dom4j是一个java的XML API，类似jdom，用来读写XML文件，它性能优异、功能强大和极易使用等特点

所用jar包：dom4j-1.6.1.jar

需要解析的xml文件：people.xml

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首先根据xml文档构建javabean

People.java

Student.java

Teacher.java

 解析代码：

package com.test.xml;import java.io.File;import java.net.URISyntaxException;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import org.dom4j.Document;import org.dom4j.DocumentException;import org.dom4j.Element;import org.dom4j.io.SAXReader;import com.test.xml.element.People;import com.test.xml.element.Student;import com.test.xml.element.Teacher;public class XmlParser {	@SuppressWarnings("unchecked")	public static People parseXml(String xmlPath){		File xmlFile = new File(xmlPath);		System.out.println(xmlFile.getPath());		if(xmlFile.exists()){			SAXReader reader = new SAXReader();			People people = new People();			try {			    //读入文档流				Document document = reader.read(xmlFile);				//获取根节点				Element root = document.getRootElement();								List
     
       students = new ArrayList
      
       ();				List
       
         teachers = new ArrayList
        
         ();				people.setCity(root.attributeValue("city"));				//解析student节点				for(Iterator iterator = root.elementIterator("student");iterator.hasNext();){					Element eStudent = (Element) iterator.next();					Student student = new Student(eStudent.attributeValue("name"), Integer.parseInt(eStudent.attributeValue("age")));					students.add(student);				}				//解析teacher节点				for(Iterator iterator = root.elementIterator("teacher");iterator.hasNext();){					Element eTeacher = (Element) iterator.next();					Teacher teacher = new Teacher(eTeacher.attributeValue("name"), Integer.parseInt(eTeacher.attributeValue("age")));					teachers.add(teacher);				}				people.setStudent(students);				people.setTeacher(teachers);				System.out.println("parse success!");			} catch (DocumentException e) {				e.printStackTrace();			}			return people;		}else{			System.out.println("file is not exist!");			return null;		}	}		public static void main(String[] args) throws URISyntaxException{		String xmlPath = "";		xmlPath = "D:/Program Files/eclipse-jee/workspace/TEST/src/com/test/xml/people.xml";		System.out.println("file full path is "+xmlPath);		//解析people.xml		People p = parseXml(xmlPath);				//处理解析结果		System.out.println(p.getCity());		List
         
           sList = p.getStudent();		List
          
            tList = p.getTeacher(); for(Student s:sList){ System.out.println(s.getName()+"--"+s.getAge()); } for(Teacher t:tList){ System.out.println(); } }}