java中用jdom 如何创建xml文档/将数据写入XML中

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JDomOutput.java代码如下

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import java.io.FileNotFoundException;

import java.io.FileOutputStream;
import java.io.IOException;

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

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);


       //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

   }

}

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生成的xml内容如下：

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<?xml version="1.0" encoding="utf-8"?>
<people>
    
    <person id="001" gender="male">
        <name>刘德华</name>
        <address>香港</address>
    </person>
    <person id="002" gender="male">
        <name>林志颖</name>
        <address>台湾</address>
    </person>
</people>

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