【web.config配置连接】

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

<!--
  如需如何設定 ASP.NET 應用程式的詳細資訊，請造訪
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->

<configuration>
    <system.web>
      <compilation debug="true" targetFramework="4.0" />
    </system.web>
  <!-- 数据库连接-->
  <connectionStrings>
    <add name="connectionString"
      connectionString="server=localhost;database=MY_DB;integrated security=SSPI"//本地连接
      
      providerName="System.Data.SqlClient"/>
  </connectionStrings>
</configuration>