xml资料保存4

第二种，DOM4J实现方法：

1. import java.io.*;   
2. import java.util.*;   
3. import org.dom4j.*;   
4. import org.dom4j.io.*;   
5.   
6. public class MyXMLReader2DOM4J {   
7. public static void main(String arge[]) {   
8.   long lasting = System.currentTimeMillis();   
9.   try {   
10.     File f = new File("data_10k.xml");   
11.     SAXReader reader = new SAXReader();   
12.     Document doc = reader.read(f);   
13.     Element root = doc.getRootElement();   
14.     Element foo;   
15.    for (Iterator i = root.elementIterator("VALUE"); i.hasNext();) {   
16.      foo = (Element) i.next();   
17.      System.out.print("车牌号码:" + foo.elementText("NO"));   
18.      System.out.println("车主地址:" + foo.elementText("ADDR"));   
19.     }   
20.    } catch (Exception e) {   
21.     e.printStackTrace();   
22.    }   
23. }   
24. }  

import java.io.*;import java.util.*;import org.dom4j.*;import org.dom4j.io.*;public class MyXMLReader2DOM4J { public static void main(String arge[]) {  long lasting = System.currentTimeMillis();  try {   File f = new File("data_10k.xml");   SAXReader reader = new SAXReader();   Document doc = reader.read(f);   Element root = doc.getRootElement();   Element foo;   for (Iterator i = root.elementIterator("VALUE"); i.hasNext();) {    foo = (Element) i.next();    System.out.print("车牌号码:" + foo.elementText("NO"));    System.out.println("车主地址:" + foo.elementText("ADDR"));   }  } catch (Exception e) {   e.printStackTrace();  } }}

第三种 JDOM实现方法：
import java.io.*;    
import java.util.*;    
import org.jdom.*;    
import org.jdom.input.*;    
   
public class MyXMLReader2JDOM {    
public static void main(String arge[]) {    
  long lasting = System.currentTimeMillis();    
  try {    
    SAXBuilder builder = new SAXBuilder();    
    Document doc = builder.build(new File("data_10k.xml"));    
    Element foo = doc.getRootElement();    
    List allChildren = foo.getChildren();    
   for (int i = 0; i < allChildren.size(); i++) {    
     System.out.print("车牌号码:"+ ((Element) allChildren.get(i)).getChild("NO").getText());    
     System.out.println("车主地址:"+ ((Element) allChildren.get(i)).getChild("ADDR").getText());    
    }    
   } catch (Exception e) {    
    e.printStackTrace();    
   }    
}    
}   
import java.io.*;import java.util.*;import org.jdom.*;import org.jdom.input.*;public class MyXMLReader2JDOM { public static void main(String arge[]) {  long lasting = System.currentTimeMillis();  try {   SAXBuilder builder = new SAXBuilder();   Document doc = builder.build(new File("data_10k.xml"));   Element foo = doc.getRootElement();   List allChildren = foo.getChildren();   for (int i = 0; i < allChildren.size(); i++) {    System.out.print("车牌号码:"+ ((Element) allChildren.get(i)).getChild("NO").getText());    System.out.println("车主地址:"+ ((Element) allChildren.get(i)).getChild("ADDR").getText());   }  } catch (Exception e) {   e.printStackTrace();  } }}
第四种SAX实现方法：
import javax.xml.parsers.SAXParser;    
import javax.xml.parsers.SAXParserFactory;    
   
import org.xml.sax.Attributes;    
import org.xml.sax.InputSource;    
import org.xml.sax.SAXException;    
import org.xml.sax.helpers.DefaultHandler;    
   
public class MyXMLReader2SAX extends DefaultHandler {    
   
java.util.Stack tags = new java.util.Stack();    
   
public MyXMLReader2SAX() {    
  super();    
}    
   
public static void main(String args[]) {    
  long lasting = System.currentTimeMillis();    
  try {    
    SAXParserFactory sf = SAXParserFactory.newInstance();    
    SAXParser sp = sf.newSAXParser();    
    MyXMLReader2SAX reader = new MyXMLReader2SAX();    
    sp.parse(new InputSource("data_10k.xml"), reader);    
   } catch (Exception e) {    
    e.printStackTrace();    
   }    
   
   System.out.println("运行时间：" + (System.currentTimeMillis() - lasting)    
     + "毫秒");    
}    
   
public void characters(char ch[], int start, int length)    
   throws SAXException {    
   String tag = (String) tags.peek();    
  if (tag.equals("NO")) {    
    System.out.print("车牌号码：" + new String(ch, start, length));    
   }    
  if (tag.equals("ADDR")) {    
    System.out.println("地址:" + new String(ch, start, length));    
   }    
}    
   
public void startElement(String uri, String localName, String qName,    
    Attributes attrs) {    
   tags.push(qName);    
}    
}