dom4j生成和解析xml文件

package com.test;  
 
import java.io.File;  
import java.io.PrintWriter;  
import java.util.Iterator;  
import org.dom4j.Document;  
import org.dom4j.DocumentException;  
import org.dom4j.DocumentHelper;  
import org.dom4j.Element;  
import org.dom4j.io.SAXReader;  
import org.dom4j.io.XMLWriter;  
 
/** 
* @说明 DOM4J解析XML 
* @author cuisuqiang 
* @version 1.0 
* @since 
*/ 
@SuppressWarnings("unchecked")  
public class Dom4jDemo {  
    public static void main(String[] args) {  
        String file = "C:\\p.xml"; // 文件存放位置  
        Dom4jDemo dj = new Dom4jDemo();  
        dj.createXml(file);  
        dj.parserXml(file);  
    }  
    /** 
     * 生成XML 
     * @param filePath 文件路径 
     */ 
    public void createXml(String filePath) {  
        Document document = DocumentHelper.createDocument();  
        Element employees = document.addElement("persons");  
        Element employee = employees.addElement("person");  
        Element name = employee.addElement("name");  
        name.setText("java小强");  
        Element sex = employee.addElement("sex");  
        sex.setText("男");  
        Element age = employee.addElement("age");  
        age.setText("26");  
        try {  
            // PrintWriter带有编码格式的构造方法有助于解决乱码问题  
            PrintWriter pw = new PrintWriter(filePath, "utf-8");  
            XMLWriter xmlWriter = new XMLWriter(pw);  
            xmlWriter.write(document);  
            xmlWriter.close();  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
    }  
    /** 
     * 解析XML 
     * @param filePath 文件路径 
     */ 
    public void parserXml(String filePath) {  
        File inputXml = new File(filePath);  
        SAXReader saxReader = new SAXReader();  
        try {  
            Document document = saxReader.read(inputXml);  
            Element root = document.getRootElement();  
            for (Iterator persons = root.elementIterator(); persons.hasNext();) {  
                Element person = (Element) persons.next();  
                for (Iterator pro = person.elementIterator(); pro.hasNext();) {  
                    Element node = (Element) pro.next();  
                    System.out.print(node.getName() + ":" + node.getText() + "\t");  
                }  
                System.out.println();  
            }  
        } catch (DocumentException e) {  
            e.printStackTrace();  
        }  
    }  
}