台州海关TD3600上线版本
This commit is contained in:
terry.wang
925
JJMediSys/cs/DoDBMySql.cs
Normal file
925
JJMediSys/cs/DoDBMySql.cs
Normal file
@@ -0,0 +1,925 @@
|
||||
using MySql.Data.MySqlClient;
|
||||
using System;
|
||||
using System.Collections;
|
||||
using System.Collections.Generic;
|
||||
using System.Data;
|
||||
using System.Data.SqlClient;
|
||||
using System.Linq;
|
||||
using System.Web;
|
||||
|
||||
namespace JJMediSys
|
||||
{
|
||||
public class DoDBMySql
|
||||
{
|
||||
//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 string connectionString = "";
|
||||
public DoDBMySql()
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
public static bool IsConnectionValid()
|
||||
{
|
||||
try
|
||||
{
|
||||
using (MySqlConnection connection = new MySqlConnection(connectionString))
|
||||
{
|
||||
connection.Open();
|
||||
if (connection.Ping())
|
||||
{
|
||||
MainForm.DBStat = 0;
|
||||
return true;
|
||||
}
|
||||
else
|
||||
{
|
||||
MainForm.DBStat = -1;
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
MainForm.DBStat = -1;
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
public enum EffentNextType
|
||||
{
|
||||
/// <summary>
|
||||
/// 对其他语句无任何影响
|
||||
/// </summary>
|
||||
None,
|
||||
/// <summary>
|
||||
/// 当前语句必须为"SELECT COUNT(1) FROM .."格式，如果存在则继续执行，不存在回滚事务
|
||||
/// </summary>
|
||||
WhenHaveContine,
|
||||
/// <summary>
|
||||
/// 当前语句必须为"SELECT COUNT(1) FROM .."格式，如果不存在则继续执行，存在回滚事务
|
||||
/// </summary>
|
||||
WhenNoHaveContine,
|
||||
/// <summary>
|
||||
/// 当前语句影响到的行数必须大于0，否则回滚事务
|
||||
/// </summary>
|
||||
ExcuteEffectRows,
|
||||
/// <summary>
|
||||
/// 引发事件-当前语句必须为"SELECT COUNT(1) FROM .."格式，如果不存在则继续执行，存在回滚事务
|
||||
/// </summary>
|
||||
SolicitationEvent
|
||||
}
|
||||
public class CommandInfo
|
||||
{
|
||||
public object ShareObject = null;
|
||||
public object OriginalData = null;
|
||||
event EventHandler SsolicitationEvent;
|
||||
public event EventHandler SolicitationEvent
|
||||
{
|
||||
add
|
||||
{
|
||||
SsolicitationEvent += value;
|
||||
}
|
||||
remove
|
||||
{
|
||||
SsolicitationEvent -= value;
|
||||
}
|
||||
}
|
||||
public void OnSolicitationEvent()
|
||||
{
|
||||
SsolicitationEvent?.Invoke(this, new EventArgs());
|
||||
}
|
||||
public string CommandText;
|
||||
public System.Data.Common.DbParameter[] Parameters;
|
||||
public EffentNextType EffentNextType = EffentNextType.None;
|
||||
public CommandInfo()
|
||||
{
|
||||
}
|
||||
public CommandInfo(string sqlText, SqlParameter[] para)
|
||||
{
|
||||
this.CommandText = sqlText;
|
||||
this.Parameters = para;
|
||||
}
|
||||
public CommandInfo(string sqlText, SqlParameter[] para, EffentNextType type)
|
||||
{
|
||||
this.CommandText = sqlText;
|
||||
this.Parameters = para;
|
||||
this.EffentNextType = type;
|
||||
}
|
||||
}
|
||||
|
||||
#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();
|
||||
MainForm.DBStat = -1;
|
||||
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 long ExecuteSqlReturnID(string SQLString)
|
||||
{
|
||||
using (MySqlConnection connection = new MySqlConnection(connectionString))
|
||||
{
|
||||
using (MySqlCommand cmd = new MySqlCommand(SQLString, connection))
|
||||
{
|
||||
try
|
||||
{
|
||||
connection.Open();
|
||||
int rows = cmd.ExecuteNonQuery();
|
||||
return cmd.LastInsertedId;
|
||||
}
|
||||
catch (MySql.Data.MySqlClient.MySqlException e)
|
||||
{
|
||||
connection.Close();
|
||||
MainForm.DBStat = -1;
|
||||
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();
|
||||
MainForm.DBStat = -1;
|
||||
throw e;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <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 connection = new MySqlConnection(connectionString))
|
||||
{
|
||||
connection.Open();
|
||||
MySqlCommand cmd = new MySqlCommand
|
||||
{
|
||||
Connection = connection
|
||||
};
|
||||
MySqlTransaction tx = connection.BeginTransaction();
|
||||
cmd.Transaction = tx;
|
||||
string strsql = "";
|
||||
try
|
||||
{
|
||||
int count = 0;
|
||||
for (int n = 0; n < SQLStringList.Count; n++)
|
||||
{
|
||||
strsql = SQLStringList[n];
|
||||
if (strsql.Trim().Length > 1)
|
||||
{
|
||||
cmd.CommandText = strsql;
|
||||
count += cmd.ExecuteNonQuery();
|
||||
}
|
||||
}
|
||||
tx.Commit();
|
||||
return count;
|
||||
}
|
||||
catch (Exception aaa)
|
||||
{
|
||||
// Tools.WriteTextLog("批量写入失败:" + aaa.Message + "_SQL:" + strsql, "error");
|
||||
// tx.Rollback();
|
||||
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)
|
||||
{
|
||||
Value = content
|
||||
};
|
||||
cmd.Parameters.Add(myParameter);
|
||||
try
|
||||
{
|
||||
connection.Open();
|
||||
int rows = cmd.ExecuteNonQuery();
|
||||
return rows;
|
||||
}
|
||||
catch (MySql.Data.MySqlClient.MySqlException e)
|
||||
{
|
||||
MainForm.DBStat = -1;
|
||||
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)
|
||||
{
|
||||
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)
|
||||
{
|
||||
MainForm.DBStat = -1;
|
||||
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)
|
||||
{
|
||||
Value = fs
|
||||
};
|
||||
cmd.Parameters.Add(myParameter);
|
||||
try
|
||||
{
|
||||
connection.Open();
|
||||
int rows = cmd.ExecuteNonQuery();
|
||||
return rows;
|
||||
}
|
||||
catch (MySql.Data.MySqlClient.MySqlException e)
|
||||
{
|
||||
MainForm.DBStat = -1;
|
||||
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();
|
||||
MainForm.DBStat = -1;
|
||||
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();
|
||||
MainForm.DBStat = -1;
|
||||
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)
|
||||
{
|
||||
MainForm.DBStat = -1;
|
||||
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)
|
||||
{
|
||||
MainForm.DBStat = -1;
|
||||
throw new Exception(ex.Message);
|
||||
}
|
||||
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)
|
||||
{
|
||||
MainForm.DBStat = -1;
|
||||
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;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <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);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public static object ExecuteProc(string SQLString, params MySqlParameter[] cmdParms)
|
||||
{
|
||||
using (MySqlConnection connection = new MySqlConnection(connectionString))
|
||||
{
|
||||
using (MySqlCommand cmd = new MySqlCommand())
|
||||
{
|
||||
try
|
||||
{
|
||||
|
||||
PrepareCommand(cmd, connection, null, SQLString, cmdParms);
|
||||
cmd.CommandType = CommandType.StoredProcedure;
|
||||
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;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user