学步园

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
 * 
 * @author WalkingDog
 *
 */
public class ReadXML
{
	public static void main(String[] args)
	{
		new ReadXML().readXML("E:/input.xml");
	}
	private void readXML(String uri)
	{
		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
		DocumentBuilder builder = null;
		Document document = null;
		try
		{
			builder = factory.newDocumentBuilder();
			document = builder.parse(uri);
		}
		catch (Exception e)
		{
			e.printStackTrace();
			factory = null;
		}
		Element root = document.getDocumentElement();
		readNode(root);
	}
	private void readNode(Node node)
	{
		
		if(!node.hasChildNodes())
		{
			System.out.print(node.getTextContent());
			return;
		}
		StringBuffer buf = new StringBuffer();
		if(node.hasAttributes())
		{
			NamedNodeMap map = node.getAttributes();
			int len = map.getLength();
			for(int i = 0; i < len; i++)
			{
				Node n = map.item(i);
				buf.append(" " + n.getNodeName() + "=\"" + n.getNodeValue() + "\"");
			}
		}
		System.out.print("<" + node.getNodeName() + buf + ">");
		NodeList list = node.getChildNodes();
		int length = list.getLength();
		for(int i = 0; i < length; i++)
		{
			Node n = list.item(i);
			readNode(n);
		}
	}
}