小试一下dom4j,挺方便的

首先是写入XML文件：

 

package org.jie.dom4j;

import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;



public class dom4jTest ...{

    public void createXml()
    ...{
        Document doc=DocumentHelper.createDocument();
        
        Element rootEle=doc.addElement("root");
        rootEle.addComment("这是一个dom4j生成的xml文件");
        
        Element root1=rootEle.addElement("root_1");
        root1.addAttribute("id", "1");
        
        Element root11=root1.addElement("root_11");
        root11.setText("zhangsan");
        
        Element root12=root1.addElement("root_12");
        root12.setText("man");
        
        try
        ...{
            Writer out=new FileWriter("c:/test.xml");
            OutputFormat format=OutputFormat.createCompactFormat();
            format.setEncoding("UTF-8");
            XMLWriter writer=new XMLWriter(out,format);
            writer.write(doc);
            writer.close();
            System.out.println("生成xml文件成功！");
        }
        catch(IOException e)
        ...{
            e.printStackTrace();
            System.out.println("生成失败了！");
        }


    }
    
    /** *//**
     * @param args
     */
    public static void main(String[] args) ...{
        // TODO Auto-generated method stub

        dom4jTest dt=new dom4jTest();
        dt.createXml();
    }

}

 接着是读取XML文件的一个小例：

 

<?xml version="1.0" encoding="utf-8" ?>
<Result>
    <VALUE>
        <NO DATE="2005">A1</NO>
        <ADDR>GZ</ADDR>
    </VALUE>
    <VALUE>
        <NO DATE="2004">A2</NO>
        <ADDR>XG</ADDR>
   </VALUE>
</Result>

 

 

package org.jie.dom4j;

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

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

public class domRead ...{

    public long ReadXml()
    ...{
        long procTime=System.currentTimeMillis();
        try
        ...{
            File f=new File("c:/justRead.xml");
            SAXReader reader=new SAXReader();
            Document doc=reader.read(f);
            Element root=doc.getRootElement();
            Element foo;
            List list=root.elements();
            Iterator iter=list.iterator();
            
            while(iter.hasNext())
            ...{
                foo=(Element)iter.next();
                System.out.println(foo.elementText("NO"));
                System.out.println(foo.elementText("ADDR"));
            }
        }
        catch(Exception e)
        ...{
            e.printStackTrace();
        }
        procTime=System.currentTimeMillis()-procTime;
        
        return procTime;
    }
    /** *//**
     * @param args
     */
    public static void main(String[] args) ...{
        // TODO Auto-generated method stub

        domRead dr=new domRead();
        System.out.println(dr.ReadXml());
    }

}

个人觉得很不错，至少很方便！