用Ajax读取XML格式
数据
只需要读取XMLHttpRequest对象返回responseXML属性即可
代码如下:1、Client - helloworld.htm
<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\"
\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">
<html>
<head>
<title>Ajax Hello World</title>
<script type=\"text/javascript\">
var xmlHttp;
function createXMLHttpRequest
{
(window.ActiveXObject){xmlHttp =
ActiveXObject(\"Microsoft.XMLHTTP\");}
(window.XMLHttpRequest){xmlHttp =
XMLHttpRequest;}
}
function startRequest
{createXMLHttpRequest
;try{
xmlHttp.onreadystatechange = handleStateChange;
xmlHttp.open(\"GET\", \"data.xml\",
true);
xmlHttp.send(null);
}catch(exception){
alert(\"您要访问
资源不存在!\");}
}
function handleStateChange
{ (xmlHttp.readyState 
4){ (xmlHttp.status 200 || xmlHttp.status 0){// 取得XML
DOM对象var xmlDOM = xmlHttp.responseXML;
// 取得XML文档
根var root = xmlDOM.documentElement;
try
{
// 取得<info>结果
var info = root.getElementsByTagName(\'info\');
// 显示返回结果
alert(
\"responseXML\'s value: \" + info[0].firstChild.data);
}catch(exception)
{
}
}
}
}
</script>
</head>
<body>
<div>
<input type=\"button\" value=\"
ajax responseXML\'s value\"onclick=\"startRequest
;\" /></div>
</body>
</html>
2、Server - data.xml
<?xml version=\"1.0\" encoding=\"GB2312\" ?>
<root>
<info>hello world!</info>
</root>
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