客户端代码
<%@ Page Language="C#"
AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApp.WebForm1"
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml" >
<head
runat="server">
<script src="jquery-1.7.1.min.js"
type="text/javascript"></script>
<script
type="text/javascript">
function aa() {
$.ajax({
url:
"http://localhost:12079/WebForm2.aspx",
data:
"p1=1&p2=2&callback=?",
type: "post",
processData: false,
timeout: 15000,
dataType:
"jsonp", // not "json" we‘ll parse
jsonp:
"jsonpcallback",
success: function(result) {
alert(result.value1);
}
});
}
</script>
<title></title>
</head>
<body>
<form
id="form1" runat="server">
<div>
</div>
</form>
<p>
<input id="Button1" type="button"
value="button" onclick="aa()"
/></p>
</body>
</html>
服务器端代码
public partial class WebForm2 :
System.Web.UI.Page
{
protected void Page_Load(object sender,
EventArgs e)
{
string callback =
Request["callback"];
string v1="1";
string
v2="2";
string response = "{\"value1\":\"" + v1 +
"\",\"value2\":\"" + v2 + "\"}";
string call = callback + "(" +
response + ")";
Response.Write(call);
Response.End();
}
}
客户端页面和服务器端页面在两个项目中,以便进行跨域调用测试。
跨域实例代码(需要加载jquery,页面为utf-8编码):
<!--拉勾招聘数据-->
<script
type="text/javascript">
function
success_jsonpCallback(data){
var html = ‘‘;
var pos =
‘‘;
html += ‘<ul>‘;
jQuery.each(data, function(k, v)
{
if(k<10){
pos = ‘【‘ + v.city+ ‘】‘
+ v.positionName + ‘(‘+ v.salary +‘) - ‘+v.companyName;
if(pos.length
> 20){
pos = pos.substring(0,19)+‘...‘;
}
html += ‘<li><a
href="‘+v.posiitonDetailUrl+‘" target="_blank" title="【‘ + v.city+ ‘】‘ +
v.positionName + ‘(‘+ v.salary +‘) -
‘+v.companyName+‘">‘+pos+‘</a></li>‘;
}
});
html += ‘</ul><div class="more-link"><a
href="http://www.lagou.com/jobs/list_%E5%89%8D%E7%AB%AF%E5%BC%80%E5%8F%91"
target="_blank">更多</a></div>‘;
jQuery(‘#lagouData‘).html(html);
}
function
getLagouData() {
jQuery.ajax({
async:false,
url:
"http://www.lagou.com/join/listW3cplus?kd=%E5%89%8D%E7%AB%AF%E5%BC%80%E5%8F%91",
type:
"GET",
dataType: "jsonp",
jsonpCallback:
‘success_jsonpCallback‘,
contentType: "application/jsonp;
charset=utf-8",
success: function(data)
{
success_jsonpCallback(data);
}
});
}
getLagouData();
</script>
<div id="lagouData"></div>
jsonp代码:
success_jsonpCallback([{"city":"广州","companyName":"POCO.CN","createTime":"15:02发布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/16868.html","positionAdvantage":"身处凝聚力团队,老城区上班交通便利,双休","positionName":"商业前端开发工程师","salary":"4k-7k"},{"city":"北京","companyName":"美通云动(北京)科技有限公司","createTime":"14:47发布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/16866.html","positionAdvantage":"Html5技术最棒的团队","positionName":"Web前端开发","salary":"4k-8k"},{"city":"杭州","companyName":"口袋购物","createTime":"14:42发布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/13024.html","positionAdvantage":"广阔的发展平台、自我价值体现的地方","positionName":"web前端开发工程师","salary":"8k-12k"},{"city":"北京","companyName":"布丁移动","createTime":"14:02发布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/1498.html","positionAdvantage":"三餐、周围美女如云","positionName":"Android开发工程师","salary":"10k-20k"},{"city":"北京","companyName":"布丁移动","createTime":"14:02发布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/2539.html","positionAdvantage":"三餐,小桥流水人家,美女","positionName":"ios开发工程师","salary":"10k-20k"},{"city":"上海","companyName":"天天动听","createTime":"00:55发布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/11494.html","positionAdvantage":"创业氛围
讲求小而美","positionName":"Android开发工程师","salary":"8k-16k"},{"city":"北京","companyName":"LBE安全大师","createTime":"11:39发布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/5983.html","positionAdvantage":"五险一金
绩效奖金","positionName":"Android开发工程师","salary":"8k以上"},{"city":"北京","companyName":"点心移动","createTime":"11:24发布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/16736.html","positionAdvantage":"技术导向的团队氛围,全方位的福利待遇","positionName":"Android","salary":"15k-25k"},{"city":"广州","companyName":"荔枝FM","createTime":"10:44发布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/16634.html","positionAdvantage":"连坚持跑步、保持体重都有奖励哦!","positionName":"WP手机开发工程师","salary":"16k-25k"},{"city":"北京","companyName":"网银-京东子公司","createTime":"10:08发布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/14162.html","positionAdvantage":"负责京东商城-互联网金融产品
JS开发","positionName":"Javascript 前端开发工程师","salary":"10k-20k"}])