Ajax+xml

Ajax+XML读取代码演示
<script type="text/javascript">
function loadXMLDoc(url){
var xmlhttp;
var txt,x,xx,i;
if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }else {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function() {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    txt="<table border='1'><tr><th>Title</th><th>Artist</th></tr>";
    x=xmlhttp.responseXML.documentElement.getElementsByTagName("CD");
    for (i=0;i<x.length;i++)
      {
      txt=txt + "<tr>";
      xx=x[i].getElementsByTagName("TITLE");
        {
        try{
          txt=txt + "<td>" + xx[0].firstChild.nodeValue + "</td>";
          }catch (er){
          txt=txt + "<td> </td>";
          }
        }
      xx=x[i].getElementsByTagName("ARTIST");
        {
        try{
          txt=txt + "<td>" + xx[0].firstChild.nodeValue + "</td>";
          }catch (er){
          txt=txt + "<td> </td>";
          }
        }
      txt=txt + "</tr>";
      }
    txt=txt + "</table>";
    document.getElementById('txtCDInfo').innerHTML=txt;
    }
  }
xmlhttp.open("GET",url,true);
xmlhttp.send();
}
</script>
<!--HTML代码-->
<div id="txtCDInfo">
<button onclick="loadXMLDoc('cd_catalog.xml')">获得 CD 信息</button>
</div>


<?xml version="1.0" encoding="ISO-8859-1"?>
<!-- Edited with XML Spy v2007 (http://www.altova.com) -->
<CATALOG>
<CD>
<TITLE>Empire Burlesque</TITLE>
<ARTIST>Bob Dylan</ARTIST>
<COUNTRY>USA</COUNTRY>
<COMPANY>Columbia</COMPANY>
<PRICE>10.90</PRICE>
<YEAR>1985</YEAR>
</CD>
<CD>
<TITLE>Hide your heart</TITLE>
<ARTIST>Bonnie Tyler</ARTIST>
<COUNTRY>UK</COUNTRY>
<COMPANY>CBS Records</COMPANY>
<PRICE>9.90</PRICE>
<YEAR>1988</YEAR>
</CD>
<CD>
<TITLE>Greatest Hits</TITLE>
<ARTIST>Dolly Parton</ARTIST>
<COUNTRY>USA</COUNTRY>
<COMPANY>RCA</COMPANY>
<PRICE>9.90</PRICE>
<YEAR>1982</YEAR>
</CD>

</CATALOG>