DOM4J

public static void main(String[] args) {
		
		SAXReader reader = new SAXReader();
		try {
			Document document = reader.read(new File("books.xml"));
			// 通过document对象获取根节点bookstore
			Element bookStore = document.getRootElement();
			Iterator it = bookStore.elementIterator();
			// 遍历迭代器，获取根节点中的信息（书籍）
			while (it.hasNext()) {
				System.out.println("=====开始遍历某一本书=====");
				Element book = (Element) it.next();
				// 获取book的属性名以及 属性值
				List<Attribute> bookAttrs = book.attributes();
				for (Attribute attr : bookAttrs) {
					System.out.println("属性名：" + attr.getName() + "--属性值："
							+ attr.getValue());
				}
				Iterator itt = book.elementIterator();
				while (itt.hasNext()) {
					Element bookChild = (Element) itt.next();
					System.out.println("节点名：" + bookChild.getName() + "--节点值：" + bookChild.getStringValue());
				}
				System.out.println("=====结束遍历某一本书=====");
			}
		} catch (DocumentException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}}

public class main {
	private void createXML(){
	
		//1.创建document对象，代表整个xml文档
		Document document = DocumentHelper.createDocument();
		//2.创建根节点rss
		Element rss = document.addElement("rss");
		//3.向rss节点中添加version属性
		rss.addAttribute("version", "2.0");
		
		//4.生成子节点及节点内容
		Element channel = rss.addElement("channel");
		Element title = channel.addElement("title");
		title.setText("<![CDATA[上海移动互联网产业促进中心正式揭牌 ]]>");
		
		//5.设置生成xml的格式
		OutputFormat format = OutputFormat.createPrettyPrint();
		format.setEncoding("GBK");
		
		//6.生成xml文件
		File file = new File("rssnews.xml");
		XMLWriter writer;
		
		try {
			writer = new XMLWriter(new FileOutputStream(file), format);
			//设置是否转义，默认值是true，代表转义
			writer.setEscapeText(false);
			writer.write(document);
			writer.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

/**
 * @param args
 */
	public static void main(String[] args) {
		new DOM4JTest().createXML();
	}
}