Java中Dom4j解析XML

与利用DOM、SAX、JAXP机制来解析xml相比DOM4J表现更优秀，具有性能优异、功能强大和极端易用使用的特点，只要懂得DOM基本概念，就可以通过dom4j的api文档来解析xml.dom4j是一套开源的api。实际项目中，往往选择dom4j来作为解析xml的利器。

sax解析: http://www.cnblogs.com/gavinYang/p/3505543.html
jdom解析: http://www.cnblogs.com/gavinYang/p/3505530.html  
dom解析: http://www.cnblogs.com/gavinYang/p/3505523.html

 package com.test;

 import java.io.File;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;

 import org.dom4j.Document;
 import org.dom4j.Element;
 import org.dom4j.io.SAXReader;

 public class Dom4jXML {

     public static void main(String[] args) {
         SAXReader saxReader = new SAXReader();
         File file = new File("e:/People.xml");

         try {
             Document document = saxReader.read(file);
             Element root = document.getRootElement();
             List<People> peoples = new ArrayList<People>();
             for (Iterator iterator = root.elementIterator(); iterator.hasNext();) {
                 People people = new People();
                 Element peopleElement = (Element) iterator.next();
                 people.setId(peopleElement.attribute("id").getValue());
                 for (Iterator childIterator = peopleElement.elementIterator(); childIterator.hasNext();) {
                     Element childPeopleElement = (Element) childIterator.next();
                     if (childPeopleElement.getName().equals("Name")) {
                         people.setEnglishName(childPeopleElement.attribute("en").getValue());
                         people.setName(childPeopleElement.getText());
                     } else if (childPeopleElement.getName().equals("Age")) {
                         people.setAge(childPeopleElement.getText());
                     }
                 }
                 peoples.add(people);
             }

             for (People p : peoples) {
                 System.out.println(p.getId()+"\t"+p.getName()+"\t"+p.getEnglishName()+"\t"+p.getAge());
             }  

         } catch (Exception e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }

     }
 }

People对象

 package com.test;

 public class People {
     private String id;
     private String name;
     private String englishName;
     private String age;
     public String getId() {
         return id;
     }
     public void setId(String id) {
         this.id = id;
     }
     public String getName() {
         return name;
     }
     public void setName(String name) {
         this.name = name;
     }
     public String getEnglishName() {
         return englishName;
     }
     public void setEnglishName(String englishName) {
         this.englishName = englishName;
     }
     public String getAge() {
         return age;
     }
     public void setAge(String age) {
         this.age = age;
     }

 }

xml:

 <?xml version="1.0" encoding="UTF-8"?>
 <PeopleList>
     <People id="1">
         <Name en='zhangsan'>张三</Name>
         <Age>20</Age>
     </People>
     <People id="2">
         <Name en='lisi'>李四</Name>
         <Age>30</Age>
     </People>
 </PeopleList>