客戶端代碼
<%@ 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>
服務器端代碼
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();
}
}
客戶端頁面和服務器端頁面在兩個項目中，以便進行跨域調用測試。
跨域實例代碼（需要加載jquery，頁面為utf-8編碼）：
<!--拉勾招聘數據-->
<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 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代碼：
success_jsonpCallback([{"city":"廣州","companyName":"POCO.CN","createTime":"15:02發布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/16868.html","positionAdvantage":"身處凝聚力團隊，老城區上班交通便利，雙休","positionName":"商業前端開發工程師","salary":"4k-7k"},{"city":"北京","companyName":"美通云動（北京）科技有限公司","createTime":"14:47發布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/16866.html","positionAdvantage":"Html5技術最棒的團隊","positionName":"Web前端開發","salary":"4k-8k"},{"city":"杭州","companyName":"口袋購物","createTime":"14:42發布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/13024.html","positionAdvantage":"廣闊的發展平臺、自我價值體現的地方","positionName":"web前端開發工程師","salary":"8k-12k"},{"city":"北京","companyName":"布丁移動","createTime":"14:02發布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/1498.html","positionAdvantage":"三餐、周圍美女如云","positionName":"Android開發工程師","salary":"10k-20k"},{"city":"北京","companyName":"布丁移動","createTime":"14:02發布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/2539.html","positionAdvantage":"三餐，小橋流水人家，美女","positionName":"ios開發工程師","salary":"10k-20k"},{"city":"上海","companyName":"天天動聽","createTime":"00:55發布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/11494.html","positionAdvantage":"創業氛圍 講求小而美","positionName":"Android開發工程師","salary":"8k-16k"},{"city":"北京","companyName":"LBE安全大師","createTime":"11:39發布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/5983.html","positionAdvantage":"五險一金 績效獎金","positionName":"Android開發工程師","salary":"8k以上"},{"city":"北京","companyName":"點心移動","createTime":"11:24發布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/16736.html","positionAdvantage":"技術導向的團隊氛圍，全方位的福利待遇","positionName":"Android","salary":"15k-25k"},{"city":"廣州","companyName":"荔枝FM","createTime":"10:44發布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/16634.html","positionAdvantage":"連堅持跑步、保持體重都有獎勵哦！","positionName":"WP手機開發工程師","salary":"16k-25k"},{"city":"北京","companyName":"網銀-京東子公司","createTime":"10:08發布","posiitonDetailUrl":"http://www.lagou.com:80/jobs/14162.html","positionAdvantage":"負責京東商城-互聯網金融產品 JS開發","positionName":"Javascript 前端開發工程師","salary":"10k-20k"}])
