web.config配置链接字符串,并读取方法

web.config:

<appSettings>
   <add key="SqlServerConnString" value="Data Source=192.168.28.188;Initial Catalog=zhgpm;Persist Security Info=True;User ID=gxjt;Password=gxjt65681"/>
</appSettings>

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DBHelperSQL:

using System.Configuration;

public static string connectionString = System.Configuration.ConfigurationManager.AppSettings["SqlServerConnString"].ToString();