Asp.Net 2.0 操作mysql 数据基类(读取,删除,插入,更新)

dongfangho

mysql for C#数据源驱动　　第一步:请引用此压缩包中的MySql.Data.dll. 放在(bin)目录中
　　第二步:web.config 中的连接字符串:
　　<add key="mysqlconn" value="server=IP地址;database=数据库名;uid=登陆帐号;pwd=登陆密码;"></add>
　　第三步:
　　using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using MySql.Data.Types;
using MySql.Data.MySqlClient;
　　/// <summary>
/// C#操作mysql基类
/// </summary>
public class MySqlobj
{
private MySqlConnection conn;
private MySqlCommand com;
private bool _alreadyDispose = false;
　　#region 构造与柝构
public MySqlobj()
{
try
{
conn = new MySqlConnection(ConfigurationManager.AppSettings["mysqlconn"]);
conn.Open();
com = new MySqlCommand();
com.Connection = conn;
}
catch (Exception ee)
{
throw new Exception("连接数据库出错");
}
}
~MySqlobj()
{
Dispose();
}
protected virtual void Dispose(bool isDisposing)
{
if (_alreadyDispose) return;
if (isDisposing)
{
// TODO: 此处释放受控资源
if (com != null)
{

com.Dispose();
}
if (conn != null)
{
try
{
conn.Close();
conn.Dispose();
}
catch (Exception ee)
{
}
finally
{
conn = null;
}
}
}
// TODO: 此处释放非受控资源。设置被处理过标记
_alreadyDispose = true;
}
#endregion
　　#region IDisposable 成员
　　public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
　　#endregion
　　#region 获取DataSet
public DataSet GetDataSet(string sqlString)
{
DataSet ds = new DataSet();
try
{
MySqlDataAdapter da = new MySqlDataAdapter(sqlString, conn);
da.Fill(ds);
}
catch (Exception ee)
{
throw new Exception("SQL:" + sqlString + "<br />" + ee.Message.ToString());
}
return ds;
}
#endregion
　　#region 执行插入或删除操作
public void ExecuteNonQuery(string sqlString)
{
int ret = 0;
com.CommandText = sqlString;
com.CommandType = CommandType.Text;
try
{
ret = com.ExecuteNonQuery();
}
catch (Exception ee)
{
throw new Exception("SQL:" + sqlString + "<br />" + ee.Message.ToString());
}
finally
{
com.Dispose();
}
}
#endregion

}