import  org.xml.sax.Attributes;

import  org.xml.sax.SAXException;

import  org.xml.sax.Locator;

import  org.xml.sax.ContentHandler;

import  org.xml.sax.InputSource;

import  org.xml.sax.helpers.DefaultHandler;

import  java.io.IOException;

import  javax.xml.parsers.SAXParser;

import  javax.xml.parsers.SAXParserFactory;

class  TestSAX  extends  DefaultHandler {

    

     private  StringBuffer buf;

     private  String str;

     public  TestSAX() {

         super (); 

    }

    

//     public void setDocumentLocator(Locator locator){}

    

     public   void  startDocument()  throws  SAXException {

        buf = new  StringBuffer();

        System.out.println( " *******开始解析文档******* " );

    }

    

     public   void  endDocument()  throws  SAXException {        

        System.out.println( " *******文档解析结束******* " );

    }

    

     public   void  startPrefixMapping( String prefix, String uri ) {

        System.out.println( "  前缀映射:  "   +  prefix  + "  开始! " +   "  它的URI是: "   +  uri);

    }

    

     public   void  endPrefixMapping( String prefix ) {

        System.out.println( "  前缀映射:  " + prefix + "  结束! " );

    }

    

//     public void processingInstruction( String target, String instruction )throws SAXException{}

    

//     public void ignorableWhitespace( char[] chars, int start, int length ) throws SAXException {}

    

//     public void skippedEntity( String name ) throws SAXException {}

    

     public   void  startElement(String namespaceURI,String localName,String qName,Attributes atts) {

        System.out.println( " *******开始解析元素******* " );    

        System.out.println( " 元素名 " + qName);        

         for ( int  i = 0 ;i < atts.getLength();i ++ ) {

            System.out.println( " 元素名 " + atts.getLocalName(i) + " 属性值 " + atts.getValue(i));

        }

    }

    

     public   void  endElement(String namespaceURI,String localName,String fullName ) throws  SAXException {

//         buf.trimToSize();

        str  =  buf.toString(); 

        System.out.println( " buf =  " + buf + "  || length =  " + buf.length());

        System.out.println( " str =  " + str.trim() + "  || length =  " + str.trim().length());

        buf.delete( 0 ,buf.length());

        System.out.println( " ****** " + namespaceURI + " 元素解析结束 " + localName + " ******** " + fullName);

    }

    

     public   void  characters(  char [] chars,  int  start,  int  length ) throws  SAXException {

         // 将元素内容累加到StringBuffer中 

        buf.append(chars,start,length);

    }

    

     public   static   void  main(String args[]) {

         try {

            SAXParserFactory sf  =  SAXParserFactory.newInstance();

            SAXParser sp  =  sf.newSAXParser();

            TestSAX testsax = new  TestSAX();

            sp.parse( new  InputSource( " test1.xml " ),testsax);

        } catch (IOException e) {

            e.printStackTrace(); 

        } catch (SAXException e) {

            e.printStackTrace(); 

        } catch (Exception e) {

            e.printStackTrace(); 

        }

    }

}

<? xml version="1.0" encoding="GB2312" ?>

< row >

< person >

< name > 王小明 </ name >

< college > 信息学院 </ college >  

< telephone > 6258113 </ telephone >

< notes > 男,1955年生,博士，95年调入海南大学 </ notes >

</ person >

</ row >