asp.net 连接myql
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首先先安装ODBC驱动MyODBC-standard-3.51.07-win.msi
<appSettings>
<add key="data" value="Driver={MySQL ODBC 3.51 Driver};server=000.000.000.000;database=xx;uid=xx;password=xx;option=3"></add>
</appSettings>
/*
********************************************************
DB Access
******************************************************
*/
namespace Component
{
using System;
using System.Data;
using System.Data.Odbc;
using System.Data.Common;
using System.IO;
using System.Text;
using System.Collections;
public class DBManage:IDisposable
{
private string _conStr;
private OdbcConnection _odbcCon;
public DBManage()
{
_conStr = SysConfig.ConStr;
_odbcCon = new OdbcConnection(_conStr);
}
public DBManage(string strcon)
{
_conStr = strcon;
_odbcCon = new OdbcConnection(_conStr);
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(true);
}
protected virtual void Dispose(bool disposing)
{
if (! disposing)
return;
if( _odbcCon != null )
{
_odbcCon.Dispose();
_odbcCon = null;
}
}
/// <summary>
/// update
/// </summary>
/// <param name="_sqlStr">sql</param>
/// <returns> when success return true else false</returns>
public bool SetData(String _sqlStr)
{
bool _success = false;
OdbcCommand _command = new OdbcCommand();
_command.Connection = _odbcCon;
try
{
_odbcCon.Open();
_command.CommandText = _sqlStr;
//_command.CommandType = CommandType.StoredProcedure ;
_command.ExecuteNonQuery();
_success = true;
}
catch
{
}
finally
{
_odbcCon.Close();
}
return _success;
}
/// <summary>
/// update
/// </summary>
/// <param name="_sqlStr">sql</param>
/// <param name="_list">reutrn string after run sql</param>
/// <returns>when success return true else false</returns>
public bool SetData(String _sqlStr,ref ArrayList _list)
{
bool _success = false;
OdbcDataReader _reader ;
OdbcCommand _command = new OdbcCommand();
_command.Connection = _odbcCon;
try
{
_odbcCon.Open();
_command.CommandText = _sqlStr;
//_command.CommandType = CommandType.StoredProcedure;
_reader=_command.ExecuteReader(CommandBehavior.CloseConnection);
while(_reader.Read())
{
int _i=0;
int _count = _reader.FieldCount ;
for(_i=0;_i<_count;_i++)
{
_list.Add(_reader.GetValue(_i));
}
}
_reader.Close();
_success = true;
}
catch
{
}
finally
{
_odbcCon.Close();
}
return _success;
}
/// <summary>
/// get SqlDataReader
/// </summary>
/// <param name="_sqlStr">sql</param>
/// <returns>OdbcDataReader</returns>
public OdbcDataReader GetDataReader(String commandText)
{
OdbcDataReader _reader = null;
OdbcCommand _command = new OdbcCommand();
_command.Connection = _odbcCon;
try
{
if (_odbcCon.State != ConnectionState.Open)
{
_odbcCon.Open();
}
_command.CommandText = commandText;
_command.CommandType = CommandType.Text;
_reader = _command.ExecuteReader(CommandBehavior.CloseConnection);
}
catch { }
return _reader;
}
/// <summary>
///get DataSet
/// </summary>
/// <param name="_sqlStr">sql</param>
/// <returns></returns>
public DataSet GetDataSet(String commandText)
{
DataSet _ds = new DataSet();
OdbcCommand _command = new OdbcCommand();
_command.Connection = _odbcCon;
try
{
if (_odbcCon.State != ConnectionState.Open)
{
_odbcCon.Open();
}
_command.CommandText = commandText;
_command.CommandType = CommandType.Text;
OdbcDataAdapter _oda = new OdbcDataAdapter(_command);
_oda.Fill(_ds);
}
catch
{
_ds = null;
}
finally
{
if (_odbcCon.State == ConnectionState.Open)
{
_odbcCon.Close();
}
}
return _ds;
}
public bool FillDataSet(string commandText, DataSet ds)
{
bool success = false;
OdbcCommand _command = new OdbcCommand();
_command.Connection = _odbcCon;
try
{
if (_odbcCon.State != ConnectionState.Open)
{
_odbcCon.Open();
}
_command.CommandText = commandText;
_command.CommandType = CommandType.Text;
OdbcDataAdapter _oda = new OdbcDataAdapter(_command);
_oda.Fill(ds);
success = true;
}
catch
{
//
}
finally
{
if (_odbcCon.State == ConnectionState.Open)
{
_odbcCon.Close();
}
}
return success;
}
public DataTableReader GetDataTableReader(string commandText)
{
DataSet _ds = new DataSet();
DataTableReader _dtr;
OdbcCommand _command = new OdbcCommand();
_command.Connection = _odbcCon;
try
{
if (_odbcCon.State != ConnectionState.Open)
{
_odbcCon.Open();
}
_command.CommandText = commandText;
_command.CommandType = CommandType.Text;
OdbcDataAdapter _oda = new OdbcDataAdapter(_command);
_oda.Fill(_ds);
_dtr = _ds.CreateDataReader();
}
catch
{
_dtr = null;
}
finally
{
if (_odbcCon.State == ConnectionState.Open)
{
_odbcCon.Close();
}
}
return _dtr;
}
public bool TestSqlConnection()
{
bool _success = false;
try
{
_odbcCon.Open();
_success = true;
}
catch
{
}
finally
{
_odbcCon.Close();
}
return _success;
}
public int ExecuteNonQuery(string commandText)
{
int retval = 0;
OdbcCommand _command = new OdbcCommand();
_command.Connection = _odbcCon;
try
{
if (_odbcCon.State != ConnectionState.Open)
{
_odbcCon.Open();
}
_command.CommandText = commandText;
_command.CommandType = CommandType.Text;
retval = _command.ExecuteNonQuery();
}
catch{}
finally
{
_odbcCon.Close();
}
return retval;
}
public object ExecuteScalar(string commandText)
{
object retval = null;
OdbcCommand _command = new OdbcCommand();
_command.Connection = _odbcCon;
try
{
if (_odbcCon.State != ConnectionState.Open)
{
_odbcCon.Open();
}
_command.CommandText = commandText;
_command.CommandType = CommandType.Text;
retval = _command.ExecuteScalar();
}
catch { }
finally
{
_odbcCon.Close();
}
return retval;
}
}
}
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