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JavaScript 解析XML

2009-04-25 16:23 155 查看

<html>
<body>
<script language="javascript" type="text/javascript">
//xml字符串
var xmlstring = '<?xml version=/"1.0/"?>/n'
+ '<shoppingcart date=/"14-10-2007/" total=/"123.45/">/n'
+ ' <item code=/"12345/">/n'
+ ' <name>Widget</name>/n'
+ ' <quantity>1</quantity>/n'
+ ' </item>/n'
+ ' <item code=/"54321/">/n'
+ ' <name>Another Widget</name>/n'
+' <quantity>2</quantity>/n'
+ ' </item>/n'
+ '</shoppingcart>';

alert(xmlstring);

try
{

// convert the string to an XML object
// 用于 IE 的代码：
if (window.ActiveXObject)
{
alert("activexobject");
var xmlobject =new ActiveXObject("Microsoft.XMLDOM");
xmlobject.async="false";
xmlobject.loadXML(xmlstring);
}

// 用于 Mozilla, Firefox, Opera, 等浏览器的代码：
else
{
alert("firefox");
var parser=new DOMParser();
var xmlobject =parser.parseFromString(xmlstring,"text/xml");
}

}
catch (e)
{
alert('error');

}

// get the XML root item

var root = xmlobject.getElementsByTagName('shoppingcart')[0];
var date = root.getAttribute("date");

alert("shoppingcart date=" + date);

var items = root.getElementsByTagName("item");
for (var i = 0 ; i < items.length ; i++) {

// get one item after another
var item = items[i];
// now we have the item object, time to get the contents
// get the name of the item

var name = item.getElementsByTagName("name")[0].firstChild.nodeValue;
// get the quantity

var quantity = item.getElementsByTagName("quantity")[0].firstChild.nodeValue;

alert("item #" + i + ": name=" + name + " quantity=" + quantity);

}
</script>
</body>
</html>

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