XML-Datei auslesen und die Attributwerte als Baum darstellen

 /**
  * 
  */
 package de.tutorials;
 
 import java.awt.Dimension;
 import java.io.File;
 
 import javax.swing.JFrame;
 import javax.swing.JScrollPane;
 import javax.swing.JTree;
 import javax.swing.tree.DefaultMutableTreeNode;
 import javax.xml.parsers.DocumentBuilderFactory;
 
 import org.w3c.dom.Document;
 import org.w3c.dom.Node;
 import org.w3c.dom.NodeList;
 
 /**
  * @author Tom
  * 
  */
 public class XMLJTreeExample extends JFrame {
 
 	public XMLJTreeExample() {
 		super("XMLJTreeExample");
 		setDefaultCloseOperation(EXIT_ON_CLOSE);
 		DefaultMutableTreeNode root = new DefaultMutableTreeNode();
 
 		synchronizeXmlWithModel(new File(
 		        "E:/jboss/4.0.2/jboss-4.0.2/docs/examples/jca/mysql-ds.xml"),
 				root);
 
 		JTree tree = new JTree(root);
 		JScrollPane scrollPane = new JScrollPane(tree);
 		scrollPane.setPreferredSize(new Dimension(180, 640));
 		add(scrollPane);
 
 		pack();
 		setVisible(true);
 	}
 
 	private void synchronizeXmlWithModel(File file, DefaultMutableTreeNode root) {
 		try {
 			Document doc = DocumentBuilderFactory.newInstance()
 		    		.newDocumentBuilder().parse(file);
 			root.setUserObject(file.getName());
 			buildTreeModelByTreeWalk(doc, root);
 
 		} catch (Exception e) {
 			e.printStackTrace();
 		}
 	}
 
 	private void buildTreeModelByTreeWalk(Node node,
 			DefaultMutableTreeNode parentTreeNode) {
 		DefaultMutableTreeNode treeNode = new DefaultMutableTreeNode();
 
 		switch (node.getNodeType()) {
 		case Node.COMMENT_NODE: {
 			treeNode.setUserObject(node.getTextContent());
 
 		}
 			break;
 		case Node.ELEMENT_NODE: {
 			treeNode.setUserObject(node.getNodeName());
 		}
 			break;
 		case Node.TEXT_NODE: {
 			String textContent = node.getTextContent().trim();
 			if (textContent.equals("")) {
 				return;
 			}
 			treeNode.setUserObject(textContent);
 		}
 			break;
 		}
 
 		parentTreeNode.add(treeNode);
 
 		if (node.hasChildNodes()) {
 			NodeList list = node.getChildNodes();
 			for (int i = 0, len = list.getLength(); i < len; i++) {
 				buildTreeModelByTreeWalk(list.item(i), treeNode);
 			}
 		}
 	}
 
 	/**
 	 * @param args
 	 */
 	public static void main(String[] args) {
 		new XMLJTreeExample();
 	}
 }

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- $Id: mysql-ds.xml,v 1.3.2.1 2004/12/01 11:46:00 schrouf Exp $ -->
 <!--  Datasource config for MySQL using 3.0.9 available from:
 http://www.mysql.com/downloads/api-jdbc-stable.html
 -->
 
 <datasources>
   <local-tx-datasource>
 	<jndi-name>MySqlDS</jndi-name>
 	<connection-url>jdbc:mysql://mysql-hostname:3306/jbossdb</connection-url>
 	<driver-class>com.mysql.jdbc.Driver</driver-class>
 	<user-name>x</user-name>
 	<password>y</password>
     <exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name>
 	<!-- sql to call when connection is created
 	<new-connection-sql>some arbitrary sql</new-connection-sql>
 	  -->
 	<!-- sql to call on an existing pooled connection when it is obtained from pool 
 	<check-valid-connection-sql>some arbitrary sql</check-valid-connection-sql>
 	  -->
 
 	<!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) -->
 	<metadata>
 	   <type-mapping>mySQL</type-mapping>
 	</metadata>
   </local-tx-datasource>
 </datasources>