客房管理之客房标准管理控制器

最新推荐文章于 2025-02-02 12:18:28 发布

原创最新推荐文章于 2025-02-02 12:18:28 发布 · 294 阅读

CC 4.0 BY-SA版权

本文详细解析了一个酒店房间管理的控制器类，展示了如何通过Servlet处理房间的增删改查操作，包括页面跳转、参数接收及业务逻辑处理。

@WebServlet("/admin/room")
public class RoomController extends HttpServlet {

    RoomService roomService = new RoomServiceImpl();

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String opt = req.getParameter("opt");
        if ("add".equals(opt)) {
            req.getRequestDispatcher("/WEB-INF/default/admin/room/form.jsp").forward(req, resp);
        } else if ("update".equals(opt)) {
            String s = req.getParameter("id");
            if (s != null && !"".equals(s)) {
                Integer id = Integer.parseInt(s);
                Room room = roomService.findById(id);
                req.setAttribute("room", room);
                req.getRequestDispatcher("/WEB-INF/default/admin/room/form.jsp").forward(req, resp);
            } else {
                resp.sendRedirect("./room");
            }
        } else {
            List<Room> allRoom = roomService.getAllRoom();
            req.setAttribute("rooms", allRoom);
            req.getRequestDispatcher("/WEB-INF/default/admin/room/list.jsp").forward(req, resp);
        }

    }


    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String opt = req.getParameter("opt");
        if ("del".equals(opt)) {
            String id = req.getParameter("id");
            if (id != null && !"".equals(id)) {
                roomService.del(id);
            }
            doGet(req, resp);
        } else if ("save".equals(opt)) {
            String roomId1 = req.getParameter("roomId");
            int roomId = roomId1 == "" ? 0 : Integer.parseInt(roomId1);
            String roomNumber = req.getParameter("roomNumber");
            double area = Double.parseDouble(req.getParameter("area"));
            int capacity = Integer.parseInt(req.getParameter("capacity"));
            double price = Double.parseDouble(req.getParameter("price"));
            String hardware = req.getParameter("hardware");
            Room room = new Room(roomId, roomNumber, area, capacity, price, hardware);
            roomService.addRoom(room);
            resp.sendRedirect("./room");
        } else {
            doGet(req, resp);
        }

    }


}