jquery+ajax实现跨域请求的方法

$.ajax({
 type: "GET",
 url: "http://.xxx./Rest/ValidAountsExists.aspx?aounts=admin",
 dataType: "jsonp",
 jsonp: "jsoncallback",  
 suess: function (result) {   
 alert(result.Suess);   
 alert(result.Content);                               
 },

 error: function (result, status) {
    //处理错误
 }
});

string aounts = GameRequest.GetQueryString("aounts");
string jsoncallback = GameRequest.GetQueryString("jsoncallback");
Response.ContentEncoding =System.Text.Encoding.UTF8;
Response.ContentType = "application/json";
Response.Write(jsoncallback + "({\"Suess\":\"True\",\"Content\":\"" + aounts  + "\"})");
Response.End();