XML Reading Using Java Servlet

I need some help in reading xml file using java servlet.
May i have some sample codes to read xml files?
I would really appreciate your help. Thanks!!!

This grabs a url and parses it with a servlet.
URL befreeUrl = new URL(urlString);
uri = new URI(urlString);
URLConnection yc = befreeUrl.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(yc.getInputStream()));
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
factory.setValidating(true);
out = new OutputStreamWriter(System.out, "UTF8");
DefaultHandler handler = new BeFreeRequestSAXParser(); /* custom handler class */;
parser.parse(uri.toString(), handler);
in.close();

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