select * from cms_content where channelId={0} and audit=1", channelId));
        }
        /// <summary>
        /// 获取
        /// </summary>
        public cms_content GetNext(int id)
        {
            cms_content current = Get(id);
            return DBHelper.FindBySql<cms_content>(string.Format("select * from cms_content where id<{0} and channelId={1} and audit=1 order by id desc limit 0,1", current.id, current.channelId));
        }
        /// <summary>
        /// 获取
        /// </summary>
        public cms_content GetPre(int id)
        {
            cms_content current = Get(id);
            return DBHelper.FindBySql<cms_content>(string.Format("select * from cms_content where id>{0} and channelId={1} and audit=1 order by id asc limit 0,1", current.id, current.channelId));
        }
        #endregion

        #region 添加
        /// <summary>
        /// 添加
        /// </summary>
        public void Insert(cms_content model)
        {
            model.id = DBHelper.GetMaxID<cms_content>("id");
            DBHelper.Insert(model);
        }
        #endregion

        #region 修改
        /// <summary>
        /// 修改
        /// </summary>
        public void Update(cms_content model)
        {
            DBHelper.Update(model);
        }
        #endregion

        #region 删除
        /// <summary>
        /// 删除
        /// </summary>
        public void Del(string ids)
        {
            DBHelper.BatchDelete<cms_content>(ids);
        }
        #endregion

    }
}

View Code

View Code

事例代码下载:

事例代码下载:

表明:例子程序是Winform,该DBHelper也适用于Web项目。

注明:例子程序是Winform,该DBHelper也适用于Web项目。

配套Model生成器下载:

配套Model生成器下载:

倘诺您不亮堂作者何以要写DBHelper,为啥未有语法糖,为啥查询和分页查询要利用原生SQL,看看上面大家ERP项目中的代码,你会理解,当然,这些体系规划的的确倒霉:

一经您不清楚自个儿干什么要写DBHelper,为啥未有语法糖,为啥查询和分页查询要运用原生SQL,看看下边大家ERP项目中的代码,你会理解,当然,那一个项目设计的实在倒霉:

1、

1、

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/// <summary>
/// 统计SQL
/// </summary>
public override string GetReportSql(string formData)
{
    ProductInvoiceModel search = JsonConvert.DeserializeObject<ProductInvoiceModel>(formData);

    StringBuilder sql = new StringBuilder(string.Format(@"
        select * from 
        (select distinct 
        '出库单' as '报表类型',
        pos.billNo as '单据编号',
        pos.projectCode as '项目编号',
        pro.projectName as '项目名称',
        ma.subProject as '项目子项',

        case when cs.conMemberCode is not NULL then cs.conMemberCode else mat.materialCode end as '构件编码',
        case when cmd.memberName is not NULL then cmd.memberName else mat.materialName end as '材料名称',
        case when cs.conMemberCode is not NULL then '构件' else '物料' end as '类型',

        mad.model as '规格型号',
        dic1.dicItem as '单位',
        posd.qty as '数量',

        CONVERT(varchar(100), pos.billDate, 23) as '日期'

        from Pro_ProductOutStorageDet posd
        left join Pro_ProductOutStorage pos on pos.id=posd.parentId

        left join Pro_MatAllotDet mad on posd.matAllotDetId=mad.id
        left join Pro_MatAllot ma on ma.id=mad.parentID and ma.status=2
        left join Pro_MatStock ms on ms.id=mad.matStockId and mad.memberType=1
        left join Pro_ConStock cs on cs.id=mad.matStockId and mad.memberType=0
        left join sys_material mat on mat.materialCode=ms.materailCode

        left join Pro_ProductInstorage pi on pi.billNo=cs.billNo
        left join Pro_ProductInstorageDet pid on pid.parentId=pi.id

        left join Pro_ConMember cm on cm.billCode=pi.conMemberBillNo
        left join Pro_ConMemberDet cmd on cmd.id=pid.conMemberDetId

        left join Pro_Info pro on pos.projectCode=pro.projectNum

        left join sys_dicDetail dic1 on dic1.dicItemcode=mad.unitCode  

        union all

        select distinct 
        'XXX出库单' as '报表类型',
        pos.billNo as '单据编号',
        pos.projectCode as '项目编号',
        pro.projectName as '项目名称',
        '' as '项目子项',

        case when cs.conMemberCode is not NULL then cs.conMemberCode else mat.materialCode end as '构件编码',
        case when cmd.memberName is not NULL then cmd.memberName else mat.materialName end as '材料名称',
        case when cs.conMemberCode is not NULL then '构件' else '物料' end as '类型',

        case when cmd.model is not NULL then cmd.model else mat.model end as '规格型号',
        case when dic1.dicItem  is not NULL then dic1.dicItem  else dic2.dicItem  end as '单位',
        posd.qty as '数量',

        CONVERT(varchar(100), pos.billDate, 23) as '日期'

        from Pro_ProductOut2StorageDet posd
        left join Pro_ProductOut2Storage pos on pos.id=posd.parentId

        left join Pro_MatStock ms on ms.id=posd.matStockId
        left join Pro_ConStock cs on cs.id=posd.conInventoryDetId
        left join sys_material mat on mat.materialCode=ms.materailCode

        left join Pro_ProductInstorage pi on pi.billNo=cs.billNo
        left join Pro_ProductInstorageDet pid on pid.parentId=pi.id

        left join Pro_ConMember cm on cm.billCode=pi.conMemberBillNo
        left join Pro_ConMemberDet cmd on cmd.id=pid.conMemberDetId

        left join Pro_Info pro on pos.projectCode=pro.projectNum

        left join sys_dicDetail dic1 on dic1.dicItemcode=mat.unitCode  
        left join sys_dicDetail dic2 on dic2.dicItemcode=cmd.qtyUnit  

        union all

        select distinct 
        '生产消耗单' as '报表类型',
        pc.billCode as '单据编号',
        pro.projectNum as '项目编号',
        pro.projectName as '项目名称',
        ll.subProject as '项目子项',

        case when cs.conMemberCode is not NULL then cs.conMemberCode else mat.materialCode end as '构件编码',
        case when cmd.memberName is not NULL then cmd.memberName else mat.materialName end as '材料名称',
        case when cs.conMemberCode is not NULL then '构件' else '物料' end as '类型',

        case when cmd.model is not NULL then cmd.model else mat.model end as '规格型号',
        case when dic1.dicItem  is not NULL then dic1.dicItem  else dic2.dicItem  end as '单位',
        pcd.consumeQty as '数量',

        CONVERT(varchar(100), pc.billDate, 23) as '日期'

        from Pro_ProductConsume pc
        left join Pro_ProductConsumeDet pcd on pcd.parentId=pc.id

        left join Pro_LingLiaoDet lld on lld.id=pcd.lingLiaoDetId
        left join Pro_LingLiao ll on ll.id=lld.parentId

        left join Pro_MatStock ms on ms.id=lld.matStockId and lld.memberType=1
        left join Pro_ConStock cs on cs.id=lld.matStockId and lld.memberType=0
        left join sys_material mat on mat.materialCode=ms.materailCode

        left join Pro_ProductInstorage pi on pi.billNo=cs.billNo
        left join Pro_ProductInstorageDet pid on pid.parentId=pi.id

        left join Pro_ConMember cm on cm.billCode=pi.conMemberBillNo
        left join Pro_ConMemberDet cmd on cmd.id=pid.conMemberDetId

        left join Pro_ProTask pt on pt.billCode=ll.proTaskCode
        left join Pro_Info pro on pt.proInfCode=pro.billCode

        left join sys_dicDetail dic1 on dic1.dicItemcode=mat.unitCode  
        left join sys_dicDetail dic2 on dic2.dicItemcode=cmd.qtyUnit  
        ) T where 1=1 "));

    if (!string.IsNullOrEmpty(search.projectName))
    {
        sql.AppendFormat("  and T.项目名称 like '%{0}%' ", search.projectName.Trim());
    }
    if (!string.IsNullOrEmpty(search.projectCode))
    {
        sql.AppendFormat("  and T.项目编号 like '%{0}%' ", search.projectCode.Trim());
    }
    if (!string.IsNullOrEmpty(search.btime) && !string.IsNullOrEmpty(search.etime))
    {
        sql.AppendFormat(" and  T.日期  >=  '{0}'", search.btime);
    }
    if (!string.IsNullOrEmpty(search.etime))
    {
        sql.AppendFormat(" and  T.日期  <=  '{0}'", search.etime);
    }

    return sql.ToString();
}
/// <summary>
/// 统计SQL
/// </summary>
public override string GetReportSql(string formData)
{
    ProductInvoiceModel search = JsonConvert.DeserializeObject<ProductInvoiceModel>(formData);

    StringBuilder sql = new StringBuilder(string.Format(@"
        select * from 
        (select distinct 
        '出库单' as '报表类型',
        pos.billNo as '单据编号',
        pos.projectCode as '项目编号',
        pro.projectName as '项目名称',
        ma.subProject as '项目子项',

        case when cs.conMemberCode is not NULL then cs.conMemberCode else mat.materialCode end as '构件编码',
        case when cmd.memberName is not NULL then cmd.memberName else mat.materialName end as '材料名称',
        case when cs.conMemberCode is not NULL then '构件' else '物料' end as '类型',

        mad.model as '规格型号',
        dic1.dicItem as '单位',
        posd.qty as '数量',

        CONVERT(varchar(100), pos.billDate, 23) as '日期'

        from Pro_ProductOutStorageDet posd
        left join Pro_ProductOutStorage pos on pos.id=posd.parentId

        left join Pro_MatAllotDet mad on posd.matAllotDetId=mad.id
        left join Pro_MatAllot ma on ma.id=mad.parentID and ma.status=2
        left join Pro_MatStock ms on ms.id=mad.matStockId and mad.memberType=1
        left join Pro_ConStock cs on cs.id=mad.matStockId and mad.memberType=0
        left join sys_material mat on mat.materialCode=ms.materailCode

        left join Pro_ProductInstorage pi on pi.billNo=cs.billNo
        left join Pro_ProductInstorageDet pid on pid.parentId=pi.id

        left join Pro_ConMember cm on cm.billCode=pi.conMemberBillNo
        left join Pro_ConMemberDet cmd on cmd.id=pid.conMemberDetId

        left join Pro_Info pro on pos.projectCode=pro.projectNum

        left join sys_dicDetail dic1 on dic1.dicItemcode=mad.unitCode  

        union all

        select distinct 
        'XXX出库单' as '报表类型',
        pos.billNo as '单据编号',
        pos.projectCode as '项目编号',
        pro.projectName as '项目名称',
        '' as '项目子项',

        case when cs.conMemberCode is not NULL then cs.conMemberCode else mat.materialCode end as '构件编码',
        case when cmd.memberName is not NULL then cmd.memberName else mat.materialName end as '材料名称',
        case when cs.conMemberCode is not NULL then '构件' else '物料' end as '类型',

        case when cmd.model is not NULL then cmd.model else mat.model end as '规格型号',
        case when dic1.dicItem  is not NULL then dic1.dicItem  else dic2.dicItem  end as '单位',
        posd.qty as '数量',

        CONVERT(varchar(100), pos.billDate, 23) as '日期'

        from Pro_ProductOut2StorageDet posd
        left join Pro_ProductOut2Storage pos on pos.id=posd.parentId

        left join Pro_MatStock ms on ms.id=posd.matStockId
        left join Pro_ConStock cs on cs.id=posd.conInventoryDetId
        left join sys_material mat on mat.materialCode=ms.materailCode

        left join Pro_ProductInstorage pi on pi.billNo=cs.billNo
        left join Pro_ProductInstorageDet pid on pid.parentId=pi.id

        left join Pro_ConMember cm on cm.billCode=pi.conMemberBillNo
        left join Pro_ConMemberDet cmd on cmd.id=pid.conMemberDetId

        left join Pro_Info pro on pos.projectCode=pro.projectNum

        left join sys_dicDetail dic1 on dic1.dicItemcode=mat.unitCode  
        left join sys_dicDetail dic2 on dic2.dicItemcode=cmd.qtyUnit  

        union all

        select distinct 
        '生产消耗单' as '报表类型',
        pc.billCode as '单据编号',
        pro.projectNum as '项目编号',
        pro.projectName as '项目名称',
        ll.subProject as '项目子项',

        case when cs.conMemberCode is not NULL then cs.conMemberCode else mat.materialCode end as '构件编码',
        case when cmd.memberName is not NULL then cmd.memberName else mat.materialName end as '材料名称',
        case when cs.conMemberCode is not NULL then '构件' else '物料' end as '类型',

        case when cmd.model is not NULL then cmd.model else mat.model end as '规格型号',
        case when dic1.dicItem  is not NULL then dic1.dicItem  else dic2.dicItem  end as '单位',
        pcd.consumeQty as '数量',

        CONVERT(varchar(100), pc.billDate, 23) as '日期'

        from Pro_ProductConsume pc
        left join Pro_ProductConsumeDet pcd on pcd.parentId=pc.id

        left join Pro_LingLiaoDet lld on lld.id=pcd.lingLiaoDetId
        left join Pro_LingLiao ll on ll.id=lld.parentId

        left join Pro_MatStock ms on ms.id=lld.matStockId and lld.memberType=1
        left join Pro_ConStock cs on cs.id=lld.matStockId and lld.memberType=0
        left join sys_material mat on mat.materialCode=ms.materailCode

        left join Pro_ProductInstorage pi on pi.billNo=cs.billNo
        left join Pro_ProductInstorageDet pid on pid.parentId=pi.id

        left join Pro_ConMember cm on cm.billCode=pi.conMemberBillNo
        left join Pro_ConMemberDet cmd on cmd.id=pid.conMemberDetId

        left join Pro_ProTask pt on pt.billCode=ll.proTaskCode
        left join Pro_Info pro on pt.proInfCode=pro.billCode

        left join sys_dicDetail dic1 on dic1.dicItemcode=mat.unitCode  
        left join sys_dicDetail dic2 on dic2.dicItemcode=cmd.qtyUnit  
        ) T where 1=1 "));

    if (!string.IsNullOrEmpty(search.projectName))
    {
        sql.AppendFormat("  and T.项目名称 like '%{0}%' ", search.projectName.Trim());
    }
    if (!string.IsNullOrEmpty(search.projectCode))
    {
        sql.AppendFormat("  and T.项目编号 like '%{0}%' ", search.projectCode.Trim());
    }
    if (!string.IsNullOrEmpty(search.btime) && !string.IsNullOrEmpty(search.etime))
    {
        sql.AppendFormat(" and  T.日期  >=  '{0}'", search.btime);
    }
    if (!string.IsNullOrEmpty(search.etime))
    {
        sql.AppendFormat(" and  T.日期  <=  '{0}'", search.etime);
    }

    return sql.ToString();
}

View Code

View Code

注解:查询SQL书写标准:SQL不能写的乱7八糟,该换行换行,该对齐对齐。

证实:查询SQL书写标准:SQL不可能写的乱7八糟,该换行换行,该对齐对齐。

2、

2、

金沙注册送58 147金沙注册送58 148

金沙注册送58 149金沙注册送58 150

        public List<MatAllotModel> GeProMatAllotList(ref PagerModel pager, string billCode, string projectNum, string projectName, string remarks, int status)
        {
            string sql = @"select v.*,ISNULL(v.IsFinish,(case when ISNULL(v.pqty,0)= ISNULL(v.mqty,0) then 1 else 0 end)) as IsEnd from (
select ma.*,e.name + '('+isnull(e.mobilephone,'')+')' as billCreatorName,i.projectName,s.storeHouseName as inStoreName, 
(select stuff((select distinct ','+s.storeHouseName from Pro_MatAllotDet mad
join sys_storehouse s on mad.outStorageCode=s.storeHouseCode
where parentId =ma.id for xml path('')),1,1,'')) as outStoreName,I.projectSim,D.dicItem AS typename,ppi.id as InvoiceId,i.projectNum,
(select sum(md.qty) from Pro_MatAllotDet md  where md.parentId =ma.id) as mqty,
(select sum(qty) from Pro_ProductOutStorageDet pod 
left join Pro_ProductOutStorage po on po.id = pod.parentID
where po.matAllotBillCode = ma.billCode) as pqty
from Pro_MatAllot ma
join sys_storehouse s on ma.inStoreCode=s.storeHouseCode
join sys_employee e on ma.billCreator=e.employeeCode
left join Pro_ProductInvoice ppi on ppi.MatAllotBillCode=ma.billCode
left join Pro_Info i on ma.projectCode = i.projectNum
LEFT JOIN sys_dicDetail D ON D.dicItemcode = I.projectType
) as v where 1=1 ";
            if (!string.IsNullOrEmpty(billCode))
            {
                sql += " and v.billCode like '%" + billCode.Trim() + "%'";
            }
            if (!string.IsNullOrEmpty(projectName))
            {
                sql += " and v.projectName like '%" + projectName.Trim() + "%'";
            }
            if (!string.IsNullOrEmpty(projectNum))
            {
                sql += " and v.projectNum like '%" + projectNum.Trim() + "%'";
            }
            if (!string.IsNullOrEmpty(remarks))
            {
                sql += " and v.remarks like '%" + remarks.Trim() + "%'";
            }
            sql += " and v.status=" + status + "";
            List<MatAllotModel> matAllot = EntityHelper.Default.GetPageEntities<MatAllotModel>(pager.page, pager.rows, sql, "id", pager.sort, pager.order);
            pager.totalRows = DBHelper.Default.Count(sql);
            pager.result = matAllot;
            return matAllot;
        }
        public List<MatAllotModel> GeProMatAllotList(ref PagerModel pager, string billCode, string projectNum, string projectName, string remarks, int status)
        {
            string sql = @"select v.*,ISNULL(v.IsFinish,(case when ISNULL(v.pqty,0)= ISNULL(v.mqty,0) then 1 else 0 end)) as IsEnd from (
select ma.*,e.name + '('+isnull(e.mobilephone,'')+')' as billCreatorName,i.projectName,s.storeHouseName as inStoreName, 
(select stuff((select distinct ','+s.storeHouseName from Pro_MatAllotDet mad
join sys_storehouse s on mad.outStorageCode=s.storeHouseCode
where parentId =ma.id for xml path('')),1,1,'')) as outStoreName,I.projectSim,D.dicItem AS typename,ppi.id as InvoiceId,i.projectNum,
(select sum(md.qty) from Pro_MatAllotDet md  where md.parentId =ma.id) as mqty,
(select sum(qty) from Pro_ProductOutStorageDet pod 
left join Pro_ProductOutStorage po on po.id = pod.parentID
where po.matAllotBillCode = ma.billCode) as pqty
from Pro_MatAllot ma
join sys_storehouse s on ma.inStoreCode=s.storeHouseCode
join sys_employee e on ma.billCreator=e.employeeCode
left join Pro_ProductInvoice ppi on ppi.MatAllotBillCode=ma.billCode
left join Pro_Info i on ma.projectCode = i.projectNum
LEFT JOIN sys_dicDetail D ON D.dicItemcode = I.projectType
) as v where 1=1 ";
            if (!string.IsNullOrEmpty(billCode))
            {
                sql += " and v.billCode like '%" + billCode.Trim() + "%'";
            }
            if (!string.IsNullOrEmpty(projectName))
            {
                sql += " and v.projectName like '%" + projectName.Trim() + "%'";
            }
            if (!string.IsNullOrEmpty(projectNum))
            {
                sql += " and v.projectNum like '%" + projectNum.Trim() + "%'";
            }
            if (!string.IsNullOrEmpty(remarks))
            {
                sql += " and v.remarks like '%" + remarks.Trim() + "%'";
            }
            sql += " and v.status=" + status + "";
            List<MatAllotModel> matAllot = EntityHelper.Default.GetPageEntities<MatAllotModel>(pager.page, pager.rows, sql, "id", pager.sort, pager.order);
            pager.totalRows = DBHelper.Default.Count(sql);
            pager.result = matAllot;
            return matAllot;
        }

View Code

View Code

3、

3、

金沙注册送58 151金沙注册送58 152

金沙注册送58 153金沙注册送58 154

public static List<ConStockDialogMod> GetMaterialData(ref PagerModel pager, string memberName, string storeCode, string parentId, string store)
{
    StringBuilder where = new StringBuilder(" and 1=1 ");
    if (!string.IsNullOrEmpty(memberName))              //当物料为空时,查询出所有的结果集,否则查询出此种相似物料的结果集
        where.AppendFormat("  and t3.memberName like '%{0}%' ", memberName.Trim());
    if (!string.IsNullOrEmpty(storeCode))              //当物料为空时,查询出所有的结果集,否则查询出此种相似物料的结果集
        where.AppendFormat("  and SSH.storeHouseCode='{0}' ", storeCode);
    if (!string.IsNullOrEmpty(parentId))              //当物料为空时,查询出所有的结果集,否则查询出此种相似物料的结果集
        where.AppendFormat("  and t3.parentId = {0} ", parentId);
    if (!string.IsNullOrEmpty(store))
        where.AppendFormat("  and SSH.storeHouseName like '%{0}%'  ", store.Trim());
    string sql = @"SELECT PM.id,PM.conMemberCode as conMemberCode,PM.price,(PM.qty-PM.lockQty-PM.usedQty) AS stockNum,
        PM.instoreTime,PM.billNo,PM.storeCode,PM.lockQty,PM.usedQty,SSH.storeHouseName AS storeName,
        t3.allWeight,t3.qtyUnit,t3.weight as weights,t3.memberName,t3.model,t3.qulity, 
        d1.dicItem as allWeightUnitName,d2.dicItem as qtyUnitName,
        d3.dicItem as qulityName,d4.dicItem as weightUnitName,
        (select SUM(pt.qty) from Pro_ProductOutstorageDet pt where pt.conInventoryDetId=PM.id)as outQty  
        from Pro_ConStock PM
        join Pro_ConPurInstore cpd on PM.billNo=cpd.billCode
        join Pro_ConPurInstoreDet cp on cpd.id=cp.parentId and PM.billId=cp.id
        join dbo.Pro_ConGoodsDet t on t.id=cp.conGoodsDetId
        join dbo.Pro_ConPurchaseContractDet t1 on t1.id=t.conContractDetId
        join dbo.Pro_ConPurchasePlanDet t2 on t2.id=t1.conPlanDetID
        join dbo.Pro_ConMemberDet t3 on t3.id=t2.conMemberDetId
        left join sys_storehouse SSH on SSH.storeHouseCode=PM.storeCode
        left join sys_dicDetail d1 on d1.dicItemcode=t3.allWeightUnit
        left join sys_dicDetail d2 on d2.dicItemcode=t3.qtyUnit
        left join sys_dicDetail d3 on d3.dicItemcode=t3.qulity
        left join sys_dicDetail d4 on d4.dicItemcode=t3.weightUnit 
        WHERE  PM.qty-PM.lockQty-PM.usedQty > 0  " + where +
    @" union 
        SELECT PM.id,PM.conMemberCode as conMemberCode,PM.price,(PM.qty-PM.lockQty-PM.usedQty) AS stockNum,
        PM.instoreTime,PM.billNo,PM.storeCode,PM.lockQty,PM.usedQty,
        SSH.storeHouseName AS storeName,
        t3.allWeight,t3.qtyUnit,t3.weight as weights,t3.memberName,t3.model,t3.qulity, 
        d1.dicItem as allWeightUnitName,d2.dicItem as qtyUnitName,
        d3.dicItem as qulityName,d4.dicItem as weightUnitName,
        (select SUM(pt.qty) from Pro_ProductOutstorageDet pt where pt.conInventoryDetId=PM.id)as outQty  
        from Pro_ConStock PM
        join Pro_ProductInstorage cpd on PM.billNo=cpd.billNo
        join Pro_ProductInstorageDet cp on cpd.id=cp.parentId and PM.billId=cp.id
        join dbo.Pro_ConMemberDet t3 on t3.id=cp.conMemberDetId
        left join sys_storehouse SSH on SSH.storeHouseCode=PM.storeCode
        left join sys_dicDetail d1 on d1.dicItemcode=t3.allWeightUnit
        left join sys_dicDetail d2 on d2.dicItemcode=t3.qtyUnit
        left join sys_dicDetail d3 on d3.dicItemcode=t3.qulity
        left join sys_dicDetail d4 on d4.dicItemcode=t3.weightUnit  
        WHERE  PM.qty-PM.lockQty-PM.usedQty > 0 " + where;


    List<ConStockDialogMod> model = EntityHelper.Default.GetPageEntities<ConStockDialogMod>(pager.page, pager.rows, sql.ToString(), "id", pager.sort, pager.order);
    pager.totalRows = DBHelper.Default.Count(sql.ToString());
    pager.result = model;
    return model;

}
public static List<ConStockDialogMod> GetMaterialData(ref PagerModel pager, string memberName, string storeCode, string parentId, string store)
{
    StringBuilder where = new StringBuilder(" and 1=1 ");
    if (!string.IsNullOrEmpty(memberName))              //当物料为空时,查询出所有的结果集,否则查询出此种相似物料的结果集
        where.AppendFormat("  and t3.memberName like '%{0}%' ", memberName.Trim());
    if (!string.IsNullOrEmpty(storeCode))              //当物料为空时,查询出所有的结果集,否则查询出此种相似物料的结果集
        where.AppendFormat("  and SSH.storeHouseCode='{0}' ", storeCode);
    if (!string.IsNullOrEmpty(parentId))              //当物料为空时,查询出所有的结果集,否则查询出此种相似物料的结果集
        where.AppendFormat("  and t3.parentId = {0} ", parentId);
    if (!string.IsNullOrEmpty(store))
        where.AppendFormat("  and SSH.storeHouseName like '%{0}%'  ", store.Trim());
    string sql = @"SELECT PM.id,PM.conMemberCode as conMemberCode,PM.price,(PM.qty-PM.lockQty-PM.usedQty) AS stockNum,
        PM.instoreTime,PM.billNo,PM.storeCode,PM.lockQty,PM.usedQty,SSH.storeHouseName AS storeName,
        t3.allWeight,t3.qtyUnit,t3.weight as weights,t3.memberName,t3.model,t3.qulity, 
        d1.dicItem as allWeightUnitName,d2.dicItem as qtyUnitName,
        d3.dicItem as qulityName,d4.dicItem as weightUnitName,
        (select SUM(pt.qty) from Pro_ProductOutstorageDet pt where pt.conInventoryDetId=PM.id)as outQty  
        from Pro_ConStock PM
        join Pro_ConPurInstore cpd on PM.billNo=cpd.billCode
        join Pro_ConPurInstoreDet cp on cpd.id=cp.parentId and PM.billId=cp.id
        join dbo.Pro_ConGoodsDet t on t.id=cp.conGoodsDetId
        join dbo.Pro_ConPurchaseContractDet t1 on t1.id=t.conContractDetId
        join dbo.Pro_ConPurchasePlanDet t2 on t2.id=t1.conPlanDetID
        join dbo.Pro_ConMemberDet t3 on t3.id=t2.conMemberDetId
        left join sys_storehouse SSH on SSH.storeHouseCode=PM.storeCode
        left join sys_dicDetail d1 on d1.dicItemcode=t3.allWeightUnit
        left join sys_dicDetail d2 on d2.dicItemcode=t3.qtyUnit
        left join sys_dicDetail d3 on d3.dicItemcode=t3.qulity
        left join sys_dicDetail d4 on d4.dicItemcode=t3.weightUnit 
        WHERE  PM.qty-PM.lockQty-PM.usedQty > 0  " + where +
    @" union 
        SELECT PM.id,PM.conMemberCode as conMemberCode,PM.price,(PM.qty-PM.lockQty-PM.usedQty) AS stockNum,
        PM.instoreTime,PM.billNo,PM.storeCode,PM.lockQty,PM.usedQty,
        SSH.storeHouseName AS storeName,
        t3.allWeight,t3.qtyUnit,t3.weight as weights,t3.memberName,t3.model,t3.qulity, 
        d1.dicItem as allWeightUnitName,d2.dicItem as qtyUnitName,
        d3.dicItem as qulityName,d4.dicItem as weightUnitName,
        (select SUM(pt.qty) from Pro_ProductOutstorageDet pt where pt.conInventoryDetId=PM.id)as outQty  
        from Pro_ConStock PM
        join Pro_ProductInstorage cpd on PM.billNo=cpd.billNo
        join Pro_ProductInstorageDet cp on cpd.id=cp.parentId and PM.billId=cp.id
        join dbo.Pro_ConMemberDet t3 on t3.id=cp.conMemberDetId
        left join sys_storehouse SSH on SSH.storeHouseCode=PM.storeCode
        left join sys_dicDetail d1 on d1.dicItemcode=t3.allWeightUnit
        left join sys_dicDetail d2 on d2.dicItemcode=t3.qtyUnit
        left join sys_dicDetail d3 on d3.dicItemcode=t3.qulity
        left join sys_dicDetail d4 on d4.dicItemcode=t3.weightUnit  
        WHERE  PM.qty-PM.lockQty-PM.usedQty > 0 " + where;


    List<ConStockDialogMod> model = EntityHelper.Default.GetPageEntities<ConStockDialogMod>(pager.page, pager.rows, sql.ToString(), "id", pager.sort, pager.order);
    pager.totalRows = DBHelper.Default.Count(sql.ToString());
    pager.result = model;
    return model;

}

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金沙注册送58 155金沙注册送58 156

金沙注册送58 157金沙注册送58 158

        /// <summary>
        /// Sql
        /// </summary>
        /// <param name="formData"></param>
        /// <returns></returns>
        public override string GetReportSql(string formData)
        {
            TaskAllocationModel search = JsonConvert.DeserializeObject<TaskAllocationModel>(formData);
            StringBuilder where = new StringBuilder(" where 1=1 ");
            if (!string.IsNullOrEmpty(search.projectCode))
            {
                where.AppendFormat("  and ta.projectCode like '%{0}%' ", search.projectCode.Trim());
            }
            if (!string.IsNullOrEmpty(search.projectName))
            {
                where.AppendFormat("  and pro.projectName like '%{0}%' ", search.projectName.Trim());
            }
            string sql = @"select ta.billCode as '单号',pro.projectName as '项目名称',pro.projectNum as '项目编号',ta.desingBillCode as '项目设计任务单',
 CASE ta.violent WHEN '1' THEN '是' ELSE '否' END as '是否加急',
 CASE ta.taskType WHEN '0' THEN '载荷图' WHEN '1' THEN '方案图' WHEN '2' THEN '工程量统计' ELSE '载荷图与工程量统计' END as '任务类型',
ta.desingContent as '设计内容',ta.auditorScore as '审核人打分',
(select e.RealName
from Wf2Operate oper 
left join Wf2Node n on n.id = oper.Wf2NoteID 
left join employee e on e.employeecode = oper.Operator 
where Wf2InstanceID = ta.LastWf2InstanceID and n.Name='设计' and oper.OperationID != -3) as '设计者',
(select e.RealName
from Wf2Operate oper 
left join Wf2Node n on n.id = oper.Wf2NoteID 
left join employee e on e.employeecode = oper.Operator 
where Wf2InstanceID = ta.LastWf2InstanceID and n.Name='校对' and oper.OperationID != -3) as '校对者',
(select e.RealName
from Wf2Operate oper 
left join Wf2Node n on n.id = oper.Wf2NoteID 
left join employee e on e.employeecode = oper.Operator 
where Wf2InstanceID = ta.LastWf2InstanceID and n.Name='审核' and oper.OperationID != -3) as '审核者',
(select e.RealName
from Wf2Operate oper 
left join Wf2Node n on n.id = oper.Wf2NoteID 
left join employee e on e.employeecode = oper.Operator 
where Wf2InstanceID = ta.LastWf2InstanceID and n.Name='审定' and oper.OperationID != -3) as '审定者',
e.name as '创建人',ta.creatTime as '创建时间'
from Pro_TaskAllocation ta
left join Pro_Info pro on ta.projectCode=pro.projectNum
left join sys_employee e on ta.creator=e.employeeCode 
                 " + where;

            return sql.ToString();
        }
        /// <summary>
        /// Sql
        /// </summary>
        /// <param name="formData"></param>
        /// <returns></returns>
        public override string GetReportSql(string formData)
        {
            TaskAllocationModel search = JsonConvert.DeserializeObject<TaskAllocationModel>(formData);
            StringBuilder where = new StringBuilder(" where 1=1 ");
            if (!string.IsNullOrEmpty(search.projectCode))
            {
                where.AppendFormat("  and ta.projectCode like '%{0}%' ", search.projectCode.Trim());
            }
            if (!string.IsNullOrEmpty(search.projectName))
            {
                where.AppendFormat("  and pro.projectName like '%{0}%' ", search.projectName.Trim());
            }
            string sql = @"select ta.billCode as '单号',pro.projectName as '项目名称',pro.projectNum as '项目编号',ta.desingBillCode as '项目设计任务单',
 CASE ta.violent WHEN '1' THEN '是' ELSE '否' END as '是否加急',
 CASE ta.taskType WHEN '0' THEN '载荷图' WHEN '1' THEN '方案图' WHEN '2' THEN '工程量统计' ELSE '载荷图与工程量统计' END as '任务类型',
ta.desingContent as '设计内容',ta.auditorScore as '审核人打分',
(select e.RealName
from Wf2Operate oper 
left join Wf2Node n on n.id = oper.Wf2NoteID 
left join employee e on e.employeecode = oper.Operator 
where Wf2InstanceID = ta.LastWf2InstanceID and n.Name='设计' and oper.OperationID != -3) as '设计者',
(select e.RealName
from Wf2Operate oper 
left join Wf2Node n on n.id = oper.Wf2NoteID 
left join employee e on e.employeecode = oper.Operator 
where Wf2InstanceID = ta.LastWf2InstanceID and n.Name='校对' and oper.OperationID != -3) as '校对者',
(select e.RealName
from Wf2Operate oper 
left join Wf2Node n on n.id = oper.Wf2NoteID 
left join employee e on e.employeecode = oper.Operator 
where Wf2InstanceID = ta.LastWf2InstanceID and n.Name='审核' and oper.OperationID != -3) as '审核者',
(select e.RealName
from Wf2Operate oper 
left join Wf2Node n on n.id = oper.Wf2NoteID 
left join employee e on e.employeecode = oper.Operator 
where Wf2InstanceID = ta.LastWf2InstanceID and n.Name='审定' and oper.OperationID != -3) as '审定者',
e.name as '创建人',ta.creatTime as '创建时间'
from Pro_TaskAllocation ta
left join Pro_Info pro on ta.projectCode=pro.projectNum
left join sys_employee e on ta.creator=e.employeeCode 
                 " + where;

            return sql.ToString();
        }

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金沙注册送58 159金沙注册送58 160

金沙注册送58 161金沙注册送58 162

            string sql = string.Format(@"select t.*,t.haveQty as weichukuNum,(t.qty - t.chukuNum) as shenyuNum  from (SELECT o.*,(
 case memberType when 1 then (SELECT (qty- lockQty- usedQty) 
 FROM Pro_MatStock s where s.id=o.matStockId )
 when 0 then ((SELECT (qty- lockQty- usedQty) 
 FROM Pro_ConStock s where s.id=o.matStockId )) else 0 end) as haveQty,
 (case memberType when 1 then (SELECT materialName from sys_material where materialCode = o.code )
 when 0 then (select DISTINCT memberName from Pro_ConMemberDet v LEFT join Pro_ConMember g on g.id=v.parentId where v.memberCode=o.code and g.billCode=ma.conMemberBillNo) else '' end) as materialName
 ,sh.storeHouseName as outStorageName ,
isnull((case memberType when 1 then (select SUM(pt.qty) from Pro_ProductOutstorageDet pt LEFT join Pro_ProductOutstorage p on p.id=pt.parentID where pt.matStockId=o.matStockId and p.status in (1,2))
 when 0 then (select SUM(pt.qty) from Pro_ProductOutstorageDet pt LEFT join Pro_ProductOutstorage p on p.id=pt.parentID where pt.conInventoryDetId=o.matStockId and p.status in (1,2)) else 0 end),0) as chukuNum,
  (case memberType when 1 then (select SUM(ms.qty-ms.lockQty-ms.usedQty) from Pro_MatStock ms where ms.storeCode=ma.inStoreCode AND ms.materailCode =o.code)
 when 0 then (select SUM(cs.qty-cs.lockQty-cs.usedQty) from Pro_ConStock cs where cs.storeCode=ma.inStoreCode AND cs.conMemberCode =o.code) else 0 end) as xiangmukuNum
 from  Pro_MatAllotDet o 
 JOIN Pro_MatAllot ma on o.parentId = ma.id
 join sys_storehouse sh on o.outStorageCode=sh.storeHouseCode  
 where o.parentId in ({0})) t where t.chukuNum < t.qty", parentId);
            string sql = string.Format(@"select t.*,t.haveQty as weichukuNum,(t.qty - t.chukuNum) as shenyuNum  from (SELECT o.*,(
 case memberType when 1 then (SELECT (qty- lockQty- usedQty) 
 FROM Pro_MatStock s where s.id=o.matStockId )
 when 0 then ((SELECT (qty- lockQty- usedQty) 
 FROM Pro_ConStock s where s.id=o.matStockId )) else 0 end) as haveQty,
 (case memberType when 1 then (SELECT materialName from sys_material where materialCode = o.code )
 when 0 then (select DISTINCT memberName from Pro_ConMemberDet v LEFT join Pro_ConMember g on g.id=v.parentId where v.memberCode=o.code and g.billCode=ma.conMemberBillNo) else '' end) as materialName
 ,sh.storeHouseName as outStorageName ,
isnull((case memberType when 1 then (select SUM(pt.qty) from Pro_ProductOutstorageDet pt LEFT join Pro_ProductOutstorage p on p.id=pt.parentID where pt.matStockId=o.matStockId and p.status in (1,2))
 when 0 then (select SUM(pt.qty) from Pro_ProductOutstorageDet pt LEFT join Pro_ProductOutstorage p on p.id=pt.parentID where pt.conInventoryDetId=o.matStockId and p.status in (1,2)) else 0 end),0) as chukuNum,
  (case memberType when 1 then (select SUM(ms.qty-ms.lockQty-ms.usedQty) from Pro_MatStock ms where ms.storeCode=ma.inStoreCode AND ms.materailCode =o.code)
 when 0 then (select SUM(cs.qty-cs.lockQty-cs.usedQty) from Pro_ConStock cs where cs.storeCode=ma.inStoreCode AND cs.conMemberCode =o.code) else 0 end) as xiangmukuNum
 from  Pro_MatAllotDet o 
 JOIN Pro_MatAllot ma on o.parentId = ma.id
 join sys_storehouse sh on o.outStorageCode=sh.storeHouseCode  
 where o.parentId in ({0})) t where t.chukuNum < t.qty", parentId);

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