java 해석 xml에서 자주 사용하는 몇 가지 방식 총결

여러 가지 방법을 다 써 보았다.지금 총결산해 봅시다.자주 기억이 안 나요. 자료를 찾아야 해요.지금 총결산해 봅시다.
xml 파일은 다음과 같습니다.

<?xml version="1.0" encoding="ISO-8859-1"?>
<bookstore>
<book category="COOKING">
  <title lang="en">Everyday Italian</title>
  <author>Giada De Laurentiis</author>
  <year>2005</year>
  <price>30.00</price>
  <aa>
   <bb>
    <cc>ccccc</cc>
   </bb>
  </aa>
</book>
<book category="CHILDREN">
  <title lang="en">Harry Potter</title>
  <author>J K. Rowling</author>
  <year>2005</year>
  <price>29.99</price>
</book>
<book category="WEB">
  <title lang="en">XQuery Kick Start</title>
  <author>James McGovern</author>
  <author>Per Bothner</author>
  <author>Kurt Cagle</author>
  <author>James Linn</author>
  <author>Vaidyanathan Nagarajan</author>
  <year>2003</year>
  <price>49.99</price>
</book>
<book category="WEB">
  <title lang="en">Learning XML</title>
  <author>Erik T. Ray</author>
  <year>2003</year>
  <price>39.95</price>
</book>
</bookstore>

package sort;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
public class D2 {
 /**
  *  DOM 
  * @param args
  * @throws Exception
  */
 public static void main(String[] args) throws Exception{

  DocumentBuilder sb =  DocumentBuilderFactory.newInstance().newDocumentBuilder();

  Document root = sb.parse(D2.class.getClassLoader().getResourceAsStream("NewFile.xml"));

  System.out.println(root.getChildNodes().item(0).getNodeName());

 }
}

package sort;
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;
import com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl;
public class D {
 /**
  *  SAX 
  * @param args
  * @throws Exception
  */
 public static void main(String[] args) throws Exception {

  SAXParserFactory factory = SAXParserFactoryImpl.newInstance();
  SAXParser parser = factory.newSAXParser() ;
  parser.parse(D.class.getClassLoader().getResourceAsStream("NewFile.xml"), 
    new DefaultHandler(){
     @Override
     public void characters(char[] ch, int start, int length)
       throws SAXException {
      System.out.println("characters");
     }
     @Override
     public void endDocument() throws SAXException {
      // TODO Auto-generated method stub
      System.out.println("endDocument");
     }
     @Override
     public void endElement(String uri, String localName,
       String qName) throws SAXException {
      // TODO Auto-generated method stub
      System.out.println("endElement");
     }
     @Override
     public void startDocument() throws SAXException {
      // TODO Auto-generated method stub
      System.out.println("startDocument");
     }
     @Override
     public void startElement(String uri, String localName,
       String qName, Attributes attributes)
       throws SAXException {
      // TODO Auto-generated method stub
      System.out.println("startElement");
     }

  }) ;

  
 }

}

package sort;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;
public class D3 {
 /**
  *  XMLStream 
  * @param args
  * @throws Exception
  */
 public static void main(String[] args) throws Exception {
  XMLInputFactory xmlFactor = XMLInputFactory.newFactory();
  XMLStreamReader reader = 
   xmlFactor.createXMLStreamReader(D3.class.getClassLoader().getResourceAsStream("NewFile.xml"));
  while(reader.hasNext()){
   int point = reader.next() ;
   switch(point){
   case XMLStreamReader.START_ELEMENT :
    System.out.println("start_element");
   case XMLStreamReader.END_ELEMENT :
    // do something...
   }
  }
 }
}

package sort;
import org.dom4j.Document;
import org.dom4j.io.SAXReader;
/**
 *  DOM4j XPATH XML ( jar )
 * @author zhoufeng
 *
 */
public class D4 {

 public static void main(String[] args) throws Exception{

  SAXReader reader = new SAXReader() ;

  Document root = reader.read(D4.class.getClassLoader().getResourceAsStream("NewFile.xml"));

  /*  cc  */
  System.out.println(root.selectNodes("//cc").size());;

  /* book ， author */
  System.out.println((root.selectNodes("//book[author]").size()));;

  /*  book ， category    */
  System.out.println((root.selectNodes("//book[@category]").size()));;

  /*  book ， author James McGovern ， category WEB    price */
  System.out.println(root.selectNodes("//book[author='James McGovern'][@category='WEB']/price").size());;

 }
}