[AJAX系列]XMLHttpResponse对象

时间：2023-03-09 14:36:26
[AJAX系列]XMLHttpResponse对象 
 <!DOCTYPE html>

 <html lang="en">

 <head>

     <meta charset="UTF-8">

     <title>Response</title>

 </head>

 <script>

     /**

      * 如果需要获得来自服务器的响应请使用XMLHttpRequest对象的responseText或responseXML属性

      * 比如：document.getElementById("myDiv").innerHTML=xmlhttp.responseText;

      * 如果来自服务器的响应是XML并且需要作为XML对象进行解析，请使用responseXML属性

      */

     function loadXMLDoc()

     {

         var xmlhttp;

         var txt,x,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)

             {

                 xmlDoc=xmlhttp.responseXML;

                 txt="";

                 x=xmlDoc.getElementsByTagName("ARTIST");

                 for (i=0;i<x.length;i++)

                 {

                     txt=txt + x[i].childNodes[0].nodeValue + "<br>";

                 }

                 document.getElementById("myDiv").innerHTML=txt;

             }

         }

         xmlhttp.open("GET","../cd_catelog.xml",true);

         xmlhttp.send();

     }

 </script>

 <body>

 <h2>My cd Collection:</h2>

 <div id="myDiv"></div>

 <button type="button" onclick="loadXMLDoc()">GET MY CD COLLECTION</button>

 </body>

 </html>
 <CATALOG>

     <CD>

         <TITLE>Empire Burlesque</TITLE>

         <ARTIST>Bob Dylan</ARTIST>

         <COUNTRY>USA</COUNTRY>

         <COMPANY>Columbia</COMPANY>

         <PRICE>10.90</PRICE>

         <YEAR>1985</YEAR>

     </CD>

 </CATALOG>

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