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客户端代码

复制代码 代码如下:
<%@ 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="/UploadFiles/2021-04-02/jquery-1.7.1.min.js"><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

复制代码 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):

复制代码 代码如下:
 <!--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:

复制代码 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"}])

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富贵资源网 Design By www.hznty.com