Dom4J方式创建/解析xml

1.新建文件名为：Dom4jdemo.java，代码：

package com.test;
 
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
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;
 
import com.inter.XmlDocument;
 
public class Dom4jDemo implements XmlDocument
{
    //创建xml
    public void createXml(String fileName)
    {
        Document document = DocumentHelper.createDocument();  
        Element employees=document.addElement("employees");  
        Element employee=employees.addElement("employee");  
        Element name= employee.addElement("name");  
        name.setText("ddvip");  
        Element sex=employee.addElement("sex");  
        sex.setText("m");  
        Element age=employee.addElement("age");  
        age.setText("29");  
        try {  
            Writer fileWriter=new FileWriter(fileName);  
            XMLWriter xmlWriter=new XMLWriter(fileWriter);  
            xmlWriter.write(document);  
            xmlWriter.close();  
            } catch (IOException e) { 
                System.out.println(e.getMessage());  
                }  
    }
   
    //解析xml
    public void parserXml(String fileName)
    {
        File inputXml=new File(fileName);  
        SAXReader saxReader = new SAXReader();  
        try {  
            Document document = saxReader.read(inputXml);  
            Element employees=document.getRootElement();  
            for(Iterator i = employees.elementIterator(); i.hasNext();){  
                Element employee = (Element) i.next();  
                for(Iterator j = employee.elementIterator(); j.hasNext();){
                    Element node=(Element) j.next();  
                    System.out.println(node.getName()+":"+node.getText()); 
                    }  
                }  
            } catch (DocumentException e) {  
                System.out.println(e.getMessage());  
                }  
            System.out.println("-------dom4j 解析完毕--------");
            }  
    }

2.编写测试类，TestDom4j.java，代码如下：

public class TestDom
{
    public static void main(String[] args)
    {
Dom4jdemo    dom4j=  new  Dom4jdemo();
 
//创建的xml见图一
dom4j.createXml("D://employee.xml");
//解析的xml见图二
dom4j.parseXml("E://employee.xml");
 
 
          }
}