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- using System;
- using System.Collections;
- using System.Collections.Specialized;
- using System.Data;
- using MySql.Data.MySqlClient;
- using System.Configuration;
- using System.Data.Common;
- using System.Collections.Generic;
- using System.Text;
- using YTSoft.DBUtility;
- namespace DBUtility
- {
- /// <summary>
- /// 数据访问抽象基础类
- /// Copyright (C) Maticsoft
- /// </summary>
- public abstract class DbHelperMYSQL
- {
- //数据库连接字符串(web.config来配置),可以动态更改connectionString支持多数据库.
- public static readonly string connectionString = ConfigurationManager.ConnectionStrings["MySqlconnection"].ConnectionString;
- public DbHelperMYSQL()
- {
- }
- /// <summary>
- /// DataTable to tree 根据数据id,txt生成对应的json数据格式
- /// </summary>
- /// <param name="dt"></param>
- /// <param name="pField">Parentid</param>
- /// <param name="pValue">Parentid value</param>
- /// <param name="kField">pkid </param>
- /// <returns></returns>
- public static string TableToEasyUITreeJson(DataTable dt, string pField, string pValue, string pkid, string pktext, string url)
- {
- try
- {
- StringBuilder sb = new StringBuilder();
- string filter = String.Format(" {0}='{1}' ", pField, pValue);//获取顶级目录
- if (pValue == string.Empty || pValue == null)
- {
- filter = String.Format("{0}='{1}' or {0} is null", pField, pValue);
- }
- //filter = "Parentid is null";
- DataRow[] drs = dt.Select(filter);
- if (drs.Length < 1) return "";
- sb.Append("<UL id='treeList'>\n");
- foreach (DataRow dr in drs)
- {
- string pcv = dr[pkid].ToString();
- sb.AppendFormat("<li id='tree{0}'><a href='list.aspx?typeId={0}&ptypeId=#$' title='{1}'>\n", dr[pkid].ToString(), dr[pktext].ToString());
- sb.AppendFormat("{0}\n</a>", dr[pktext].ToString());
- //sb.Append("\"checked\":true,");
- //if (pValue == null || pValue == string.Empty)//根节点没有url
- //{
- // sb.AppendFormat("\"attributes\":\"{0}\"", "");
- //}
- //else
- //{
- // sb.AppendFormat("\"attributes\":\"{0}\"", url);
- //}
- sb.Append(TableToEasyUITreeJson(dt, pField, pcv, pkid, pktext, url).TrimEnd(','));
- sb.Append("</li>\n");
- }
- //if (sb.ToString().EndsWith(","))
- //{
- // sb.Remove(sb.Length - 1, 1);
- //}
- sb.Append("</ul>\n");
- return sb.ToString();
- }
- catch (Exception)
- {
- return "";
- }
- }
- public static string TableToEasyUITreeJson(DataTable dt, string pField, string pValue, string pkid)
- {
- try
- {
- StringBuilder sb = new StringBuilder();
- string filter = String.Format(" {0}='{1}' ", pField, pValue);//获取顶级目录
- if (pValue == string.Empty || pValue == null)
- {
- filter = String.Format("{0}='{1}' or {0} is null", pField, pValue);
- }
- //filter = "Parentid is null";
- DataRow[] drs = dt.Select(filter);
- if (drs.Length < 1) return "";
- //sb.AppendFormat("{0},", pValue);
- foreach (DataRow dr in drs)
- {
- string pcv = dr[pkid].ToString();
- sb.AppendFormat("{0},", dr[pkid].ToString());
- sb.Append(TableToEasyUITreeJson(dt, pField, pcv, pkid));
- }
- return sb.ToString();
- }
- catch (Exception)
- {
- return "";
- }
- }
- public static DataTable getDataTable(string sql, params MySqlParameter[] pms)
- {
- DataTable dt;
- try
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- using (MySqlCommand cmd = new MySqlCommand())
- {
- cmd.Connection = connection;
- cmd.CommandText = sql;
- if (connection.State != ConnectionState.Open)
- connection.Open();
- if (pms != null)
- {
- foreach (MySqlParameter parameter in pms)
- {
- if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) &&
- (parameter.Value == null))
- {
- parameter.Value = DBNull.Value;
- }
- cmd.Parameters.Add(parameter);
- }
- }
- MySqlDataAdapter mda = new MySqlDataAdapter(cmd);
- dt = new DataTable();
- mda.Fill(dt);
- }
- }
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- throw e;
- }
- return dt;
- }
- #region 公用方法
- /// <summary>
- /// 得到最大值
- /// </summary>
- /// <param name="FieldName"></param>
- /// <param name="TableName"></param>
- /// <returns></returns>
- public static int GetMaxID(string FieldName, string TableName)
- {
- string strsql = "select max(" + FieldName + ")+1 from " + TableName;
- object obj = GetSingle(strsql);
- if (obj == null)
- {
- return 1;
- }
- else
- {
- return int.Parse(obj.ToString());
- }
- }
- /// <summary>
- /// 是否存在
- /// </summary>
- /// <param name="strSql"></param>
- /// <returns></returns>
- public static bool Exists(string strSql)
- {
- object obj = GetSingle(strSql);
- int cmdresult;
- if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
- {
- cmdresult = 0;
- }
- else
- {
- cmdresult = int.Parse(obj.ToString());
- }
- if (cmdresult == 0)
- {
- return false;
- }
- else
- {
- return true;
- }
- }
- /// <summary>
- /// 是否存在(基于MySqlParameter)
- /// </summary>
- /// <param name="strSql"></param>
- /// <param name="cmdParms"></param>
- /// <returns></returns>
- public static bool Exists(string strSql, params MySqlParameter[] cmdParms)
- {
- object obj = GetSingle(strSql, cmdParms);
- int cmdresult;
- if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
- {
- cmdresult = 0;
- }
- else
- {
- cmdresult = int.Parse(obj.ToString());
- }
- if (cmdresult == 0)
- {
- return false;
- }
- else
- {
- return true;
- }
- }
- #endregion
- #region 执行简单SQL语句
- /// <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)
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- using (MySqlCommand cmd = new MySqlCommand(SQLString, connection))
- {
- try
- {
- connection.Open();
- int rows = cmd.ExecuteNonQuery();
- return rows;
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- connection.Close();
- throw e;
- }
- }
- }
- }
- /// <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 ExecuteSqlConn(string SQLString, string connectStr)
- {
- using (MySqlConnection connection = new MySqlConnection(connectStr))
- {
- using (MySqlCommand cmd = new MySqlCommand(SQLString, connection))
- {
- try
- {
- connection.Open();
- int rows = cmd.ExecuteNonQuery();
- return rows;
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- connection.Close();
- throw e;
- }
- }
- }
- }
- public static int ExecuteSqlByTime(string SQLString, int Times)
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- using (MySqlCommand cmd = new MySqlCommand(SQLString, connection))
- {
- try
- {
- connection.Open();
- cmd.CommandTimeout = Times;
- int rows = cmd.ExecuteNonQuery();
- return rows;
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- connection.Close();
- throw e;
- }
- }
- }
- }
- #region
- /// <summary>
- /// 执行MySql和Oracle滴混合事务
- /// </summary>
- /// <param name="list">SQL命令行列表</param>
- /// <param name="oracleCmdSqlList">Oracle命令行列表</param>
- /// <returns>执行结果 0-由于SQL造成事务失败 -1 由于Oracle造成事务失败 1-整体事务执行成功</returns>
- //public static int ExecuteSqlTran(List<CommandInfo> list, List<CommandInfo> oracleCmdSqlList)
- //{
- // using (MySqlConnection conn = new MySqlConnection(connectionString))
- // {
- // conn.Open();
- // MySqlCommand cmd = new MySqlCommand();
- // cmd.Connection = conn;
- // MySqlTransaction tx = conn.BeginTransaction();
- // cmd.Transaction = tx;
- // try
- // {
- // foreach (CommandInfo myDE in list)
- // {
- // string cmdText = myDE.CommandText;
- // MySqlParameter[] cmdParms = (MySqlParameter[])myDE.Parameters;
- // PrepareCommand(cmd, conn, tx, cmdText, cmdParms);
- // if (myDE.EffentNextType == EffentNextType.SolicitationEvent)
- // {
- // if (myDE.CommandText.ToLower().IndexOf("count(") == -1)
- // {
- // tx.Rollback();
- // throw new Exception("违背要求" + myDE.CommandText + "必须符合select count(..的格式");
- // //return 0;
- // }
- // object obj = cmd.ExecuteScalar();
- // bool isHave = false;
- // if (obj == null && obj == DBNull.Value)
- // {
- // isHave = false;
- // }
- // isHave = Convert.ToInt32(obj) > 0;
- // if (isHave)
- // {
- // //引发事件
- // myDE.OnSolicitationEvent();
- // }
- // }
- // if (myDE.EffentNextType == EffentNextType.WhenHaveContine || myDE.EffentNextType == EffentNextType.WhenNoHaveContine)
- // {
- // if (myDE.CommandText.ToLower().IndexOf("count(") == -1)
- // {
- // tx.Rollback();
- // throw new Exception("SQL:违背要求" + myDE.CommandText + "必须符合select count(..的格式");
- // //return 0;
- // }
- // object obj = cmd.ExecuteScalar();
- // bool isHave = false;
- // if (obj == null && obj == DBNull.Value)
- // {
- // isHave = false;
- // }
- // isHave = Convert.ToInt32(obj) > 0;
- // if (myDE.EffentNextType == EffentNextType.WhenHaveContine && !isHave)
- // {
- // tx.Rollback();
- // throw new Exception("SQL:违背要求" + myDE.CommandText + "返回值必须大于0");
- // //return 0;
- // }
- // if (myDE.EffentNextType == EffentNextType.WhenNoHaveContine && isHave)
- // {
- // tx.Rollback();
- // throw new Exception("SQL:违背要求" + myDE.CommandText + "返回值必须等于0");
- // //return 0;
- // }
- // continue;
- // }
- // int val = cmd.ExecuteNonQuery();
- // if (myDE.EffentNextType == EffentNextType.ExcuteEffectRows && val == 0)
- // {
- // tx.Rollback();
- // throw new Exception("SQL:违背要求" + myDE.CommandText + "必须有影响行");
- // //return 0;
- // }
- // cmd.Parameters.Clear();
- // }
- // string oraConnectionString = ConfigurationManager.ConnectionStrings["MySqlStr"].ConnectionString;
- // bool res = OracleHelper.ExecuteSqlTran(oraConnectionString, oracleCmdSqlList);
- // if (!res)
- // {
- // tx.Rollback();
- // throw new Exception("执行失败");
- // // return -1;
- // }
- // tx.Commit();
- // return 1;
- // }
- // catch (MySql.Data.MySqlClient.MySqlException e)
- // {
- // tx.Rollback();
- // throw e;
- // }
- // catch (Exception e)
- // {
- // tx.Rollback();
- // throw e;
- // }
- // }
- //}
- #endregion
- /// <summary>
- /// 执行多条SQL语句,实现数据库事务。
- /// </summary>
- /// <param name="SQLStringList">多条SQL语句</param>
- public static int ExecuteSqlTran(List<String> SQLStringList)
- {
- using (MySqlConnection conn = new MySqlConnection(connectionString))
- {
- conn.Open();
- MySqlCommand cmd = new MySqlCommand();
- cmd.Connection = conn;
- MySqlTransaction tx = conn.BeginTransaction();
- cmd.Transaction = tx;
- try
- {
- int count = 0;
- for (int n = 0; n < SQLStringList.Count; n++)
- {
- string strsql = SQLStringList[n];
- if (strsql.Trim().Length > 1)
- {
- cmd.CommandText = strsql;
- count += cmd.ExecuteNonQuery();
- }
- }
- tx.Commit();
- return count;
- }
- catch (Exception ex)
- {
- tx.Rollback();
- throw ex;
- return 0;
- }
- }
- }
- /// <summary>
- /// 执行带一个存储过程参数的的SQL语句。
- /// </summary>
- /// <param name="SQLString">SQL语句</param>
- /// <param name="content">参数内容,比如一个字段是格式复杂的文章,有特殊符号,可以通过这个方式添加</param>
- /// <returns>影响的记录数</returns>
- public static int ExecuteSql(string SQLString, string content)
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- MySqlCommand cmd = new MySqlCommand(SQLString, connection);
- MySql.Data.MySqlClient.MySqlParameter myParameter = new MySql.Data.MySqlClient.MySqlParameter("@content", SqlDbType.NText);
- myParameter.Value = content;
- cmd.Parameters.Add(myParameter);
- try
- {
- connection.Open();
- int rows = cmd.ExecuteNonQuery();
- return rows;
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- throw e;
- }
- finally
- {
- cmd.Dispose();
- connection.Close();
- }
- }
- }
- /// <summary>
- /// 执行带一个存储过程参数的的SQL语句。
- /// </summary>
- /// <param name="SQLString">SQL语句</param>
- /// <param name="content">参数内容,比如一个字段是格式复杂的文章,有特殊符号,可以通过这个方式添加</param>
- /// <returns>影响的记录数</returns>
- public static object ExecuteSqlGet(string SQLString, string content)
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- MySqlCommand cmd = new MySqlCommand(SQLString, connection);
- MySql.Data.MySqlClient.MySqlParameter myParameter = new MySql.Data.MySqlClient.MySqlParameter("@content", SqlDbType.NText);
- myParameter.Value = content;
- cmd.Parameters.Add(myParameter);
- try
- {
- connection.Open();
- object obj = cmd.ExecuteScalar();
- if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
- {
- return null;
- }
- else
- {
- return obj;
- }
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- throw e;
- }
- finally
- {
- cmd.Dispose();
- connection.Close();
- }
- }
- }
- /// <summary>
- /// 向数据库里插入图像格式的字段(和上面情况类似的另一种实例)
- /// </summary>
- /// <param name="strSQL">SQL语句</param>
- /// <param name="fs">图像字节,数据库的字段类型为image的情况</param>
- /// <returns>影响的记录数</returns>
- public static int ExecuteSqlInsertImg(string strSQL, byte[] fs)
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- MySqlCommand cmd = new MySqlCommand(strSQL, connection);
- MySql.Data.MySqlClient.MySqlParameter myParameter = new MySql.Data.MySqlClient.MySqlParameter("@fs", SqlDbType.Image);
- myParameter.Value = fs;
- cmd.Parameters.Add(myParameter);
- try
- {
- connection.Open();
- int rows = cmd.ExecuteNonQuery();
- return rows;
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- throw e;
- }
- finally
- {
- cmd.Dispose();
- connection.Close();
- }
- }
- }
- /// <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)
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- using (MySqlCommand cmd = new MySqlCommand(SQLString, connection))
- {
- try
- {
- connection.Open();
- object obj = cmd.ExecuteScalar();
- if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
- {
- return null;
- }
- else
- {
- return obj;
- }
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- connection.Close();
- throw e;
- }
- }
- }
- }
- public static object GetSingle(string SQLString, int Times)
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- using (MySqlCommand cmd = new MySqlCommand(SQLString, connection))
- {
- try
- {
- connection.Open();
- cmd.CommandTimeout = Times;
- object obj = cmd.ExecuteScalar();
- if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
- {
- return null;
- }
- else
- {
- return obj;
- }
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- connection.Close();
- throw e;
- }
- }
- }
- }
- /// <summary>
- /// 执行查询语句,返回MySqlDataReader ( 注意:调用该方法后,一定要对MySqlDataReader进行Close )
- /// </summary>
- /// <param name="strSQL">查询语句</param>
- /// <returns>MySqlDataReader</returns>
- public static MySqlDataReader ExecuteReader(string strSQL)
- {
- MySqlConnection connection = new MySqlConnection(connectionString);
- MySqlCommand cmd = new MySqlCommand(strSQL, connection);
- try
- {
- connection.Open();
- MySqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
- return myReader;
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- throw e;
- }
- }
- /// <summary>
- /// 执行查询语句,返回MySqlDataReader ( 注意:调用该方法后,一定要对MySqlDataReader进行Close )
- /// </summary>
- /// <param name="strSQL">查询语句</param>
- /// <returns>MySqlDataReader</returns>
- public static MySqlDataReader ExecuteReader(string strSQL, string connectionStr)
- {
- MySqlConnection connection = new MySqlConnection(connectionStr);
- MySqlCommand cmd = new MySqlCommand(strSQL, connection);
- try
- {
- connection.Open();
- MySqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
- return myReader;
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- throw e;
- }
- }
- /// <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)
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- DataSet ds = new DataSet();
- try
- {
- connection.Open();
- MySqlDataAdapter command = new MySqlDataAdapter(SQLString, connection);
- command.Fill(ds, "ds");
- }
- catch (MySql.Data.MySqlClient.MySqlException ex)
- {
- throw new Exception(ex.Message);
- }
- return ds;
- }
- }
- /// <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 QueryConn(string SQLString, string conStr)
- {
- using (MySqlConnection connection = new MySqlConnection(conStr))
- {
- DataSet ds = new DataSet();
- try
- {
- connection.Open();
- MySqlDataAdapter command = new MySqlDataAdapter(SQLString, connection);
- command.Fill(ds, "ds");
- }
- catch (MySql.Data.MySqlClient.MySqlException ex)
- {
- throw new Exception(ex.Message);
- }
- finally
- {
- connection.Close();
- }
- return ds;
- }
- }
- public static DataSet Query(string SQLString, int Times)
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- DataSet ds = new DataSet();
- try
- {
- connection.Open();
- MySqlDataAdapter command = new MySqlDataAdapter(SQLString, connection);
- command.SelectCommand.CommandTimeout = Times;
- command.Fill(ds, "ds");
- }
- catch (MySql.Data.MySqlClient.MySqlException ex)
- {
- throw new Exception(ex.Message);
- }
- return ds;
- }
- }
- #endregion
- #region 执行带参数的SQL语句
- /// <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 MySqlParameter[] cmdParms)
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- using (MySqlCommand cmd = new MySqlCommand())
- {
- try
- {
- PrepareCommand(cmd, connection, null, SQLString, cmdParms);
- int rows = cmd.ExecuteNonQuery();
- cmd.Parameters.Clear();
- return rows;
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- throw e;
- }
- }
- }
- }
- /// <summary>
- /// 执行多条SQL语句,实现数据库事务。
- /// </summary>
- /// <param name="SQLStringList">SQL语句的哈希表(key为sql语句,value是该语句的MySqlParameter[])</param>
- public static void ExecuteSqlTran(Hashtable SQLStringList)
- {
- using (MySqlConnection conn = new MySqlConnection(connectionString))
- {
- conn.Open();
- using (MySqlTransaction trans = conn.BeginTransaction())
- {
- MySqlCommand cmd = new MySqlCommand();
- try
- {
- //循环
- foreach (DictionaryEntry myDE in SQLStringList)
- {
- string cmdText = myDE.Key.ToString();
- MySqlParameter[] cmdParms = (MySqlParameter[])myDE.Value;
- PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
- int val = cmd.ExecuteNonQuery();
- cmd.Parameters.Clear();
- }
- trans.Commit();
- }
- catch
- {
- trans.Rollback();
- throw;
- }
- }
- }
- }
- /// <summary>
- /// 执行多条SQL语句,实现数据库事务。
- /// </summary>
- /// <param name="SQLStringList">SQL语句的哈希表(key为sql语句,value是该语句的MySqlParameter[])</param>
- public static int ExecuteSqlTran(System.Collections.Generic.List<CommandInfo> cmdList)
- {
- using (MySqlConnection conn = new MySqlConnection(connectionString))
- {
- conn.Open();
- using (MySqlTransaction trans = conn.BeginTransaction())
- {
- MySqlCommand cmd = new MySqlCommand();
- try
- {
- int count = 0;
- //循环
- foreach (CommandInfo myDE in cmdList)
- {
- string cmdText = myDE.CommandText;
- MySqlParameter[] cmdParms = (MySqlParameter[])myDE.Parameters;
- PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
- if (myDE.EffentNextType == EffentNextType.WhenHaveContine || myDE.EffentNextType == EffentNextType.WhenNoHaveContine)
- {
- if (myDE.CommandText.ToLower().IndexOf("count(") == -1)
- {
- trans.Rollback();
- return 0;
- }
- object obj = cmd.ExecuteScalar();
- bool isHave = false;
- if (obj == null && obj == DBNull.Value)
- {
- isHave = false;
- }
- isHave = Convert.ToInt32(obj) > 0;
- if (myDE.EffentNextType == EffentNextType.WhenHaveContine && !isHave)
- {
- trans.Rollback();
- return 0;
- }
- if (myDE.EffentNextType == EffentNextType.WhenNoHaveContine && isHave)
- {
- trans.Rollback();
- return 0;
- }
- continue;
- }
- int val = cmd.ExecuteNonQuery();
- count += val;
- if (myDE.EffentNextType == EffentNextType.ExcuteEffectRows && val == 0)
- {
- trans.Rollback();
- return 0;
- }
- cmd.Parameters.Clear();
- }
- trans.Commit();
- return count;
- }
- catch
- {
- trans.Rollback();
- throw;
- }
- }
- }
- }
- /// <summary>
- /// 执行多条SQL语句,实现数据库事务。
- /// </summary>
- /// <param name="SQLStringList">SQL语句的哈希表(key为sql语句,value是该语句的MySqlParameter[])</param>
- public static void ExecuteSqlTranWithIndentity(System.Collections.Generic.List<CommandInfo> SQLStringList)
- {
- using (MySqlConnection conn = new MySqlConnection(connectionString))
- {
- conn.Open();
- using (MySqlTransaction trans = conn.BeginTransaction())
- {
- MySqlCommand cmd = new MySqlCommand();
- try
- {
- int indentity = 0;
- //循环
- foreach (CommandInfo myDE in SQLStringList)
- {
- string cmdText = myDE.CommandText;
- MySqlParameter[] cmdParms = (MySqlParameter[])myDE.Parameters;
- foreach (MySqlParameter q in cmdParms)
- {
- if (q.Direction == ParameterDirection.InputOutput)
- {
- q.Value = indentity;
- }
- }
- PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
- int val = cmd.ExecuteNonQuery();
- foreach (MySqlParameter q in cmdParms)
- {
- if (q.Direction == ParameterDirection.Output)
- {
- indentity = Convert.ToInt32(q.Value);
- }
- }
- cmd.Parameters.Clear();
- }
- trans.Commit();
- }
- catch
- {
- trans.Rollback();
- throw;
- }
- }
- }
- }
- /// <summary>
- /// 执行多条SQL语句,实现数据库事务。
- /// </summary>
- /// <param name="SQLStringList">SQL语句的哈希表(key为sql语句,value是该语句的MySqlParameter[])</param>
- public static void ExecuteSqlTranWithIndentity(Hashtable SQLStringList)
- {
- using (MySqlConnection conn = new MySqlConnection(connectionString))
- {
- conn.Open();
- using (MySqlTransaction trans = conn.BeginTransaction())
- {
- MySqlCommand cmd = new MySqlCommand();
- try
- {
- int indentity = 0;
- //循环
- foreach (DictionaryEntry myDE in SQLStringList)
- {
- string cmdText = myDE.Key.ToString();
- MySqlParameter[] cmdParms = (MySqlParameter[])myDE.Value;
- foreach (MySqlParameter q in cmdParms)
- {
- if (q.Direction == ParameterDirection.InputOutput)
- {
- q.Value = indentity;
- }
- }
- PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
- int val = cmd.ExecuteNonQuery();
- foreach (MySqlParameter q in cmdParms)
- {
- if (q.Direction == ParameterDirection.Output)
- {
- indentity = Convert.ToInt32(q.Value);
- }
- }
- cmd.Parameters.Clear();
- }
- trans.Commit();
- }
- catch
- {
- trans.Rollback();
- throw;
- }
- }
- }
- }
- /// <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, params MySqlParameter[] cmdParms)
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- using (MySqlCommand cmd = new MySqlCommand())
- {
- try
- {
- PrepareCommand(cmd, connection, null, SQLString, cmdParms);
- object obj = cmd.ExecuteScalar();
- cmd.Parameters.Clear();
- if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
- {
- return null;
- }
- else
- {
- return obj;
- }
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- throw e;
- }
- cmd.Dispose();
- }
- connection.Close();
- }
- }
- /// <summary>
- /// 执行查询语句,返回MySqlDataReader ( 注意:调用该方法后,一定要对MySqlDataReader进行Close )
- /// </summary>
- /// <param name="strSQL">查询语句</param>
- /// <returns>MySqlDataReader</returns>
- public static MySqlDataReader ExecuteReader(string SQLString, params MySqlParameter[] cmdParms)
- {
- MySqlConnection connection = new MySqlConnection(connectionString);
- MySqlCommand cmd = new MySqlCommand();
- try
- {
- PrepareCommand(cmd, connection, null, SQLString, cmdParms);
- MySqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
- cmd.Parameters.Clear();
- return myReader;
- }
- catch (MySql.Data.MySqlClient.MySqlException e)
- {
- throw e;
- }
- // finally
- // {
- // cmd.Dispose();
- // connection.Close();
- // }
- }
- /// <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 MySqlParameter[] cmdParms)
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- MySqlCommand cmd = new MySqlCommand();
- PrepareCommand(cmd, connection, null, SQLString, cmdParms);
- using (MySqlDataAdapter da = new MySqlDataAdapter(cmd))
- {
- DataSet ds = new DataSet();
- try
- {
- da.Fill(ds, "ds");
- cmd.Parameters.Clear();
- }
- catch (MySql.Data.MySqlClient.MySqlException ex)
- {
- throw new Exception(ex.Message);
- }
- return ds;
- }
- }
- }
- private static void PrepareCommand(MySqlCommand cmd, MySqlConnection conn, MySqlTransaction trans, string cmdText, MySqlParameter[] cmdParms)
- {
- if (conn.State != ConnectionState.Open)
- conn.Open();
- cmd.Connection = conn;
- cmd.CommandText = cmdText;
- if (trans != null)
- cmd.Transaction = trans;
- cmd.CommandType = CommandType.Text;//cmdType;
- if (cmdParms != null)
- {
- foreach (MySqlParameter parameter in cmdParms)
- {
- if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) &&
- (parameter.Value == null))
- {
- parameter.Value = DBNull.Value;
- }
- cmd.Parameters.Add(parameter);
- }
- }
- }
- #endregion
- #region
- /// <summary>
- // @tblName nvarchar(200), ----要显示的表或多个表的连接
- //@fldName nvarchar(500) = '*', ----要显示的字段列表
- //@pageSize int = 1, ----每页显示的记录个数
- //@page int = 10, ----要显示那一页的记录
- //@pageCount int = 1 output, ----查询结果分页后的总页数
- //@Counts int = 1 output, ----查询到的记录数
- //@fldSort nvarchar(200) = null, ----排序字段列表或条件
- //@Sort bit = 1, ----排序方法,0为升序,1为降序(如果是多字段排列Sort指代最后一个排序字段的排列顺序(最后一个排序字段不加排序标记)--程序传参如:' SortA Asc,SortB Desc,SortC ')
- //@strCondition nvarchar(1000) = null, ----查询条件,不需where
- //@ID nvarchar(150), ----主表的主键
- //@Dist bit = 0 ----是否添加查询字段的 DISTINCT 默认0不添加/1添加
- /// </summary>
- /// <param name="tblName"></param>
- /// <param name="fldName"></param>
- /// <param name="pagesize"></param>
- /// <param name="page"></param>
- /// <param name="pagecout"></param>
- /// <param name="counts"></param>
- /// <param name="fldSort"></param>
- /// <param name="Sort"></param>
- /// <param name="strCondition"></param>
- /// <param name="ID"></param>
- /// <param name="Dist"></param>
- /// <returns></returns>
- #endregion
- public static DataTable RunProcedure_GetListPage(
- string tblName,
- string fldName,
- int pagesize,
- int page,
- ref int pagecout,
- ref int counts,
- string fldSort,
- int Sort,
- string strCondition,
- string ID,
- int Dist
- )
- {
- DataTable dt;
- try
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- connection.Open();
- MySqlCommand cmd = new MySqlCommand();
- cmd.Connection = connection;
- cmd.CommandText = "P_ListPage";
- cmd.CommandType = CommandType.StoredProcedure;
- IDataParameter[] parameters = new IDataParameter[] {
- new MySqlParameter("?p_table_name", MySqlDbType.VarChar, 100),
- new MySqlParameter("?p_fields", MySqlDbType.VarChar, 100),
- new MySqlParameter("?p_page_size", MySqlDbType.Int32),
- new MySqlParameter("?p_page_now", MySqlDbType.Int32),
- new MySqlParameter("?p_pagecount", MySqlDbType.Int32),
- new MySqlParameter("?p_totals", MySqlDbType.Int32),
- new MySqlParameter("?p_fldSort", MySqlDbType.VarChar, 200),
- new MySqlParameter("?p_sort", MySqlDbType.Int32),
- new MySqlParameter("?p_where_string", MySqlDbType.VarChar, 200),
- new MySqlParameter("?p_id", MySqlDbType.VarChar, 200)
- };
- parameters[0].Value = tblName;
- parameters[1].Value = fldName;
- parameters[2].Value = pagesize;
- parameters[3].Value = page;
- parameters[4].Direction = ParameterDirection.Output;
- parameters[5].Direction = ParameterDirection.Output;
- parameters[6].Value = fldSort;
- parameters[7].Value = Sort;
- parameters[8].Value = " 1=1 ";
- if (strCondition != null)
- {
- parameters[8].Value = " 1=1 and " + strCondition;
- }
- parameters[9].Value = ID;
- for (int i = 0; i < parameters.Length; i++)
- {
- cmd.Parameters.Add(parameters[i]);
- }
- MySqlDataAdapter dp = new MySqlDataAdapter(cmd);
- DataSet ds = new DataSet();
- dp.Fill(ds);
- pagecout = int.Parse(ds.Tables[1].Rows[0]["p_pagecount"].ToString());
- counts = int.Parse(ds.Tables[1].Rows[0]["p_totals"].ToString());
- dt = ds.Tables[0];
- }
- }
- catch (Exception ex)
- {
- throw ex;
- }
- return dt;
- }
- #region
- /// <summary>
- // @tblName nvarchar(200), ----要显示的表或多个表的连接
- //@fldName nvarchar(500) = '*', ----要显示的字段列表
- //@pageSize int = 1, ----每页显示的记录个数
- //@page int = 10, ----要显示那一页的记录
- //@pageCount int = 1 output, ----查询结果分页后的总页数
- //@Counts int = 1 output, ----查询到的记录数
- //@fldSort nvarchar(200) = null, ----排序字段列表或条件
- //@Sort bit = 1, ----排序方法,0为升序,1为降序(如果是多字段排列Sort指代最后一个排序字段的排列顺序(最后一个排序字段不加排序标记)--程序传参如:' SortA Asc,SortB Desc,SortC ')
- //@strCondition nvarchar(1000) = null, ----查询条件,不需where
- //@ID nvarchar(150), ----主表的主键
- //@Dist bit = 0 ----是否添加查询字段的 DISTINCT 默认0不添加/1添加
- /// </summary>
- /// <param name="tblName"></param>
- /// <param name="fldName"></param>
- /// <param name="pagesize"></param>
- /// <param name="page"></param>
- /// <param name="pagecout"></param>
- /// <param name="counts"></param>
- /// <param name="fldSort"></param>
- /// <param name="Sort"></param>
- /// <param name="strCondition"></param>
- /// <param name="ID"></param>
- /// <param name="Dist"></param>
- /// <returns></returns>
- #endregion
- public static DataTable RunProcedure_GetListPagebySort(
- string tblName,
- string fldName,
- int pagesize,
- int page,
- ref int pagecout,
- ref int counts,
- string p_order_string,
- string strCondition,
- string ID,
- int Dist
- )
- {
- DataTable dt;
- try
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- connection.Open();
- MySqlCommand cmd = new MySqlCommand();
- cmd.Connection = connection;
- cmd.CommandText = "P_ListPagebySort";
- cmd.CommandType = CommandType.StoredProcedure;
- IDataParameter[] parameters = new IDataParameter[] {
- new MySqlParameter("?p_table_name", MySqlDbType.VarChar, 100),
- new MySqlParameter("?p_fields", MySqlDbType.VarChar, 100),
- new MySqlParameter("?p_page_size", MySqlDbType.Int32),
- new MySqlParameter("?p_page_now", MySqlDbType.Int32),
- new MySqlParameter("?p_pagecount", MySqlDbType.Int32),
- new MySqlParameter("?p_totals", MySqlDbType.Int32),
- new MySqlParameter("?p_order_string", MySqlDbType.VarChar, 200),
- new MySqlParameter("?p_where_string", MySqlDbType.VarChar, 200),
- new MySqlParameter("?p_id", MySqlDbType.VarChar, 200)
- };
- parameters[0].Value = tblName;
- parameters[1].Value = fldName;
- parameters[2].Value = pagesize;
- parameters[3].Value = page;
- parameters[4].Direction = ParameterDirection.Output;
- parameters[5].Direction = ParameterDirection.Output;
- parameters[6].Value = p_order_string;
- parameters[7].Value = " 1=1 ";
- if (strCondition != null)
- {
- parameters[7].Value = " 1=1 and " + strCondition;
- }
- parameters[8].Value = ID;
- for (int i = 0; i < parameters.Length; i++)
- {
- cmd.Parameters.Add(parameters[i]);
- }
- MySqlDataAdapter dp = new MySqlDataAdapter(cmd);
- DataSet ds = new DataSet();
- dp.Fill(ds);
- pagecout = int.Parse(ds.Tables[1].Rows[0]["p_pagecount"].ToString());
- counts = int.Parse(ds.Tables[1].Rows[0]["p_totals"].ToString());
- dt = ds.Tables[0];
- }
- }
- catch (Exception ex)
- {
- dt = new DataTable();
- }
- return dt;
- }
- #region
- /// <summary>
- // @tblName nvarchar(200), ----要显示的表或多个表的连接
- //@fldName nvarchar(500) = '*', ----要显示的字段列表
- //@pageSize int = 1, ----每页显示的记录个数
- //@page int = 10, ----要显示那一页的记录
- //@pageCount int = 1 output, ----查询结果分页后的总页数
- //@Counts int = 1 output, ----查询到的记录数
- //@fldSort nvarchar(200) = null, ----排序字段列表或条件
- //@Sort bit = 1, ----排序方法,0为升序,1为降序(如果是多字段排列Sort指代最后一个排序字段的排列顺序(最后一个排序字段不加排序标记)--程序传参如:' SortA Asc,SortB Desc,SortC ')
- //@strCondition nvarchar(1000) = null, ----查询条件,不需where
- //@ID nvarchar(150), ----主表的主键
- //@Dist bit = 0 ----是否添加查询字段的 DISTINCT 默认0不添加/1添加
- /// </summary>
- /// <param name="tblName"></param>
- /// <param name="fldName"></param>
- /// <param name="pagesize"></param>
- /// <param name="page"></param>
- /// <param name="pagecout"></param>
- /// <param name="counts"></param>
- /// <param name="fldSort"></param>
- /// <param name="Sort"></param>
- /// <param name="strCondition"></param>
- /// <param name="ID"></param>
- /// <param name="Dist"></param>
- /// <returns></returns>
- #endregion
- public static DataTable RunProcedure_GetListPagebyGroup(
- string tblName,
- string fldName,
- int pagesize,
- int page,
- ref int pagecout,
- ref int selfcounts,
- ref int counts,
- string p_order_string,
- string strCondition,
- string strgroup,
- string ID,
- int Dist
- )
- {
- DataTable dt;
- try
- {
- using (MySqlConnection connection = new MySqlConnection(connectionString))
- {
- connection.Open();
- MySqlCommand cmd = new MySqlCommand();
- cmd.Connection = connection;
- cmd.CommandText = "P_ListPagebyGroup";
- cmd.CommandType = CommandType.StoredProcedure;
- IDataParameter[] parameters = new IDataParameter[] {
- new MySqlParameter("?p_table_name", MySqlDbType.VarChar, 100),
- new MySqlParameter("?p_fields", MySqlDbType.VarChar, 1000),
- new MySqlParameter("?p_page_size", MySqlDbType.Int32),
- new MySqlParameter("?p_page_now", MySqlDbType.Int32),
- new MySqlParameter("?p_pagecount", MySqlDbType.Int32),
- new MySqlParameter("?p_totals", MySqlDbType.Int32),
- new MySqlParameter("?p_order_string", MySqlDbType.VarChar, 200),
- new MySqlParameter("?p_where_string", MySqlDbType.VarChar, 200),
- new MySqlParameter("?p_group_string", MySqlDbType.VarChar, 200),
- new MySqlParameter("?p_id", MySqlDbType.VarChar, 200)
- };
- parameters[0].Value = tblName;
- parameters[1].Value = fldName;
- parameters[2].Value = pagesize;
- parameters[3].Value = page;
- parameters[4].Direction = ParameterDirection.Output;
- parameters[5].Direction = ParameterDirection.Output;
- parameters[6].Value = p_order_string;
- parameters[7].Value = " 1=1 ";
- if (strCondition != null)
- {
- parameters[7].Value = " 1=1 and " + strCondition;
- }
- if (strgroup != null && strgroup != "")
- {
- parameters[8].Value = strgroup;
- }
- parameters[9].Value = ID;
- for (int i = 0; i < parameters.Length; i++)
- {
- cmd.Parameters.Add(parameters[i]);
- }
- MySqlDataAdapter dp = new MySqlDataAdapter(cmd);
- DataSet ds = new DataSet();
- dp.Fill(ds);
- pagecout = int.Parse(ds.Tables[1].Rows[0]["p_pagecount"].ToString());
- selfcounts = int.Parse(ds.Tables[1].Rows[0]["p_totals"].ToString());
- dt = ds.Tables[0];
- }
- }
- catch (Exception ex)
- {
- dt = new DataTable();
- }
- return dt;
- }
- }
- }
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