SAX½âÎöXML(Ô´´úÂ룩

package book.xml;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Stack;
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 SaxXML {
 public static List readXML(String fileName)throws Exception{
  SAXParserFactory spf=SAXParserFactory.newInstance();//´´½¨SAX½âÎöÆ÷¹¤³§¶ÔÏó
  SAXParser saxParser=spf.newSAXParser();//ʹÓýâÎöÆ÷¹¤³§´´½¨½âÎöÆ÷ʵÀý
 
  //´´½¨SAX½âÎöÆ÷ҪʹÓõÄʼþ¼àÌýÆ÷¶ÔÏó
  StudentSAXHandler handler=new StudentSAXHandler();
  saxParser.parse(new File(fileName),handler);//¿ªÊ¼½âÎöÎļþ
  return handler.getResult();//»ñÈ¡½á¹û
 }
 public static void main(String[] args) {
  String filename="student.xml";
  List studentBeans=null;
  try{
   studentBeans=SaxXML.readXML(filename);
  }catch(Exception e){
   System.err.println(e.getMessage());
  }
  if(studentBeans!=null){
   System.out.println("½âÎöstudent.xmlÎĵµµÃµ½µÄѧÉúÐÅÏ¢£º");
   for(int i=0;i<studentBeans.size();i++){
    System.out.println(studentBeans.get(i).toString());
   }
  }
 }
 /**
  * SAXµÄʼþ¼àÌýÆ÷£¬µ±´¦ÀíÌض¨µÄXMLÎļþµÄʱºò£¬¾ÍÐèҪΪ
  * Æä´´½¨Ò»¸ö¼Ì³ÐDefaultHandlerµÄÀàÀ´´¦ÀíÌض¨µÄʼþ
  * ¿ÉÒÔ˵£¬Õâʵ¼ÊÉϾÍÊÇSAX´¦ÀíXMLÎļþµÄºËÐÄ
  * @author wuhailin
  *
  */
 static class StudentSAXHandler extends DefaultHandler{
  //±£´æÒѾ­¶Áµ½¹ýµ«»¹Ã»ÓйرյıêÇ©
  Stack tagsStack=new Stack();
  List studentBeans=new ArrayList();
  StudentBean bean=null;
  /**µ±Óöµ½ÎĵµµÄ¿ªÍ·µÄʱºò£¬µ÷ÓÃÕâ¸ö·½·¨£¬¿ÉÒÔÔÚÆäÖÐ×öһЩԤ´¦ÀíµÄ¹¤×÷*/
  public void startDocument()throws SAXException{
   System.out.println("--------Parse begin---------");
  }