HttpHandler 操作Session
 
using System;
using System.Web;
using System.Web.SessionState;

public class HandleDataRequst : IHttpHandler, IRequiresSessionState
{
   
    public void ProcessRequest (HttpContext context) {
         //context.Session["name"]
     }
}

这里的重点是一定要实现IRequiresSessionState或者IReadOnlySessionState，否则Session总是为null