SAX解析XML

package simpleTest;
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;

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("\n前缀映射: " + prefix +" 开始!"+ " 它的URI是:" + uri);
}

public void endPrefixMapping( String prefix )
{
System.out.println("\n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
{
System.out.println("******元素解析结束********");
}
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("D:\\test\\simpleTest\\classes\\simpleTest\\test.xml"),testsax);

}catch(IOException e)
{
e.printStackTrace();
}catch(SAXException e)
{
e.printStackTrace();
}catch(Exception e)
{
e.printStackTrace();
}

}
}
XML文件如下:
<?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>