Jquery ajax jsonp calls instance code across domains
- 2020-03-30 00:49:28
- OfStack
Client code
<%@ 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>
Server-side code
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();
}
}
The client page and the server page are in two projects for cross-domain invocation testing.
Cross-domain instance code (need to load jquery, the page is utf-8) :
<!-- Pull out recruitment data -->
<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"> More and more </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>
The json code:
success_jsonpCallback([{"city":" Guangzhou ","companyName":"POCO.CN","createTime":"15:02 release ","posiitonDetailUrl":"http://www.lagou.com:80/jobs/16868.html","positionAdvantage":" In the cohesion of the team, the old city to work convenient transportation, double break ","positionName":" Commercial front-end development engineer ","salary":"4k-7k"},{"city":" Beijing ","companyName":" Meitong yundong (Beijing) technology co., LTD ","createTime":"14:47 release ","posiitonDetailUrl":"http://www.lagou.com:80/jobs/16866.html","positionAdvantage":"Html5 The best technical team ","positionName":"Web The front-end development ","salary":"4k-8k"},{"city":" hangzhou ","companyName":" Pocket shopping ","createTime":"14:42 release ","posiitonDetailUrl":"http://www.lagou.com:80/jobs/13024.html","positionAdvantage":" Broad development platform, where self-worth is reflected ","positionName":"web Front-end development engineer ","salary":"8k-12k"},{"city":" Beijing ","companyName":" The pudding mobile ","createTime":"14:02 release ","posiitonDetailUrl":"http://www.lagou.com:80/jobs/1498.html","positionAdvantage":" Three meals, around the beauty such as clouds ","positionName":"Android Development engineer ","salary":"10k-20k"},{"city":" Beijing ","companyName":" The pudding mobile ","createTime":"14:02 release ","posiitonDetailUrl":"http://www.lagou.com:80/jobs/2539.html","positionAdvantage":" Three meals, small bridge water family, beauty ","positionName":"ios Development engineer ","salary":"10k-20k"},{"city":" Shanghai ","companyName":" ttpod ","createTime":"00:55 release ","posiitonDetailUrl":"http://www.lagou.com:80/jobs/11494.html","positionAdvantage":" Entrepreneurial atmosphere Small and beautiful ","positionName":"Android Development engineer ","salary":"8k-16k"},{"city":" Beijing ","companyName":"LBE Master safety ","createTime":"11:39 release ","posiitonDetailUrl":"http://www.lagou.com:80/jobs/5983.html","positionAdvantage":" Five social insurance and one housing fund Performance bonus ","positionName":"Android Development engineer ","salary":"8k The above "},{"city":" Beijing ","companyName":" Dim sum mobile ","createTime":"11:24 release ","posiitonDetailUrl":"http://www.lagou.com:80/jobs/16736.html","positionAdvantage":" Technology-oriented team atmosphere, comprehensive benefits ","positionName":"Android","salary":"15k-25k"},{"city":" Guangzhou ","companyName":" litchi FM","createTime":"10:44 release ","posiitonDetailUrl":"http://www.lagou.com:80/jobs/16634.html","positionAdvantage":" Even running and keeping the weight off are rewarded! ","positionName":"WP Mobile phone development engineer ","salary":"16k-25k"},{"city":" Beijing ","companyName":" Net silver - Jd subsidiary ","createTime":"10:08 release ","posiitonDetailUrl":"http://www.lagou.com:80/jobs/14162.html","positionAdvantage":" In charge of jingdong mall - Internet financial products JS The development of ","positionName":"Javascript Front-end development engineer ","salary":"10k-20k"}])