使用jdom简单操作XML

package examples.ftp;

/**
 * 
 * 引入jar包：
 * 1、commons-io-2.4.jar
 * 2、commons-net-3.3.jar
 * 3、jdom-2.0.2.jar
 * 
 * */

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

import javax.swing.text.html.HTMLDocument.Iterator;

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

public class CopyOfMyXML {

	/**
	 * @param args
	 * @throws IOException
	 * @throws FileNotFoundException
	 * @throws JDOMException
	 */
	public static void main(String[] args) throws FileNotFoundException,
			IOException, JDOMException {

		new CopyOfMyXML().createXMLFile();
		new CopyOfMyXML().add();
		new CopyOfMyXML().traverse();
		new CopyOfMyXML().del(001);
		new CopyOfMyXML().edit(002);

	}
	
	public void edit(int i) throws JDOMException, IOException{
		SAXBuilder builder = new SAXBuilder();  
        String path = "jdom.xml";  
        Document document = builder.build(new File(path));  
        Element root = document.getRootElement();  
        @SuppressWarnings("unchecked")  
        List<Element> list = root.getChildren();  
        java.util.Iterator<Element> it = list.iterator();  
        while (it.hasNext()) {  
            Element e = it.next();  
            if (Integer.parseInt(e.getAttributeValue("id")) == i) {  
                e.getChild("name").setText("佳佳");  
                e.getChild("address").setText("安徽");  
            }  
        }  
 
        XMLOutputter out = new XMLOutputter();  
        out.setFormat(out.getFormat().setEncoding("utf-8").setIndent("  "));  
        out.output(document, new FileOutputStream(path));  
	}

	/**
	 * 操作XML：删除一个节点
	 * 
	 * @throws IOException
	 * @throws JDOMException
	 * */
	public void del(int i) throws JDOMException, IOException {
		SAXBuilder builder = new SAXBuilder();
		Document document = builder.build(new File("jdom.xml"));
		Element root = document.getRootElement();

		List<Element> list = root.getChildren();
		java.util.Iterator<Element> it = list.iterator();
		while (it.hasNext()) {
			Element e = it.next();
			if (Integer.parseInt(e.getAttributeValue("id")) == i) {
				root.removeContent(e);
				break;
			}
		}

		XMLOutputter out = new XMLOutputter();
		out.setFormat(out.getFormat().setEncoding("utf-8").setIndent("  "));
		out.output(document, new FileOutputStream("jdom.xml"));
	}

	/**
	 * 遍历XML
	 * 
	 * @throws IOException
	 * @throws JDOMException
	 * */
	public void traverse() throws JDOMException, IOException {
		SAXBuilder builder = new SAXBuilder();
		Document document = builder.build(new File("jdom.xml"));
		Element root = document.getRootElement();

		List<Element> list = root.getChildren();
		java.util.Iterator<Element> it = list.iterator();
		while (it.hasNext()) {
			Element e = it.next();
			System.out.println("编号：" + e.getAttributeValue("id")
					+ "性别：" // 获取属性
					+ e.getAttributeValue("gender") + "姓名："
					+ e.getChild("name").getText() + "地址：" // 获取值
					+ e.getChild("address").getText());
		}
	}

	/**
	 * 操作本地XML：为本地的XML文档增加一个节点
	 * 
	 * @throws IOException
	 * @throws JDOMException
	 * */
	public void add() throws JDOMException, IOException {

		SAXBuilder builder = new SAXBuilder();
		Document document = builder.build(new File("jdom.xml"));
		Element root = document.getRootElement();

		Element person = new Element("person");
		person.setAttribute("id", "003").setAttribute("gender", "male");
		root.addContent(person);

		Element name = new Element("name");
		name.setText("王力宏");
		person.addContent(name);

		Element address = new Element("address");
		address.setText("中国");
		person.addContent(address);

		XMLOutputter out = new XMLOutputter();

		out.setFormat(out.getFormat().setEncoding("utf-8").setIndent("    "));
		out.output(document, new FileOutputStream(new File("jdom.xml")));
	}

	/**
	 * 在本地创建一个XML文件
	 * */
	public void createXMLFile() throws FileNotFoundException, IOException {
		// 创建文档
		Document document = new Document();

		// 创建根元素
		Element people = new Element("people");
		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);
		Element person1 = new Element("person");
		people.addContent(person1);
		// 设置属性
		person1.setAttribute("id", "001");
		Attribute person1_gender = new Attribute("gender", "male");
		person1.setAttribute(person1_gender);
		Element person1_name = new Element("name");
		// 设置值
		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);
		// 设置属性
		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);

		// 将数据转为XML字符串输出
		// System.out.println(out.outputString(document));

		// 把数据输出到xml文件中
		out.output(document, new FileOutputStream("jdom.xml"));// 或者FileWriter
	}

}