通过 XML HTTP 加载 XML 文件

时间：2022-10-19 14:25:26

新建一个.aspx文件

 <%@ Page Language="C#" AutoEventWireup="true" CodeFile="02-通过 XML HTTP 加载 XML 文件.aspx.cs"
     Inherits="_02_通过_XML_HTTP_加载_XML_文件" %>

 <!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 type="text/javascript">
         var xmlhttp;
         function loadXMLDoc(url)
         {
             xmlhttp = null;
             if (window.XMLHttpRequest)
             {// code for IE7, Firefox, Opera, etc.
                 xmlhttp = new XMLHttpRequest();
             }
             else if (window.ActiveXObject)
             {// code for IE6, IE5
                 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
             }
             if (xmlhttp != null)
             {
                 xmlhttp.onreadystatechange = state_Change;
                 xmlhttp.open("GET", url, true);
                 xmlhttp.send(null);
             }
             else
             {
                 alert("Your browser does not support XMLHTTP.");
             }
         }

         function state_Change()
         {
             if (xmlhttp.readyState == 4)
             {// 4 = "loaded"
                 if (xmlhttp.status == 200)
                 {// 200 = "OK"
                     document.getElementById('A1').innerHTML = xmlhttp.status;
                     document.getElementById('A2').innerHTML = xmlhttp.statusText;
                     document.getElementById('A3').innerHTML = xmlhttp.responseText;
                 }
                 else
                 {
                     alert("Problem retrieving XML data:" + xmlhttp.statusText);
                 }
             }
         }
     </script>
 </head>
 <body>
     <h2>
         Using the HttpRequest Object</h2>
     <p>
         <b>Status:</b> <span id="A1"></span>
     </p>
     <p>
         <b>Status text:</b> <span id="A2"></span>
     </p>
     <p>
         <b>Response:</b>
         <br />
         <span id="A3"></span>
     </p>
     <button onclick="loadXMLDoc('note.xml')">
         Get XML</button>
 </body>
 </html>

note.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<note>
    <to>George</to>
    <from>John</from>
    <heading>Reminder</heading>
    <body>Don't forget the meeting!</body>
</note>

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