关于JDOM

1、首先，在资源网站下载JDOM插件。在工程中加载JDOM_XX.jar。

　　　　

package test;

import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;

import oracle.net.aso.p;

import org.jdom2.Attribute;
import org.jdom2.Comment;
import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.output.Format;
import org.jdom2.output.XMLOutputter;

import com.actionform.StudentForm;
import com.dao.imp.StudentDAO;

public class JDomOutput {
    public static void main(String[] args) throws IOException
    {
        //创建文档
        Document document = new Document();
        //创建根元素
        Element people = new Element("people");
        //把根元素加入到document中
        document.addContent(people); 
        
        //创建注释
        Comment rootComment = new Comment("将数据从程序输出到XML中！");
        people.addContent(rootComment);
        
        //创建父元素
        Element person1 = new Element("person");
        //把元素加入到根元素中
        people.addContent(person1);
        //设置person1元素属性 
        person1.setAttribute("id", "001");
        
        Attribute person1_gender = new Attribute("gender", "male");
        person1.setAttribute(person1_gender);
        
        Element person1_name = new Element("name");
        person1_name.setText("刘德华");
        person1.addContent(person1_name);
        
        Element person1_address = new Element("address");
        person1_address.setText("香港");
        person1.addContent(person1_address);
        
        
        Element person2 = new Element("person");
        people.addContent(person2);       
        person2.setAttribute("id", "002").setAttribute("gender","male");//添加属性，可以一次添加多个属性      
        Element person2_name = new Element("name");
        person2_name.setText("林志颖");
        person2.addContent(person2_name);    
        Element person2_address = new Element("address");
        person2_address.setText("台湾");
        person2.addContent(person2_address);
        
        
        StudentDAO studentDAO = new StudentDAO();  //自己编写dao
        List<StudentForm> result = studentDAO.getAllStudent();
        if (result!=null) {
            for (StudentForm student:result) {
                int i=0;
                Element[] person=new Element[result.size()];
                person[i]= new Element("person");
                people.addContent(person[i]); 
                person[i].setAttribute("id", "1.1").setAttribute("gerder", "male");
                Element person_name=new Element("sname");
                person_name.setText(student.getSname());
                person[i].addContent(person_name);
                Element person_birthday = new Element("address");
                person_birthday.setText(student.getBirthday().toString());
                person[i].addContent(person_birthday);
                i++;
            }
        }
        
        
        //设置xml输出格式
        Format format = Format.getPrettyFormat();
        format.setEncoding("utf-8");//设置编码
        format.setIndent("    ");//设置缩进
        
        
        //得到xml输出流
        XMLOutputter out = new XMLOutputter(format);
        //把数据输出到xml中
        out.output(document, new FileOutputStream("jdom.xml"));//或者FileWriter
        
    }
}