SAX操作XML

XML文件代码如下：

<?xml version="1.0" encoding="UTF-8"?>
<person>
    <p1>
        <name>zhangsan</name>
        <age>23</age>
    </p1>
    <p2>
        <name>lisi</name>
        <age>20</age>
    </p2>
</person>

SAX操作代码：

package cn.itcast.sax;



import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

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

public class Textsax {

    /**
     * @param args
     * @throws Exception 
     * @throws SAXException 
     */
    public static void main(String[] args) throws SAXException, Exception {

        SAXParserFactory parserFactory = SAXParserFactory.newInstance();

        SAXParser saxParser = parserFactory.newSAXParser();

        saxParser.parse("src/p.xml", new myDefault1());

    }

}


class myDefault1 extends DefaultHandler{
    boolean flag = false;
    int index=1;
    @Override
    public void startElement(String uri, String localName, String qName,
            Attributes attributes) throws SAXException {
        //System.out.print("<"+qName+">");
        if ("name".equals(qName))
        {
            flag=true;
        }
    }


    @Override
    public void characters(char[] ch, int start, int length)
            throws SAXException {
        //System.out.print(new String(ch,start,length));
        if (flag==true&&index == 1)
        {
            System.out.println(new String(ch,start,length));
        }
    }

    @Override
    public void endElement(String uri, String localName, String qName)
            throws SAXException {

        //System.out.print("</"+qName+">");

        if("name".equals(qName))
        {
            flag = false;
            index++;
        }

    }

}