ASP.NET 连接MySql数据库

吸毒的虫子

　　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 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 as MySqlParameter);

}

}

DataSet ds = new DataSet();

da.Fill(ds);

return ds;

}

finally

{

conn.Close();

}

}

}