获取Web.Config中节点的值

读取webconfig里面的appSetting和connectionString

 <appSettings>
     <add key="SiteURL" value="？？？？" />
     <add key="WebURL" value="" />
   </appSettings>

在页面读取： private string siteUrl = ConfigurationManager.AppSettings["SiteURL"];

 <connectionStrings>
     <!--<add name="LogDBConn" connectionString="Data Source=？？？？;Initial Catalog=MOSS_Log;User ID=？;Password=？？!"/>-->
     <add name="LogDBConn" connectionString="Data Source=moss2007;Integrated Security=True;Initial Catalog=MOSS_Log" />
   </connectionStrings>

在页面读取：string strLogDBConn = System.Web.Configuration.WebConfigurationManager.ConnectionStrings["LogDBConn"].ToString();