jqueryajaxjsonp跨域调用实例代码_jquery

代码如下:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApp.WebForm1" %>





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);
}
});
}

服务器端代码

代码如下:
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）：

代码如下:


function success_jsonpCallback(data){
var html = '';
var pos = '';
html += '';
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 += '

function getLagouData() {
jQuery.ajax({
async:false,
url: "http://www.lagou.com/join/listW3cplus?kd=%E5%%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();

jsonp代码：

代码如下:
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"}])