1、導入命名空間 using System.Configuration;
2、添加引用 System.Configuration
3、web.config
<connectionStrings> <add name="connStr" connectionString="server=服務器名;database=數據庫名;uid=sa;pwd=123456"/> </connectionStrings>
4、獲取字符串
string connStr = ConfigurationManager.ConnectionStrings["connStr"].ConnectionString;