ASP.NET 连接MySql数据库

ASP.NET Mysql操作类

以下连接MySql数据库以VS2010为例，对于其他的编辑器也差不多

1. 我们需要在Mysql官网下载一个组件http://dev.mysql.com/downloads/connector/net/ 下载最新版的即可，并且安装connector，其实仅仅只是为了得到Mysql.Data.dll ( 0.0 )

2. 在你的VS2010 解决方案管理器里面添加 Mysql.Data.dll 引用(通常在c:\program files\MySQL\MySQL Connector Net(your version here)\Assemblies\v4.0 or v2.0)

3. 在你的web.config里面添加connection:

<connectionStrings>
<add name="MySQLConnString" connectionString="Server=your_MySql_Server_IP;Port=3306;Database=databaseName;Uid=username;Pwd=yourpassword;pooling=false;" providerName="MySql.Data.MySqlClient"/>
</connectionStrings>

4. 在你的代码前面添加using MySQL.Data.MySqlClient;

下面是个简单的连接Mysql 并且使用的例子

protected void Page_Load(object sender, EventArgs e)
{
DataSet ds_temp = GetObjects();
ListBox1.DataSource = ds_temp;
ListBox1.DataTextField = "yourColumn";
ListBox1.DataValueField = "yourColumn";
ListBox1.DataBind();
}

protected static DataSet GetObjects()
{
DataSet ds_temp = Connection_cls.GetDataSetQuery("SELECT yourColumn FROM yourtable", null);
return ds_temp;

}

private static string getHostString()
{
string host = ConfigurationManager.ConnectionStrings["MySQLConnString"].ConnectionString;
return host;
}
public static DataSet GetDataSetQuery(string sql, ArrayList paramList)
{
using (MySqlConnection conn = new MySqlConnection(getHostString()))
{
try
{
conn.Open();
MySqlDataAdapter da = new MySqlDataAdapter(sql, conn);
da.SelectCommand.Parameters.Clear();
if (paramList != null)
{
for (int i = 0; i < paramList.Count; i++)
{
da.SelectCommand.Parameters.Add(paramList[i] as MySqlParameter);
}
}
DataSet ds = new DataSet();
da.Fill(ds);
return ds;
}
finally
{
conn.Close();
}
}
}

Mysql官方.net连接文档：

I'm using Visual Web Developer 2010 Express Edition (and Visual C# 2010 Express) with MySQL. This is what I did:

1 - Download and install MySQL connector(just to get MySql.Data.dll).

2 - VWD 2010 in the Solution Explorer add reference to MySql.Data.dll(usually in c:\program files\MySQL\MySQL Connector Net(your version here)\Assemblies\v4.0 or v2.0)

3 - In the web.config add your string connection:
<connectionStrings>
<add name="MySQLConnString" connectionString="Server=your_MySql_Server_IP;Port=3306;Database=databaseName;Uid=username;Pwd=yourpassword;pooling=false;" providerName="MySql.Data.MySqlClient"/>
</connectionStrings>

4 - In the code behind type in: "using MySQL.Data.MySqlClient;"

Now you can use it as in this example:

protected void Page_Load(object sender, EventArgs e)
{
DataSet ds_temp = GetObjects();
ListBox1.DataSource = ds_temp;
ListBox1.DataTextField = "yourColumn";
ListBox1.DataValueField = "yourColumn";
ListBox1.DataBind();
}

protected static DataSet GetObjects()
{
DataSet ds_temp = Connection_cls.GetDataSetQuery("SELECT yourColumn FROM yourtable", null);
return ds_temp;

}

private static string getHostString()
{
string host = ConfigurationManager.ConnectionStrings["MySQLConnString"].ConnectionString;
return host;
}
public static DataSet GetDataSetQuery(string sql, ArrayList paramList)
{
using (MySqlConnection conn = new MySqlConnection(getHostString()))
{
try
{
conn.Open();
MySqlDataAdapter da = new MySqlDataAdapter(sql, conn);
da.SelectCommand.Parameters.Clear();
if (paramList != null)
{
for (int i = 0; i < paramList.Count; i++)
{
da.SelectCommand.Parameters.Add(paramList[i] as MySqlParameter);
}
}
DataSet ds = new DataSet();
da.Fill(ds);
return ds;
}
finally
{
conn.Close();
}
}
}