ajax与XML交互

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参考:http://www.w3school.com.cn/ajax/index.asp

<!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><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>ajax与XML交互</title></head><script type="text/javascript">//使用的服务器页面实际上是一个 XML 文件，名为 "cd_catalog.xml"。function loadXMLDoc(url){var xmlhttp;var txt,xx,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){ 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");////获取XML节点 TITLE{try{  txt=txt + "<td>" + xx[0].firstChild.nodeValue + "</td>";}catch (er){  txt=txt + "<td> </td>";}}xx=x[i].getElementsByTagName("ARTIST");////获取XML节点 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><body><div id="txtCDInfo" style="margin:15px 0 0 0; border:0; padding:0;"><button onclick="loadXMLDoc('/example/xmle/cd_catalog.xml')" style="font-family:Verdana, Arial, Helvetica, sans-serif; font-size:12px;">获得 CD 信息</button></div><!--cd_catalog.xml--><!--<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><CD><TITLE>Still got the blues</TITLE><ARTIST>Gary Moore</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>Virgin records</COMPANY><PRICE>10.20</PRICE><YEAR>1990</YEAR></CD><CD><TITLE>Eros</TITLE><ARTIST>Eros Ramazzotti</ARTIST><COUNTRY>EU</COUNTRY><COMPANY>BMG</COMPANY><PRICE>9.90</PRICE><YEAR>1997</YEAR></CD><CD><TITLE>One night only</TITLE><ARTIST>Bee Gees</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>Polydor</COMPANY><PRICE>10.90</PRICE><YEAR>1998</YEAR></CD><CD><TITLE>Sylvias Mother</TITLE><ARTIST>Dr.Hook</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>CBS</COMPANY><PRICE>8.10</PRICE><YEAR>1973</YEAR></CD><CD><TITLE>Maggie May</TITLE><ARTIST>Rod Stewart</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>Pickwick</COMPANY><PRICE>8.50</PRICE><YEAR>1990</YEAR></CD><CD><TITLE>Romanza</TITLE><ARTIST>Andrea Bocelli</ARTIST><COUNTRY>EU</COUNTRY><COMPANY>Polydor</COMPANY><PRICE>10.80</PRICE><YEAR>1996</YEAR></CD><CD><TITLE>When a man loves a woman</TITLE><ARTIST>Percy Sledge</ARTIST><COUNTRY>USA</COUNTRY><COMPANY>Atlantic</COMPANY><PRICE>8.70</PRICE><YEAR>1987</YEAR></CD><CD><TITLE>Black angel</TITLE><ARTIST>Savage Rose</ARTIST><COUNTRY>EU</COUNTRY><COMPANY>Mega</COMPANY><PRICE>10.90</PRICE><YEAR>1995</YEAR></CD><CD><TITLE>1999 Grammy Nominees</TITLE><ARTIST>Many</ARTIST><COUNTRY>USA</COUNTRY><COMPANY>Grammy</COMPANY><PRICE>10.20</PRICE><YEAR>1999</YEAR></CD><CD><TITLE>For the good times</TITLE><ARTIST>Kenny Rogers</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>Mucik Master</COMPANY><PRICE>8.70</PRICE><YEAR>1995</YEAR></CD><CD><TITLE>Big Willie style</TITLE><ARTIST>Will Smith</ARTIST><COUNTRY>USA</COUNTRY><COMPANY>Columbia</COMPANY><PRICE>9.90</PRICE><YEAR>1997</YEAR></CD><CD><TITLE>Tupelo Honey</TITLE><ARTIST>Van Morrison</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>Polydor</COMPANY><PRICE>8.20</PRICE><YEAR>1971</YEAR></CD><CD><TITLE>The very best of</TITLE><ARTIST>Cat Stevens</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>Island</COMPANY><PRICE>8.90</PRICE><YEAR>1990</YEAR></CD><CD><TITLE>Stop</TITLE><ARTIST>Sam Brown</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>A and M</COMPANY><PRICE>8.90</PRICE><YEAR>1988</YEAR></CD><CD><TITLE>Bridge of Spies</TITLE><ARTIST>T'Pau</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>Siren</COMPANY><PRICE>7.90</PRICE><YEAR>1987</YEAR></CD><CD><TITLE>Private Dancer</TITLE><ARTIST>Tina Turner</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>Capitol</COMPANY><PRICE>8.90</PRICE><YEAR>1983</YEAR></CD><CD><TITLE>Midt om natten</TITLE><ARTIST>Kim Larsen</ARTIST><COUNTRY>EU</COUNTRY><COMPANY>Medley</COMPANY><PRICE>7.80</PRICE><YEAR>1983</YEAR></CD><CD><TITLE>Pavarotti Gala Concert</TITLE><ARTIST>Luciano Pavarotti</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>DECCA</COMPANY><PRICE>9.90</PRICE><YEAR>1991</YEAR></CD><CD><TITLE>The dock of the bay</TITLE><ARTIST>Otis Redding</ARTIST><COUNTRY>USA</COUNTRY><COMPANY>Atlantic</COMPANY><PRICE>7.90</PRICE><YEAR>1987</YEAR></CD><CD><TITLE>Picture book</TITLE><ARTIST>Simply Red</ARTIST><COUNTRY>EU</COUNTRY><COMPANY>Elektra</COMPANY><PRICE>7.20</PRICE><YEAR>1985</YEAR></CD><CD><TITLE>Red</TITLE><ARTIST>The Communards</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>London</COMPANY><PRICE>7.80</PRICE><YEAR>1987</YEAR></CD><CD><TITLE>Unchain my heart</TITLE><ARTIST>Joe Cocker</ARTIST><COUNTRY>USA</COUNTRY><COMPANY>EMI</COMPANY><PRICE>8.20</PRICE><YEAR>1987</YEAR></CD></CATALOG>--></body></html>

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