ashx文件结合ajax使用(返回json数据)

ashx文件返回json数据:

        public void ProcessRequest(HttpContext context)

        {

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

            string userName = string.Empty;

            string msg = "{{\"code\":\"{0}\",\"msg\":\"{1}\"}}";

            //账号

            if (context.Request["txtUserName"] != null) userName = context.Request["txtUserName"];

            if (string.IsNullOrEmpty(userName))

            {

                context.Response.Write(string.Format(msg, -1, "账号不能为空!"));

                return;

            }      

            context.Response.Write(string.Format(msg, 1001, "注册成功"));

        } 

前端页面处理json数据方法:

    function Register() {

        //……

        $.ajax({

            type:"post",

            url:"abc.ashx?partner=<%=Request["partner"] %>&s=<%=Request["s"]%>&r=" + Math.random(),

            dataType:"json",

            data:{

                "txtUserName":$('#txtUserName').val()

            },

            async:true,

            success:function (data) {

                var item = eval(data);//转换成json对象访问           

                alert(data.msg);               

                if(item.code == "1001"){ //根据返回结果,动态修改执行方法

                    $("#success").attr("href","javascript:CloseWin()");

                    $("#succClose").attr("href","javascript:CloseWin()");

                }else{

                    $("#success").attr("href","javascript:$.modal.close()");

                    $("#succClose").attr("href","javascript:$.modal.close()");

                }

                return;

            }

        });        

    }

 

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