C++程序设计课程设计报告——自助点餐系统_用c++语言编程的点菜系统任务书

作者：人工智能uu | 2024-06-28 11:49:00

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用c++语言编程的点菜系统任务书

C++程序设计课程设计报告

一、任务要求

该系统为两种角色的用户提供服务，一种是餐厅管理员，一种是顾客。餐厅管理员根据账号、密码登录系统。顾客无需登录即可使用系统。

顾客通过该餐厅在系统中提供的菜单为自己点餐。系统能够根据顾客的要求正确打出订单，订单内容包括订单编号、菜品名称、每个菜品的价格、份数、折扣等；订单分两种，一种是在店消费，在店消费要求包括餐桌号，是否有包厢费，另一种是外卖，外卖要求包括送餐时间，送餐地点，客户手机号，外卖服务费，成绩≥60；
订单、用户信息保存在数据库中，其中，连接数据库所需信息（数据库服务器地址、用户名、密码、数据库名）存放在文件中，程序通过从文件中读取这些信息获得与数据库的连接。餐厅管理员可以根据订单编号或手机号查找、删除或修改某个订单，查询到的订单按照下单时间先后显示，成绩≥70；
菜单信息保存在数据库中，能够实现对餐厅菜式和价格的管理，包括对菜品和对应价格的增加、修改、删除、查找，折扣的设置，设置后，顾客在点餐时看到的是新设置后的菜单，成绩≥80；
系统可根据数据库中保存的订单记录对销售情况进行统计，根据餐厅管理员的输入日期统计某天的销售情况（包括一共接了多少单，销售额是多少，各个菜品的销售情况，外卖和在店销售的占比）并显示订单详情，成绩≥90；

二、业务流程图

图 1用户点餐流程图

图 2用户查询流程图

图 3 管理员注册流程图

图 4管理员登录流程图

图 5用户增添流程图

图 6管理员删除流程图

图 7管理员修改流程图

图 8 管理员查询流程图

图 9管理员更新流程图

三、系统功能结构图

图 10 系统功能结构图

四、类的设计

图 11 UML图

五、数据库设计

图 12 ER图

图 13 ER图

建表语句：

CREATE TABLE customer (

 name_ varchar(30) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,

 address varchar(200) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL,

 phone varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,

 id int NOT NULL AUTO_INCREMENT,

 PRIMARY KEY (id) USING BTREE,

 UNIQUE INDEX un(name_ ASC, phone ASC) USING BTREE

) ENGINE = InnoDB AUTO_INCREMENT = 33 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;

 

CREATE TABLE dish (

 ID int NOT NULL AUTO_INCREMENT,

 originalprice double NOT NULL,

 discountedprice double NOT NULL,

 dishname varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,

 sale int NULL DEFAULT 0,

 category int NULL DEFAULT NULL,

 PRIMARY KEY (ID) USING BTREE

) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;

 

CREATE TABLE dish_menu (

 d_id int NOT NULL,

 numberofdish int NULL DEFAULT 0,

 o_ID int NOT NULL,

 INDEX d_id(d_id ASC) USING BTREE,

 INDEX o_ID(o_ID ASC) USING BTREE,

 CONSTRAINT dish_menu_ibfk_1 FOREIGN KEY (d_id) REFERENCES dish (ID) ON DELETE RESTRICT ON UPDATE RESTRICT,

 CONSTRAINT dish_menu_ibfk_2 FOREIGN KEY (o_ID) REFERENCES order_ (ID) ON DELETE RESTRICT ON UPDATE RESTRICT

) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;

 

CREATE TABLE manager (

 worknumber varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,

 password varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,

 PRIMARY KEY (worknumber) USING BTREE

) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;

 

CREATE TABLE order_ (

 ID int NOT NULL AUTO_INCREMENT,

 servicefeescale double NOT NULL,

 diningstyle tinyint(1) NOT NULL,

 peoplenumber int NOT NULL,

 desknumber varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,

 deliverytime datetime NOT NULL,

 c_id int NOT NULL,

 PRIMARY KEY (ID) USING BTREE,

 INDEX m_idx(c_id ASC) USING BTREE,

 CONSTRAINT a FOREIGN KEY (c_id) REFERENCES customer (id) ON DELETE RESTRICT ON UPDATE RESTRICT

) ENGINE = InnoDB AUTO_INCREMENT = 22 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;

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六、程序代码与说明

//由于篇幅较长，此处只贴了声明的代码

Customer.h

#ifndef CUSTOMER_H

#define CUSTOMER_H

#include <QString>

 

class Customer

{

  QString name;

  QString address;

  QString phone;

  int ID=0;

public:

  Customer(QString name, QString address, QString phone);

  const QString& getName() const;

  void setName(const QString& newName);

  const QString& getAddress() const;

  void setAddress(const QString& newAddress);

  const QString& getPhone() const;

  void setPhone(const QString& newPhone);

  int getID() const;

  void setID(int newID);

};

 

CustomerManager.h

#endif // CUSTOMER_H

#ifndef CUSTOMERMANAGER_H

#define CUSTOMERMANAGER_H

#include "MysqlManager.h"

#include "customer.h"

#include <QString>

#include "dish.h"

#include<iostream>

#include <map>

using std::map;

 

class CustomerManager

{

  MysqlManager* sqlManager;

public:

  CustomerManager(MysqlManager* sqlManager);

  //对于顾客进行增删改查

  void addCustomer(Customer& c);

  void deleteCustomer(Customer& c);

  void modifyCustomer(Customer& c);

  void reserchDish(QString str);

  void reserchByNameAndPhone(QString name, QString phone,QString &address, int& c_ID);

  Customer* reserchByID(int c_ID);

};

 

#endif // CUSTOMERMANAGER_H

 

#ifndef DISH_H

#define DISH_H

#include<QString>

 

Dish.h

class Dish {

  QString productName;

  int ID;

  double originalPrice;

  double discountedPrice;

  int sale;

  int category;

  const static char* cg[];

  //int leftNum;//剩余量

public:

  Dish(QString productName, double originalPrice, double discountedPrice, int sale,int category);

 

  const QString& getProductName() const;

  void setProductName(const QString& newProductName);

  double getOriginalPrice() const;

  void setOriginalPrice(double newOriginalPrice);

  double getDiscountedPrice() const;

  void setDiscountedPrice(double newDiscountedPrice);

  int getSale() const;

  void setSale(int newSale);

  int getID() const;

  void setID(int newID);

  int getCategory() const;

  void setCategory(int newCategory);

  bool operator==(const Dish& dish) const;

  bool operator<(const Dish& dish) const;

  //int getLeftNum() const;

  //void setLeftNum(int leftNum);

  static const char * getCg(int category);

 

};

Dishmanager.h

#endif // DISH_H

 

#ifndef DISHMANAGER_H

#define DISHMANAGER_H

#include <QString>

#include <iostream>

#include <vector>

#include"dish.h"

#include "MysqlManager.h"

 

using std::vector;

 

class DishManager {

  MysqlManager* sqlManager;

public:

  DishManager(MysqlManager* sqlManager);

  //增删改查

  void addDish(Dish& d);

  void deleteDish(int id);

  void modifyDishByID(Dish& d);

  void reserchDish(QString str);

  vector<Dish> queryByCategory(int cg);

  vector<Dish> queryAll();

};

 

Employee.h

#endif // DISHMANAGER_H

 

#ifndef EMPLOYEE_H

#define EMPLOYEE_H

#include <QString>

 

class Employee {

  QString workNumber;

  QString password;

public:

  Employee(QString workNumber, QString password);

 

  const QString& getPassword() const;

  void setPassword(const QString& newPassword);

  const QString& getWorkNumber() const;

  void setWorkNumber(const QString& newWorkNumber);

};

Employeemanager.h

#endif // EMPLOYEE_H

 

#ifndef EMPLOYEEMANAGER_H

#define EMPLOYEEMANAGER_H

#include<QString>

#include "employee.h"

#include "MysqlManager.h"

 

class EmployeeManager {

  MysqlManager* sqlManager;

public:

  EmployeeManager(MysqlManager* sqlManager);

  //增删改查

  void addEmployee(const Employee& e);

  void deleteEmployee(Employee& e);

  void modifyEmployee(Employee& e);

  void reserchEmployee(QString str);

  //登录后台管理系统

  bool logIn(QString workNumber, QString passWord);

  //注册账号

  bool register_(QString workNumber, QString password, QString passwordAgain);

};

 

#endif // EMPLOYEEMANAGER_H

 

Manager.h

#pragma once

#include "customermanager.h"

#include "dishmanager.h"

#include "employeemanager.h"

#include "menumanager.h"

#include"ordermanager.h"

#include "MysqlManager.h"

 

class Manager

{

  CustomerManager* customerManager;

  DishManager* dishManager;

  EmployeeManager* employeeManager;

  MenuManager* menuManager;

  OrderManager* orderManager;

public:

  Manager(MysqlManager* mm);

  CustomerManager* getCustomerManager() const;

  DishManager* getDishManager() const;

  EmployeeManager* getEmployeeManager() const;

  MenuManager* getMenuManager() const;

  OrderManager* getOrderManager() const;

};

 

Menu.h

#pragma once

#include "customermanager.h"

#include "dishmanager.h"

#include "employeemanager.h"

#include "menumanager.h"

#include"ordermanager.h"

#include "MysqlManager.h"

 

class Manager

{

  CustomerManager* customerManager;

  DishManager* dishManager;

  EmployeeManager* employeeManager;

  MenuManager* menuManager;

  OrderManager* orderManager;

public:

  Manager(MysqlManager* mm);

  CustomerManager* getCustomerManager() const;

  DishManager* getDishManager() const;

  EmployeeManager* getEmployeeManager() const;

  MenuManager* getMenuManager() const;

  OrderManager* getOrderManager() const;

};

 

Menumanager.h

#ifndef MENUMANAGER_H

#define MENUMANAGER_H

 

#include <QString>

#include "menu.h"

#include "MysqlManager.h"

 

class MenuManager

{

  MysqlManager* sqlManager;

public:

  MenuManager(MysqlManager* sqlManager);

  void addMenu(const Menu& m);

  void deleteMenu(Menu& m);

  void modifyMenu(Menu& m);

  Menu& queryById(int o_id);

 

};

 

#endif // MENUMANAGER_H

 

Menuwindow.h

#pragma once

 

#include <qwidget.h>

#include "dishmanager.h"

#include "manager.h"

#include <iostream>

#include <map>

#include <QTableWidgetItem>

 

using std::map;

 

namespace Ui {

  class MenuForm;

}

 

class MenuWindow:public QWidget

{

  Q_OBJECT

private:

  Ui::MenuForm* ui;

  Manager* manager;

  vector<Dish> currentDishes=nullptr;

  map<Dish, int> numOfDish;

  double sumMoney = 0;

  bool isUserChange = true;

  

public:

  MenuWindow(Manager* manager,QWidget* parent = nullptr);

  void updateDishes(int category);

  void setAllbuttonunchecked();

  void setUnedited(int row, int currentrow, QString text);

  ~MenuWindow();

 

private slots:

  void onreCommendButtonClick();

  void onVegetableButtonClick();

  void onStapleButtonClick();

  void onSeafoodButtonClick();

  void onMeatButtonClick();

  void onDiscountedButtonClick();

  void onDessertButtonClick();

  void changeItem(QTableWidgetItem* item);

  void onCheckOutButtonClick();

  void onQueryButtonClick();

};

 

Mysqlmanager.h

#ifndef CONNECTMYSQL_H

#define CONNECTMYSQL_H

#include <mysql.h>

#include <string>

 

using std::string;

 

class MysqlManager

{

  string host;

  string user;

  string psw;

  string schema;

  int port = 0;

public:

  MysqlManager();

  MYSQL* connect();

  void close(MYSQL* mysql);

 

};

 

#endif // CONNECTMYSQL_H

 

Order.h

#ifndef ORDER_H

#define ORDER_H

#include"dish.h"

#include<vector>

using std::vector;

 

class Order

{

  int ID;

  bool diningStyle;//0为堂食，1为外卖

  int peopleNumber;

  QString deskNumber;

  QString deliverTime;

  int c_id;

public:

  Order(bool diningStyle, int peopleNumber, const QString& deskNumber, const QString& deliverTime, int c_id);

 

  //根据就餐方式，判断服务费或是外卖费，再根据桌号判断就餐费

  double getServiceFeeScale() const;

 

  int getC_id() const;

  void setC_id(int newC_id);

  bool getDiningStyle() const;

  void setDiningStyle(bool newDiningStyle);

  int getPeopleNumber() const;

  void setPeopleNumber(int newPeopleNumber);

  const QString& getDeskNumber() const;

  void setDeskNumber(const QString& newDeskNumber);

  int getID() const;

  void setID(int newID);

  const QString getDeliverTime() const;

  void setDeliverTime(const QString deliverTime);

 

};

 

#endif // ORDER_H

 

Orderhallwindow.h

#pragma once

 

#include "qwidget.h"

#include "manager.h"

#include <iostream>

#include <map>

 

using std::map;

 

namespace Ui {

  class OrderHallForm;

}

 

class OrderHallWindow : public QWidget

{

  Q_OBJECT

private:

  Ui::OrderHallForm* ui;

  Manager* manager;

  int orderNumber;

  bool mealFormat;

  QString tableNumber;

  double boxFee;

  map<Dish, int> numOfDish;

  double sumMoney;

  Customer* cus;

public:

  OrderHallWindow(int orderNumber,bool mealFormat,QString tableNumber,double boxFee,map<Dish, int> numOfDish,double sumMoney,Customercus,Manager manager);

 

  void updateDishes();

  ~OrderHallWindow();

};

 

Ordermanager.h

#ifndef ORDERMANAGER_H

#define ORDERMANAGER_H

#include "MysqlManager.h"

#include "order.h"

 

class OrderManager

{

  MysqlManager* sqlManager;

public:

  OrderManager(MysqlManager* sqlManager);

 

  void addOrder(Order& o);

  void deleteOrder(int o_ID);

  void modifyOrder(Order& o);

  QString getTime(Order& o); 

  void rearchByC_ID(int c_ID,int &o_ID, double& serviceFeeScale,bool &diningStyle,QString &deskNumber,QString &time);

  vector<Order> rearchAll(vector<int>* o_ID, vector<int>* c_ID);

  vector<Order> rearchByTime(QString time, vector<int>* o_ID, vector<int>* c_ID);

  vector<int>* rearchByC_ID();

};

 

#endif // ORDERMANAGER_H

 

Ordertakewindow.h

#pragma once

 

#include "qwidget.h"

#include "manager.h"

#include <iostream>

#include <map>

 

OrderTakeWindow.h

using std::map;

 

namespace Ui {

  class OrderTakeForm;

}

 

class OrderTakeWindow : public QWidget

{

  Q_OBJECT

private:

  Ui::OrderTakeForm* ui;

  Manager* manager;

  int orderNumber;

  bool mealFormat;

  double takeFee;

  map<Dish, int> numOfDish;

  double sumMoney;

  Customer* cus;

  QString time;

public:

  OrderTakeWindow(int orderNumber, bool mealFormat, double takeFee, map<Dish, int> numOfDish, double sumMoney, Customer* cus,QString time,Manager*manager);

 

  void updateDishes();

  ~OrderTakeWindow();

};

 

#pragma once

#include "qwidget.h"

#include "manager.h"

 

namespace Ui {

  class QueryWindow;

};

 

class QueryCustomerImformation:public QWidget

{

  Q_OBJECT

;private:

  Ui::QueryWindow* ui;

  Manager* manager;

public:

  QueryCustomerImformation(Manager *manager);

  ~QueryCustomerImformation();

private slots:

  void onQueryButtonClicked();

};

 

Startwindow.h

#ifndef STARTWINDOW_H

#define STARTWINDOW_H

 

#include <QWidget>

#include "manager.h"

 

QT_BEGIN_NAMESPACE

namespace Ui {

  class Form;

}

QT_END_NAMESPACE

 

class StartWindow:public QWidget

{

  Q_OBJECT

private:

  Manager* manager;

  Ui::Form* ui;

public:

  StartWindow(Manager* manager,QWidget* parent = nullptr);

  ~StartWindow();

 

private slots:

  void onManagerButtonClick();

  void onCustomerButtonClick();

};

BackOfficeManagement.h

#endif // STARTWINDOW_H

 

#pragma once

#include "manager.h"

#include <qwidget.h>

#include<QTableWidgetItem>

 

namespace Ui {

  class BackForm;

}

 

class BackOfficeManagement:public QWidget

{

  Q_OBJECT

private:

  int orderNum=0;

  double sumMoney=0;

  int divisionNum=0;

  Ui::BackForm* ui;

  Manager* manager;

  vector<Dish> dishes=nullptr;

  vector<Order> orders;

  vector<Customer> cus;

  vector<int>* o_id;

  vector<int>* c_id;

  bool isUserChange =true;

public:

  BackOfficeManagement(Manager* manager);

  void updateDishes();

  void setAllbuttonunchecked();

  void updateOrder();

  ~BackOfficeManagement();

private slots:

  void onMenuManagerButtonClick();

  void onOrderManagerButtonClick();

  void addItem();

  void deleteItem();

  void changeItem(QTableWidgetItem* item);

};

 

#pragma once

 

ComboItemDelegate.h

#include <QItemDelegate>

#include <QStringList>

#include <QStyledItemDelegate>

#include <QValidator>

#include <QWidget>

 

class ComboItemDelegate : public QStyledItemDelegate {

  Q_OBJECT

    QStringList items;

 

public:

  ComboItemDelegate(QStringList items, QObject* parent = 0);

 

  QWidget* createEditor(QWidget* parent, const QStyleOptionViewItem& option,

    const QModelIndex& index) const;

 

  void setEditorData(QWidget* editor, const QModelIndex& index) const;

  void setModelData(QWidget* editor, QAbstractItemModel* model,

    const QModelIndex& index) const;

 

  void updateEditorGeometry(QWidget* editor,

    const QStyleOptionViewItem& option,

    const QModelIndex& index) const;

};

 

#pragma once

#include <qwidget.h>

#include"manager.h"

#include<QStatusBar>

 

LogInWindow.h

namespace Ui {

  class LoginWindow;

}

 

class LogInWindow:public QWidget

{

  Q_OBJECT

private:

  Ui::LoginWindow* ui;

  Manager* manager; 

  QStatusBar* m_statusBar;

public:

  LogInWindow(Manager* manager);

  ~LogInWindow();

private slots:

  void onRegButtonClick();

  void onLoginButtonClick();

};

 

RegWindow.h

#pragma once

#include <qwidget.h>

#include"manager.h"

 

namespace Ui {

  class RegisterWindow;

}

 

class RegWindow:public QWidget

{

  Q_OBJECT

private:

  Ui::RegisterWindow* ui;

  Manager* manager;

public:

  RegWindow(Manager* manager);

  ~RegWindow();

private slots:

  void onBackButtonClick();

  void onRegButtonClick();

};

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