用Ajax讀取XML格式的數

　　用Ajax讀取XML格式的數據只需要讀取XMLHttpRequest對象返回的responseXML屬性即可代碼如下

　　以下是引用片段

<!DOCTYPE html PUBLIC //WC//DTD XHTML  Strict//EN

strictdtd>

<html>

<head>

<title>Ajax Hello World</title>

<script type=text/javascript>

var xmlHttp;

function createXMLHttpRequest(){

if(windowActiveXObject){

xmlHttp = new ActiveXObject(MicrosoftXMLHTTP);

}

else if(windowXMLHttpRequest){

xmlHttp = new XMLHttpRequest();

}

}

function startRequest(){

createXMLHttpRequest();

try{

xmlHttponreadystatechange = handleStateChange;

xmlHttpopen(GET dataxml true);

xmlHttpsend(null);

}catch(exception){

alert(您要訪問的資源不存在!);

}

}

function handleStateChange(){

if(xmlHttpreadyState == ){

if (xmlHttpstatus ==  || xmlHttpstatus == ){

// 取得XML的DOM對象

var xmlDOM = xmlHttpresponseXML;

// 取得XML文檔的根

var root = xmlDOMdocumentElement;

try

{

// 取得<info>結果

var info = rootgetElementsByTagName(info);

// 顯示返回結果

alert(responseXMLs value:  + info[]firstChilddata);

}catch(exception)

{

}

}

}

}

</script>

</head>

<body>

<div>

<input type=button value=return ajax responseXMLs value

onclick=startRequest(); />

</div>

</body>

</html>

Server dataxml

　　><?xml version= encoding=GB ?>

<root>

<info>hello world!</info>

</root>

From:http://tw.wingwit.com/Article/program/Web/201311/29853.html