SAX解析XML

 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>