存入xml操作

 1         //存入数据库
 2         try {
 3             //解析xml
 4             SAXReader reader = new SAXReader();
 5             String path = this.getServletContext().getRealPath("WEB-INF/classes/users.xml");
 6             Document dom = reader.read(path);
 7             Element root = dom.getRootElement();
 8             //凭空创建userEle保存用户信息
 9             Element userEle = DocumentHelper.createElement("user");
10             userEle.setAttributeValue("username", username);
11             userEle.setAttributeValue("password", password);
12             userEle.setAttributeValue("nickname", nickname);
13             userEle.setAttributeValue("email", email);
14             //挂载到根节点
15             root.add(userEle);
16             //更新xml
17             XMLWriter wrtier = new XMLWriter(new FileOutputStream(path),OutputFormat.createPrettyPrint());
18             wrtier.write(dom);
19             wrtier.close();
20         } catch (Exception e) {
21             e.printStackTrace();
22             throw new RuntimeException(e);
23         }
24     }