ASP.net如何连接SQL SERVER 2012数据库

<connectionStrings><add name="SQLConnectionString" connectionString="Data Source=服务器名;Initial Catalog=数据库名;Integrated Security=True"providerName="System.Data.SqlClient" /></connectionStrings>

//获取数据库连接字符串public static string connString = ConfigurationManager.ConnectionStrings["SQLConnectionString"].ConnectionString;