SAX解析xml

package com.util.XmlUtil;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.stream.events.Attribute;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

public class SaxDemo implements XmlDocument {

	@Override
	public void createXml(String fileName) {

	}

	@Override
	public void parseXml(String fileName) {
		SAXParserFactory saxfac = SAXParserFactory.newInstance();
		try {
			SAXParser saxparser = saxfac.newSAXParser();
			InputStream is = new FileInputStream(fileName);
			saxparser.parse(is, new MySAXHandler());
		} catch (ParserConfigurationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SAXException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {

		}
	}
	public static void main(String[] args){
		SaxDemo sd = new SaxDemo();
		sd.parseXml("employees.xml");
	}

}

class MySAXHandler extends DefaultHandler {
	boolean hasAttribute = false;
	Attributes attributes = null;

	public void startDocument() throws SAXException {
		System.out.println("文档开始打印了");
	}

	public void endDocument() throws SAXException {
		System.out.println("文档打印结束 ");
	}

	public void startElement(String uri, String localName, String qName,
			Attributes attributes) throws SAXException {
		if(qName.equals("employees")){
			return;
		}
		if(qName.equals("employee")){
			System.out.println("qName");
		}
		if(attributes.getLength()>0){
			this.attributes = attributes;
			this.hasAttribute = true;
		}
	}

	public void endElement(String uri, String localName, String qName)
			throws SAXException {
		if (this.hasAttribute && this.attributes.getLength() > 0) {
			for (int i = 0; i < attributes.getLength(); i++) {
				System.out.println(attributes.getQName(0)
						+ attributes.getValue(0));
			}
		}
	}

	public void characters(char[] ch, int start, int length)
			throws SAXException {
		System.out.println(new String(ch, start, length));
	}
	
	
}