简单的读写xml

	public synchronized static List<BlogXMLBean> ReadBlogList(){
		List<BlogXMLBean> list = new ArrayList<BlogXMLBean>();
		try {
			String filepath = "";
			if ("".equals(SystemVariable.APP_PATH)) {
				filepath = SystemVariable.APP_PATH
						+ "/WebRoot/WEB-INF/ClickReply/blog.xml";
			} else {
				filepath = SystemVariable.APP_PATH
						+ "\\WEB-INF\\ClickReply\\blog.xml";
			}			
			File f = new File(filepath);
			SAXReader reader = new SAXReader();
			Document doc = reader.read(f);
			Element root = doc.getRootElement();
			Element listElement = root.element("blogXMLBeanList");
			Element foo;
			for (Iterator i = listElement.elementIterator("blogXMLBean"); i.hasNext();){
				foo = (Element) i.next();
				BlogXMLBean bean = new BlogXMLBean();
				
				bean.setInitURL(foo.elementText("initURL"));
				bean.setIsFrame(Boolean.valueOf(foo.elementText("isFrame")));
				bean.setIsJavaScript(Boolean.valueOf(foo.elementText("isJavaScript")));
				bean.setClickRegex(foo.elementText("clickRegex"));
				bean.setClickReplyRegex(foo.elementText("clickReplyRegex"));
				bean.setIsCombination(Boolean.valueOf(foo.elementText("isCombination")));
				bean.setReplyRegex(foo.elementText("replyRegex"));
				bean.setSiteName(foo.elementText("siteName"));
				
				list.add(bean);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return list;
	}

	public synchronized static void WriteNewsIndexConfig(List<NewsXMLBean> newsList){
		try{
			DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
			DocumentBuilder db = dbf.newDocumentBuilder();
			Document doc = db.newDocument();

			Element root = doc.createElement("NewsXMLBeanRoot");
			for(int i=0;i<newsList.size();i++){
				NewsXMLBean newsXMLBean = newsList.get(i);
				Element bean = doc.createElement("NewsXMLBean");
				
				Element siteName = doc.createElement("siteName");
				siteName.setTextContent(newsXMLBean.getSiteName()+"");
				bean.appendChild(siteName);
				
				Element initURL = doc.createElement("initURL");
				initURL.setTextContent(newsXMLBean.getInitURL()+"");
				bean.appendChild(initURL);
				
				Element fileName = doc.createElement("fileName");
				fileName.setTextContent(newsXMLBean.getFileName()+"");
				bean.appendChild(fileName);
				root.appendChild(bean);
				
			}
			doc.appendChild(root);
			
			String filename = "";
			if ("".equals(SystemVariable.APP_PATH)) {
				filename = SystemVariable.APP_PATH
						+ "/WebRoot/WEB-INF/ClickReply/newsIndexConfig.xml";
			} else {
				filename = SystemVariable.APP_PATH
						+ "\\WEB-INF\\ClickReply\\newsIndexConfig.xml";
			}
			
			// 下面的方法是写xml到.xml的文档
			TransformerFactory tf = TransformerFactory.newInstance();
			Transformer transformer = tf.newTransformer();// 此实例可以用于处理来自不同源的
			// XML，并将转换输出写入各种接收器。
			DOMSource source = new DOMSource(doc);// 创建带有 DOM 节点的新输入源
			transformer.setOutputProperty(OutputKeys.ENCODING, "utf-8");// 设置转换中实际的输出属性
			transformer.setOutputProperty(OutputKeys.INDENT, "yes");// 设置转换中实际的输出属性
			OutputStreamWriter pw = new OutputStreamWriter(new FileOutputStream(filename), "utf-8");
			StreamResult result = new StreamResult(pw);// 从字节流构造 StreamResult
			// 充当转换结果的持有者，可以为
			// XML、纯文本、HTML 或某些其他格式的标记
			transformer.transform(source, result);// 将 XML Source 转换为 Result
		}catch (Exception e) {
			// TODO: handle exception
		}
	}