JAVA项目之注册

public class RegisterServlet extends HttpServlet {     private UsersService usersService = new UsersService();      public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {         // 解决request的中文乱码         request.setCharacterEncoding("UTF-8");         // 获取用户输入的验证码         String checkcode = request.getParameter("checkCode");         // 获取Session中的验证码         String code = (String) request.getSession().getAttribute("checkcode_session");         // 进行比较判断         if (!checkcode.equals(code)) {                     //System.out.println("验证码错误!");             request.setAttribute("info", "验证码错误!");             request.getRequestDispatcher("/register.jsp").forward(request, response);             return;         }          // 获取所有请求参数的MAP集合         Map<String, String[]> map = request.getParameterMap();         // 创建users对象         Users users = new Users();         // 用BeanUtils中的方法将map集合中的参数封装到Users对象中         // 原理：根据map中的key 跟user对象中的属性名一一映射         try {             BeanUtils.populate(users, map);         } catch (IllegalAccessException e) {             // TODO Auto-generated catch block             e.printStackTrace();         } catch (InvocationTargetException e) {             // TODO Auto-generated catch block             e.printStackTrace();         }         // 封装uid(随机产生36位不重复的id)         users.setUid(UUID.randomUUID().toString());         // 调Service方法         System.out.println(users);         usersService.register(users);         // 成功后，重定向到登录页面         response.sendRedirect(request.getContextPath() + "/login.jsp");     }      public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {         doGet(request, response);     } }

private UsersDao usersDao=new UsersDao();     //注册     public void register(Users users){         try {             usersDao.register(users);         } catch (SQLException e) {             // TODO Auto-generated catch block             e.printStackTrace();         }     }

// 注册     public void register(Users users) throws SQLException {         /*          * Connection conn = JDBCUtils.getConn(); String sql =          * "insert into users(uid,username,password,email,name,sex,birthday) values(?,?,?,?,?,?,?)"          * ; PreparedStatement pst=conn.prepareStatement(sql); pst.setString(1,          * users.getUid()); pst.setString(2, users.getUsername());          * pst.setString(3, users.getPassword()); pst.setString(4,          * users.getEmail()); pst.setString(5, users.getName());          * pst.setString(6, users.getSex()); pst.setString(7,          * users.getBirthday()); //执行sql pst.executeUpdate(); //释放资源          * JDBCUtils.close(conn, pst);          */         QueryRunner qr = new QueryRunner(MyDBUtils.getDataSource());         String sql = "insert into users(uid,username,password,email,name,sex,birthday) values(?,?,?,?,?,?,?)";         qr.update(sql, new Object[] { users.getUid(), users.getUsername(), users.getPassword(), users.getEmail(),                 users.getName(), users.getSex(), users.getBirthday() });      }