韩顺平满汉楼项目，完整源代码和数据库

package com.serein.view; import com.serein.domain.*; import com.serein.service.BillService; import com.serein.service.DiningTableService; import com.serein.service.EmployeeService; import com.serein.service.MenuService; import com.serein.utils.Utility; import java.util.List; public class MHLView { private boolean loop = true;//loop控制循环是否结束 private String key = ""; //以下创建对象，以便调用service的方法完成业务逻辑处理，体现了面向对象编程思想 private EmployeeService employeeService = new EmployeeService(); private DiningTableService diningTableService = new DiningTableService(); private MenuService menuService = new MenuService(); private BillService billService = new BillService(); //主方法，启动页面 public static void main(String[] args) { new MHLView().mainMenu(); } //结账服务 public void payBill(){ System.out.println("==========结账服务==========="); System.out.print("请选择要结账的餐桌编号（-1退出）："); int diningTableId = Utility.readInt(); if (diningTableId == -1){ System.out.println("==========取消结账==========="); return; } //根据餐桌号判断要结账的餐桌号是否存在 DiningTable diningTable = diningTableService.getDiningTableById(diningTableId); if (diningTable == null){ System.out.println("==========结账的餐桌号不存在==========="); return; } //判断该餐桌上有没有没结账的菜品 if (!billService.hasPayBillByDiningTableId(diningTableId)){ System.out.println("==========该餐位没有未结账的账单==========="); return; } System.out.print("支付方式（支付宝/微信/现金）（回车退出）："); String payMode = Utility.readString(20, ""); //防止误操作，再给用户一次取消的机会 if ("".equals(payMode)){ System.out.println("==========取消结账==========="); return; } char key = Utility.readConfirmSelection(); if (key == 'Y'){ if (billService.payBill(diningTableId,payMode)){ System.out.println("==========完成结账==========="); }else { System.out.println("==========结账失败==========="); } }else { System.out.println("==========取消结账==========="); } } //查看菜单 public void listBill(){ // List<Bill> bills = billService.list(); // System.out.println("\n编号\t\t菜品号\t\t菜品量\t\t金额\t\t桌号\t\t日期\t\t\t\t\t\t\t状态"); // for (Bill bill : bills) { // System.out.println(bill); // } // System.out.println("=======显示完毕======="); List<MultiTableBean> multiTableBeans = billService.list2(); System.out.println("\n编号\t\t菜品号\t\t菜品量\t\t金额\t\t桌号\t\t日期\t\t\t\t\t\t\t状态\t\t菜品名"); for (MultiTableBean bill : multiTableBeans) { System.out.println(bill); } System.out.println("=======显示完毕======="); } //点餐 public void orderMenu(){ System.out.println("==========点餐服务==========="); System.out.print("请输入点餐的桌号（-1退出）："); int orderDiningTableId = Utility.readInt(); if (orderDiningTableId == -1){ System.out.println("==========取消点餐==========="); return; } System.out.print("请输入点餐的菜品号（-1退出）："); int orderMenuId = Utility.readInt(); if (orderMenuId == -1){ System.out.println("==========取消点餐==========="); return; } System.out.print("请输入点餐的菜品量（-1退出）："); int orderNums = Utility.readInt(); if (orderNums == -1){ System.out.println("==========取消点餐==========="); return; } //判断餐桌号是否存在 DiningTable diningTable = diningTableService.getDiningTableById(orderDiningTableId); if (diningTable == null){ System.out.println("==========餐桌号不存在==========="); return; } //判断有没有这个菜 Menu menu = menuService.getMenuById(orderMenuId); if (menu == null){ System.out.println("==========该菜品编号不存在==========="); return; } //调用点餐的方法，并完成该方法后，会返回一个boolean值。 if (billService.orderMenu(orderMenuId,orderNums,orderDiningTableId)){ System.out.println("==========点餐成功==========="); }else { System.out.println("==========点餐失败==========="); } } //显示菜品 public void listMenu(){ List<Menu> list = menuService.list(); System.out.println("\n菜品编号\t\t菜品名\t\t菜品类别\t\t价格"); for (Menu menu : list) { System.out.println(menu); } System.out.println("======显示菜品完毕======"); } //订座 public void orderDiningTable(){ System.out.println("===========预定餐桌============="); System.out.println("请输入要预定的餐桌编号（-1退出）："); int orderId = Utility.readInt(); if (orderId == -1){ System.out.println("===========取消预定============="); return; } char key = Utility.readConfirmSelection(); if (key == 'Y'){ DiningTable diningTable = diningTableService.getDiningTableById(orderId); if (diningTable == null){ System.out.println("===========预定餐桌不存在============="); return; } if (!("空".equals(diningTable.getState()))){ System.out.println("===========预定餐桌已预订或正在就餐中============="); return; } System.out.print("预订人的名字："); String orderName = Utility.readString(50); System.out.print("预订人的电话号码："); String orderTel = Utility.readString(50); //订座会调用专门的方法，该方法执行完后会返回一个boolean值 if (diningTableService.orderDiningTable(orderId,orderName,orderTel)){ System.out.println("===========预定餐桌成功============="); }else { System.out.println("===========预定餐桌失败============="); } }else { System.out.println("===========取消预定============="); } } //显示所有餐桌的状态，据此知道哪些是空桌 public void listDiningTable(){ List<DiningTable> list = diningTableService.list(); System.out.println("\n餐桌编号\t\t餐桌状态"); for (DiningTable diningTable : list) { System.out.println(diningTable); } System.out.println("======显示完毕======="); } public void mainMenu(){ while (loop){ System.out.println("================满汉楼=================="); System.out.println("\t\t 1 登录满汉楼"); System.out.println("\t\t 2 退出满汉楼"); System.out.print("请输入你的选择："); key = Utility.readString(1); switch (key){ case "1": System.out.print("请输入员工工号："); String empId = Utility