jsonp+handler 的实现

public void ProcessRequest(HttpContext context)
        {
           //获取回调函数名
              string callback = context.Request.QueryString["callback"];
              //json数据
              string json = "{\"name\":\"chopper\",\"sex\":\"man\"}";
  
             context.Response.ContentType = "application/json";
             //输出：回调函数名(json数据)
             context.Response.Write(callback + "(" + json + ")");
        }

function fnHello() {
            $.ajax({
                url: "http://172.16.74.102:88/WebAPI/LoginHandller.ashx",
                dataType: "jsonp",
                jsonpCallback: "person",
                data:{aaa:"1111"},//参数后台可以得到
                success: function (data) {
                    alert(data.name + " is a a" + data.sex);
                }
            });
        }

        //回调函数person
        function person(data) {
            alert(data.name + " is a " + data.sex);
        }