怎么获取MVC Web.config 内的连接字符串

ASP.NET MVC 4中读取web.config中的配置方法如下：

web.config内容：

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

<system.web>

<compilation defaultLanguage="c#" debug="true" />

</system.web>

<appSettings>

<add key="ConnectionInfo" value="server=(local)database=NorthwindIntegrated Security=SSPI" />

</appSettings>

</configuration>

读取配置的方法：

void Page_Load(object sender, EventArgs e)

{

string connectionInfo = ConfigurationSettings.AppSettings["ConnectionInfo"]

using(SqlConnection connection = new SqlConnection(connectionInfo))

{

connection.Open()

// perform work with connection

}

}

给你我写的

先配置数据连接

<appSettings>

<add key="con" value="server=.uid=sapwd=database=Blog"></add>

</appSettings>

要用的话就这样写

con=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["con"])

其实就是key value结构

---