关闭ie窗口清除Session

代码

       //function window.onunload() { alert('这就是你要做的事,关闭网页之后做的！ '); location = 'SessionClear.aspx'; }

        //function window.onbeforeunload() { alert('这就是你要做的事,关闭网页之前做的！ ') }

        function window.onunload() {

            if ((window.screenLeft >= 10000 && window.screenTop >= 10000) || event.altKey) {

                alert(window.screenLeft+","+window.screenTop);

                //用户非正常关闭时需要触发的动作

                location = 'Handler1.ashx';

            }

        } 

    </script>

Handler1.ashx:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Services;

using System.Web.SessionState;

namespace WebApplication1

{

    /// <summary>

    /// $codebehindclassname$ 的摘要说明

    /// </summary>

    [WebService(Namespace = "http://tempuri.org/")]

    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

    public class Handler1 : IHttpHandler,IRequiresSessionState

    {

        public void ProcessRequest(HttpContext context)

        {

            context.Response.ContentType = "text/plain";

            context.Session.Abandon();

            context.Session.Clear();

        }

        public bool IsReusable

            get

            {

                return false;

    }

}