package org.lxh;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.UnsupportedEncodingException;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;
public class CreateXml {
  public static void main(String[] args) {
    File f=new File("d:"+File.separator+"my.xml");
    Document docu=DocumentHelper.createDocument(); //创建xml文档
    Element linkman=docu.addElement("linkman");  //创建根节点
    Element name=linkman.addElement("name"); //创建子元素
    Element age=linkman.addElement("age");
    name.setText("陈瑞银");  //设置name节点的内容
    age.setText("22");    //设置age节点的内容
    OutputFormat format=OutputFormat.createPrettyPrint(); //指定输出格式
    format.setEncoding("UTF-8");  //指定输出编码
    try {
      XMLWriter w=new XMLWriter(new FileOutputStream(f),format); //输出文件
      w.write(docu); //输出内容
      w.close();
    } catch (Exception e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
  }
}

package org.lxh;
import java.io.File;
import java.util.Iterator;
import org.dom4j.*;
import org.dom4j.io.SAXReader;
public class ReadXml {
  public static void main(String[] args) {
    File f=new File("d:"+File.separator+"my.xml");
    SAXReader read=new SAXReader();  //建立SAX解析读取
    Document document=null;
    try {
      document=read.read(f);  //读取文档
      Element root=document.getRootElement();  //取得根元素
      //下面给注释的部分用于解析复杂的xml(3层或以上)
      /*Iterator it=root.elementIterator();  //取得全部子节点
      while(it.hasNext())
      {
        /*Element e=(Element)it.next();
        System.out.println(e.elementText("name")); //取得文本元素
        System.out.println(e.elementText("age"));
      }*/
      System.out.println(root.elementText("age"));
    } catch (Exception e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
  }
}