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用javascript读取xml文件读取节点数据

2014-08-12 16:56 645 查看

下面代码是读取的节点数据，还有一种情况是读取节点属性数据。

<head>
<title></title>
<script type="text/javascript">
var objLength = null;
var xmlHttp;
var strurl = "";
function ajaxrequst() {
if (window.ActiveXObject) {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
else {
xmlHttp = new XMLHttpRequest();
}
try {
strurl = "/data/rdzz.xml";
xmlHttp.onreadystatechange = LoadXmlFile;
xmlHttp.open("GET", strurl + "?time=" + (new Date()).getTime(), true);
xmlHttp.send(null);
}
catch (e) {
}
}
function LoadXmlFile() {
var content = "";
if (xmlHttp.readyState == 4) {
if (xmlHttp.status == 200) {
var xmlDOM = xmlHttp.responseXML;
var xmlRoot = xmlDOM.documentElement;
try {
var objLength = xmlRoot.getElementsByTagName("Item");
for (var i = 0; i < objLength.length; i++) {
var elementtitle = objLength[i].getElementsByTagName('NewsTitle')[0];
var elementtime = objLength[i].getElementsByTagName('NewsTime')[0];
var elementurl= objLength[i].getElementsByTagName('NewsUrl')[0];
// LastValue = objLength[i].getAttribute( "LastValue" )
// Prediction = objLength[i].getAttribute( "Prediction" )
// Actual = objLength[i].getAttribute( "Actual" )
// importance = objLength[i].getAttribute( "importance" )
// newstime = objLength[i].getAttribute( "NewsTime" )
var title = elementtitle.textContent || elementtitle.text;
var time = elementtime.textContent || elementtime.text;
var url = elementurl.textContent || elementurl.text;
content += "<li><dl><dd>" + time + "</dd><dd><a href='" + url + "' target='blank'>" + title + "</a></dd></dl></li>";
}
document.getElementById("newsInfo").innerHTML = content;
}
catch (e) {
}
}
}
}
</script>
</head>
<body>
<input id="Button1" type="button" value="read" onclick="ajaxrequst()" />
<div id="newsInfo"></div>
</body>

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标签： xml文件节点

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