基于MVC模式的点餐管理系统

package com.hotel.app.controller; import java.io.IOException; import java.sql.Timestamp; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Locale; import java.util.Map; import java.util.Set; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.junit.Test; import com.hotel.app.service.AppCuisineService; import com.hotel.app.service.AppDetailService; import com.hotel.app.service.AppFoodService; import com.hotel.app.service.AppOrderService; import com.hotel.pojo.Cuisine; import com.hotel.pojo.Detail; import com.hotel.pojo.Food; import com.hotel.pojo.Order; import com.hotel.util.HttpClientUtil; /** * @Title AppOrderServlet * @Description * @Company Ait Interent * @author DaiZhenWei * @date 2016-10-26 下午9:51:45 */ public class AppOrderServlet extends HttpServlet { private AppOrderService aos = new AppOrderService(); private AppDetailService ads = new AppDetailService(); private AppFoodService afs = new AppFoodService(); private AppCuisineService acs = new AppCuisineService(); @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); String method = request.getParameter("method"); switch (method) { case "clientCar": clientCar(request, response); break; case "changeCount": changeCount(request, response); break; case "decideOrder": try { decideOrder(request, response); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } break; case "clientOrderList": clientOrderList(request, response); break; case "removeOrder": removeOrder(request, response); break; } } /** * 取消菜品 * @param request * @param response */ private void removeOrder(HttpServletRequest request, HttpServletResponse response) { int id = Integer.parseInt(request.getParameter("id")); Map<Food,String> foods = getClientCar(request, response); foods.remove(afs.getFoodById(id)); } /** * 查看清单列表 * * @param request * @param response * @throws IOException * @throws ServletException */ private void clientOrderList(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { double sumprice = 0; Map<Food, String> foodmap = getClientCar(request, response); if (foodmap != null) { Set<Food> foods = foodmap.keySet(); for (Food fo : foods) { int num = Integer.parseInt(foodmap.get(fo)); sumprice += num * fo.getPrice(); } } List<Cuisine> foodTypeList = acs.getFoodTypeList(); request.setAttribute("foodTypeList", foodTypeList); request.setAttribute("sumprice", sumprice); request.getRequestDispatcher("app/clientOrderList.jsp").forward( request, response); } /** * 确认结账 * * @param request * @param response * @throws IOException * @throws ServletException * @throws ParseException */ @Test private void decideOrder(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, ParseException { int tableId = Integer.parseInt((String) request.getSession() .getAttribute("tableId")); // 获取已选菜品 Map<Food, String> foodmap = getClientCar(request, response); /*String count = request.getParameter("count"); int id = Integer.parseInt(request.getParameter("foodid")); Food food = afs.getFoodById(id); boolean flag = false; //判断之前是否选定次菜品，如果选中过，就将数量增加即可 //如果没有选过，则将菜品新增加进map if (foodmap == null) { foodmap = new HashMap<Food, String>(); foodmap.put(food, count); } else { Set<Food> foods = foodmap.keySet(); for (Food fo : foods) { if (fo.getFoodName().equals(food.getFoodName())) { int num = Integer.parseInt(count) + Integer.parseInt(foodmap.get(fo)); foodmap.remove(fo); foodmap.put(fo, num + ""); flag = true; break; } else { flag = false; } } if (!flag) { foodmap.put(food, count); } }*/ // 计算出总消费 double sumprice = 0; if (foodmap != null) { Set<Food> foods = foodmap.keySet(); for (Food fo : foods) { int num = Integer.parseInt(foodmap.get(fo)); sumprice += num * fo.getPrice(); } } // 首先查看session中是否有本次订单的id值， // 如果有证明本次操作是更新操作，只需向数据库中更新totalprice值即可 // 如果没有则是插入操作，要想数据库中存入详细数据 String orderid = (String) request.getSession().getAttribute("orderId"); DateFormat dateFormat; Timestamp dateTime = null; String orid = null; if (orderid == null) { // 向数据库添加数据 Order order = new Order(); order.setTableId(tableId); dateFormat = new SimpleDateFormat("yyyy-MM-dd kk:mm:ss", Locale.ENGLISH);// 设定格式 // dateFormat = new SimpleDateFormat("yyyy-MM-dd kk:mm:ss", // Locale.ENGLISH); dateFormat.setLenient(false); java.util.Date timeDate = dateFormat.parse(new Date() .toLocaleString());// util类型 dateTime = new java.sql.Timestamp(timeDate.getTime());// Timestamp类型,timeDate.getTime()返回一个long型 order.setOrderDate(dateTime); order.setTotalPrice(sumprice); order.setOrderStatus(1); aos.addOrder(order); orid = aos.getOrderIdByDate(dateTime, tableId); request.getSession().setAttribute("orderId", orid); //将订单id存入session中 }else{ //执行更新操作 orid = orderid; aos.updateOrderPrice(Integer.parseInt(orid), sumprice); } //修改订单详细表时要先把该订单下的所有详细删除，再将新的详细表插入 int orderId = Integer.parseInt(orid); ads.deleteDetail(orderId); Detail detail = new Detail(); Set<Food> foods = foodmap.keySet(); for(Food fo : foods){ detail.setOrderId(orderId); detail.setFoodId(fo.getId()); detail.setFoodCount(Integer.parseInt(foodmap.get(fo))); ads.addDetail(detail); } //移除所有session request.getSession().invalidate(); HttpClientUtil.doGet("http://localhost:8080/Hotel/TableServlet?method=updateStatus&id="+tableId+"&status=1"); request.getRequestDispatcher("AppTableServlet?method=searchByStatus").forward(request, response); // 更新餐车 /*request.getSession().setAttribute("timestamp", dateTime); request.getSession().setAttribute("foodmap", foodmap); clientOrderList(request, response);*/ } /** * 修改餐车菜品数量 * * @param request * @param response * @throws IOException * @throws ServletException */ private void changeCount(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id = Integer.parseInt(request.getParameter("id")); String count = request.getParameter("count"); if(count==null||count.equals("")){ count = "1"; } // 获取已选菜品 Map<Food, String> foodmap = getClientCar(request, response); Food food = afs.getFoodById(id); boolean flag = false; //判断之前是否选定次菜品，如果选中过，就将数量增加即可 //如果没有选过，则将菜品新增加进map if (foodmap == null) { foodmap = new HashMap<Food, String>(); foodmap.put(food, count); } else { Set<Food> foods = foodmap.keySet(); for (Food fo : foods) { if (fo.getFoodName().equals(food.getFoodName())) { int num = Integ