MVC4 用户关闭浏览器后更新用户登陆状态

时间 2019-11-25

原文原文链接

前台代码：ajax

　　<body onbeforeunload="RunOnBeforeUnload()" class="easyui-layout" style="overflow-y: hidden" scroll="no">浏览器

　　</body>async

　　function RunOnBeforeUnload() {
                //更改用户登陆状态
                var currUser = getCookie("UserAccount");
                $.ajax({
                    type: "post",
                    url: "../Home/UpdateLoginState",
                    data: { 'currUser': currUser},
                    dataType: "text",
                    async: false,
                    success: function (data) {

                    }
                });
            }post

后台代码：ui

　　　//关闭浏览器后更改用户登陆状态
        public ActionResult UpdateLoginState()
        {
            string currUser = "";
            string stateStr = "";
            if (Request["currUser"]!=null)
            {
                currUser = Request["currUser"].ToString();
                string updaStr = "update Users set OnLine=0 where UserAccount='"+currUser.Trim()+"'";
                int coun = SqlHelper.ExecuteSql(updaStr);
                if (coun > 0)
                {
                    stateStr = "更改为功！";
                }
                else
                {
                    stateStr = "更改失败！";
                }
            }
            return Content(stateStr);
        }url