.net jquery jsonp跨域请求

来源：互联网发布：儿童编程编辑：程序博客网时间：2024/05/17 06:11

1.在A网站构建ashx

可以看到请求时这样子的 www.xxx.com/xx.ashx?callback=?

输出：?({"UserName":"0010001BKCVXGJV","PassWord":"KHFTGUBY"})

public class GetAccountIDHandler : IHttpHandler{    public void ProcessRequest(HttpContext context)    {        context.Response.ContentType = "text/plain";        string callback = context.Request.QueryString["callback"];        if (!string.IsNullOrEmpty(callback))        {            AccountUser user = new AccountUser();            user.UserName =“admin“;            user.PassWord = “admin“;;            string jsonString = Newtonsoft.Json.JsonConvert.SerializeObject(user);            context.Response.Write(callback+"(" + jsonString + ")");          }    }    public bool IsReusable    {        get        {            return false;        }    }    public class AccountUser    {        public string UserName { get; set; }        public string PassWord { get; set; }    }    }

2.网站B：请求端

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %><!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">    <title></title>    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script>    <script language="javascript" type="text/javascript">        $(document).ready(function() {            $('#btn1').click(btn1_click);        });        function btn1_click() {            $.getJSON('http://localhost:32330/WebSite/portal/GetAccountIDHandler.ashx?callback=?', jsonp_callback);        }        function jsonp_callback(data) {            alert(data.UserName);            alert(data.PassWord);        }    </script></head><body>    <form id="form1" runat="server">    <div>        <input id="btn1" type="button" value="取得" />    </div>    </form></body></html>