Examples using javascript to run a GET on another URL, retrieve the xml returned and look up a specific node?
Question
如何从javascript中的特定网址获取xml文档，然后查找特定的子节点并获取值？
2 answers
solution1
3 2010-02-12 16:13:42
You can use XMLHttpRequest to make an AJAX call to the url, as long as it's on the same domain (AJAX has same-origin policy). Also, take a look here for some tips on manipulating XML in Javascript.
If you are using jQuery, you can use jQuery.ajax and set the datatype to XML .
If your XML resides on another URL (ie, not on your domain), then things get trickier. You'll need to use something server-side (like PHP, ASP, or JSP's) that generates a Javascript file that contains the XML (which it grabs from the URL) stored in a string. Then, in your page you'll need a script tag that points to this Javascript file.
solution2
1 ACCPTED 2010-02-12 16:17:13
Using jQuery it's really easy because you an 'query' the XML document like you would with an X/HTML document.
Let's say you had a simple xml document like this...
<book>
<title>Catcher in the Rye</title>
<author>J.D. Salinger</author>
</book>
You can use jQuery to load the document and parse out particular nodes.
<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js"></script>
<script type="text/javascript">
$(function() {
$.get("/book.xml", function(responseXml) {
var xml = $(responseXml);
var title = $("title", xml).text();
var author = $("author", xml).text();
alert(title); // >> Catcher in the Rye
alert(author); // >> J.D. Salinger
});
});
</script>
</head>
<body>
</body>
</html>
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