Use Jdom to Write XML file

package com.bjsxt.util;

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

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

/**
 * Use Jdom to write a XML file
 * <selects>
 * 		<select>
 * 			<id>1</id>
 * 			<name>北京</name>
 * 		</select>
 * 		<select>
 * 			<id>2</id>
 * 			<name>上海</name>
 * 		</select>
 * <selects>
 */
public class TestJdom {
	public static void main(String[] args)throws IOException, FileNotFoundException {
		new TestJdom().testXMLWrite();
	}
	
	public void testXMLWrite()throws IOException, FileNotFoundException {
		//先New一个根。在Jdom中每一个节点都是Element
		Element rootElt = new Element("selects");
		
		Element selectElt11 = new Element("select");
		Element idElt11 = new Element("id");
		Element valueElt11 = new Element("name");
		idElt11.addContent("1");
		valueElt11.addContent("北京");
		selectElt11.addContent(idElt11);
		selectElt11.addContent(valueElt11);
		
		Element selectElt22 = new Element("select");
		Element idElt22 = new Element("id");
		Element valueElt22 = new Element("name");
		idElt22.addContent("2");
		valueElt22.addContent("上海");
		selectElt22.addContent(idElt22);
		selectElt22.addContent(valueElt22);
		
		rootElt.addContent(selectElt11);
		rootElt.addContent(selectElt22);
		
		//将根rootElt作为参数。相当于得到了整个的XML文件
		Document doc = new Document(rootElt);
		
		//设定输出的XML文件编码，默认生成的XML文件为UTF-8编码
		XMLOutputter out = new XMLOutputter();
		out.setFormat(Format.getCompactFormat().setEncoding("UTF-8"));
		
		//在控制台上打印输出XML
		System.out.println(out.outputString(doc));
		
		//将生成的XML文件写到D:/testXML.xml中
		out.output(doc, new FileOutputStream("D:/testXML.xml"));
	}
}