<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
<script src="../Scripts/jquery-1.7.2.min.js"></script>
<script src="../Scripts/JSON-js-master/json2.js"></script>
<script type="text/javascript">
$(function () {
$.ajax({
type: "GET",
dataType: "jsonp",//jsonp,json
//contentType: "application/json; charset=utf-8;",
async: true,
jsonp: 'callback', //传递给请求处理程序或页面的，用以获得jsonp回调函数名的参数名(默认为:callback)
jsonpCallback: 'jsonpCallback',//自定义的jsonp回调函数名称，默认为jQuery自动生成的随机函数名
//url: 'GetLocation.ashx',
data: { name: 'zdl' },
url: 'http://localhost:8099/GetLocation.ashx',
success: function (jsonData) {
console.log(jsonData);
//alert(JSON.stringify(jsonData));
var a = JSON.stringify(jsonData);
console.log(a);
alert(jsonData.message);
alert(1);
},
error: function (request, textStatus, errorThrown) {
//console.log(request.responseText);
//console.log(textStatus);
//console.log(errorThrown);
alert(2);
}
});
})
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
</form>
</body>
</html>
<%@ WebHandler Language="C#" Class="GetLocation" %>
using System;
using System.Web;
public class GetLocation : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
#region 方式1
//string callback01 = context.Request["callback"];
//context.Response.Write(callback01 + "( [ { message:"John"} ] )");
#endregion
#region 方式2
//string callback02 = context.Request["callback"];
//context.Response.Write(callback02 + "( { message:"John"} )");
#endregion
#region 方式3
var callback03 = context.Request["callback"]; //获得请求端回调函数
var data = "{" + "message:'" + context.Request["name"] + "'," + "id:'0001'" + "}";
var jsonp = callback03 + '(' + data + ')';
context.Response.Write(jsonp);
#endregion
}
public bool IsReusable
{
get
{
return false;
}
}
}
参考：http://www.cnblogs.com/know/archive/2011/10/09/2204005.html