domparser.java

一个XML文件的两种解析方法

/**
 * 
 */
import java.io.IOException;

import javax.xml.parsers.*;

import org.w3c.dom.*;
import org.xml.sax.SAXException;

/**
 * @author Teness
 *
 */
public class DomParser {

	public void parser(String FileName){
		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
		DocumentBuilder builder = null;
		Document doc = null;
		try {
			builder = factory.newDocumentBuilder();
		} catch (ParserConfigurationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		try {
			doc=builder.parse(FileName);
		} catch (SAXException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		doc.normalize();
		NodeList nl = doc.getChildNodes();
		for (int i = 0; i < nl.getLength(); i++)
		{
			printAttribute(nl.item(i));
		}
	}
	
	public void printAttribute(Node node){
		Node temp = node;
		if (!temp.getNodeName().equals("#comment") && !temp.getNodeName().equals("#text")){
			NamedNodeMap attr = temp.getAttributes();
			if (attr != null)
			{
				for (int i = 0; i < attr.getLength(); i++)
				{
					System.out.print(attr.item(i).getNodeName()+" = "+attr.item(i).getNodeValue()+"   ");
				}
			}
			
			NodeList children = temp.getChildNodes();
			if (children != null)
			{
				for (int i = 0; i < children.getLength() ; i++)
				{
					printAttribute(children.item(i));
				}
			}
			System.out.println();
		}
	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		DomParser dp = new DomParser();
		dp.parser("xmlfile.xml");
	}

}