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()+"	"+p.getName()+"	"+p.getEnglishName()+"	"+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>