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外卖订餐系统

分类: 文章 • 2022-12-07 20:48:52

本系统采用了抽象工厂的用例模式
饮料抽象类->四种饮料类
食物抽象类->三种食物类
抽象工厂类->七种工厂类
客户类
gui类

客户类发送消息给工厂类，由工厂类创造具体食物对象，再由gui实现界面

客户类：

package kfc;
import java.util.Scanner;

import drink.Drink;
import factory.*;
import food.Food;
import food.MashedPotato;

public class Client {
	private double finalPrice;
	private Factory factory;
	public Client() {
		finalPrice=0;
	}
	public Drink chooseCola() {//选择可乐
		factory=new ColaFactory();
		return factory.createDrink();
	}
	public Drink chooseFenda() {//选择芬达
		factory=new FendaFactory();
		return factory.createDrink();
	}
	public Drink chooseOrange() {//选择可乐
		factory=new OrangeFactory();
		return factory.createDrink();
	}
	public Drink chooseSprite() {//选择雪碧
		factory=new SpriteFactory();
		return factory.createDrink();
	}
	public Food chooseFriedChicken() {//选择炸鸡腿
		factory=new FriedChickedFactory();
		return factory.createFood();
	}
	public Food choosePopChicked() {//选择炸鸡翅
		factory=new PopChickenFactory();
		return factory.createFood();
	}
	public Food chooseMashedPotato() {//选择炸薯条
		factory=new MashedPotatoFactory();
		return factory.createFood();
	}
	public double calculatePrice(double price) {
		this.finalPrice+=price;
		return this.finalPrice;
	}
	public void reducePrice(double price) {
		this.finalPrice-=price;
	}

}

客户端类

package kfc;

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JComboBox;
import javax.swing.JButton;
import javax.swing.BorderFactory;
import javax.swing.DefaultComboBoxModel;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JOptionPane;

import java.awt.Color;
import javax.swing.JTextField;
import javax.swing.JSeparator;
import javax.swing.SwingConstants;
import javax.swing.JTable;
import javax.swing.border.LineBorder;
import javax.swing.table.DefaultTableModel;

import drink.Drink;
import food.Food;

import javax.swing.JScrollPane;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

public class App extends JFrame {
	Client me;
	private JPanel contentPane;
	private JTextField number;
	private JTable table;
	private String sign;
	private int row;
	private DefaultTableModel model;

	/**
	 * Launch the application.
	 * @throws IOException 
	 */
	public static void main(String[] args) throws IOException {

		
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					App frame = new App();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public App() {
		me=new Client();
		sign="炸鸡腿";
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 984, 577);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		contentPane.setLayout(null);
		
		
		
		JLabel imagess = new JLabel("");
		imagess.setBounds(74, 54, 159, 147);
		imagess.setIcon(new ImageIcon("images\\炸鸡腿.jpg"));
		contentPane.add(imagess);
		JLabel price = new JLabel("");
		price.setBounds(126, 337, 72, 18);
		price.setText(me.chooseFriedChicken().getPrice()+"元");
		contentPane.add(price);
		
		JComboBox comboBox = new JComboBox();
		comboBox.addItemListener(new ItemListener() {
			public void itemStateChanged(ItemEvent e) {
				if(e.getStateChange()==e.SELECTED) {
					Icon icon=new ImageIcon("images\\"+e.getItem()+".jpg");
					imagess.setIcon(icon);
					if(e.getItem()=="炸鸡腿") {
						price.setText(me.chooseFriedChicken().getPrice()+"元");
						sign="炸鸡腿";
					}
					else if(e.getItem()=="炸鸡翅") {
						price.setText(me.choosePopChicked().getPrice()+"元");
						sign="炸鸡翅";
					}
					else if(e.getItem()=="炸薯条") {
						price.setText(me.chooseMashedPotato().getPrice()+"元");
						sign="炸薯条";
					}
					else if(e.getItem()=="可乐") {
						price.setText(me.chooseCola().getPrice()+"元");
						sign="可乐";
					}
					else if(e.getItem()=="雪碧") {
						price.setText(me.chooseSprite().getPrice()+"元");
						sign="雪碧";
					}
					else if(e.getItem()=="芬达") {
						price.setText(me.chooseFenda().getPrice()+"元");
						sign="芬达";
					}
					else if(e.getItem()=="橙汁") {
						price.setText(me.chooseOrange().getPrice()+"元");
						sign="橙汁";
					}
					
				}
			}
		});

		comboBox.setModel(new DefaultComboBoxModel(new String[] {"炸鸡腿", "炸鸡翅", "炸薯条", "可乐", "雪碧", "芬达", "橙汁"}));
		comboBox.setBounds(293, 54, 138, 39);
		contentPane.add(comboBox);
		
		JLabel label = new JLabel("价格");
		label.setBounds(74, 327, 53, 39);
		contentPane.add(label);
		
		JLabel label_1 = new JLabel("份数");
		label_1.setBounds(282, 337, 72, 18);
		contentPane.add(label_1);
		
		JLabel lblNewLabel_2 = new JLabel("");
		lblNewLabel_2.setBounds(14, 35, 441, 467);
		lblNewLabel_2.setBorder(BorderFactory.createTitledBorder("点餐"));
		contentPane.add(lblNewLabel_2);
		
		JScrollPane scrollPane = new JScrollPane();
		scrollPane.setBounds(552, 54, 380, 364);
		contentPane.add(scrollPane);
		
		table = new JTable();
		table.setRowHeight(50);

		scrollPane.setViewportView(table);
		Object[][] datas={
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
				{null, null, null, null},
			};
		String[] names={
				"名称", "单价", "数量", "总价"
			};
		model = new DefaultTableModel(datas, names);
	//	table.setModel(model);
		table.setModel(new DefaultTableModel(datas,names) {
			boolean[] columnEditables = new boolean[] {
				false, false, false, false
			};
			public boolean isCellEditable(int row, int column) {
				return columnEditables[column];
			}
		});
		model=(DefaultTableModel) table.getModel();
		
		
		
		table.setBorder(new LineBorder(new Color(0, 0, 0), 1, true));
		JLabel lblNewLabel_3 = new JLabel("");
		lblNewLabel_3.setBounds(523, 35, 441, 467);
		lblNewLabel_3.setBorder(BorderFactory.createTitledBorder("购物车"));
		contentPane.add(lblNewLabel_3);
		

		row=0;
		JButton button = new JButton("加入购物车");
		button.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				Drink drink;
				Food food;
			try {
				if(sign.equals("炸鸡腿")) {					
					food=me.chooseFriedChicken();		
					food.setNum(Integer.parseInt(number.getText()));
					table.setValueAt(food.getName(), row, 0);
					table.setValueAt(food.getPrice(), row, 1);
					table.setValueAt(food.getNum(), row, 2);
					table.setValueAt(food.getTotalPrice(), row, 3);
					table.setValueAt("总计", row+1, 0);
					table.setValueAt(me.calculatePrice(food.getTotalPrice()), row+1, 3);
					row++;
				}
				else if(sign.equals("炸鸡翅")) {
					food=me.choosePopChicked();
					food.setNum(Integer.parseInt(number.getText()));	
					table.setValueAt(food.getName(), row, 0);
					table.setValueAt(food.getPrice(), row, 1);
					table.setValueAt(food.getNum(), row, 2);
					table.setValueAt(food.getTotalPrice(), row, 3);
					table.setValueAt("总计", row+1, 0);
					table.setValueAt(me.calculatePrice(food.getTotalPrice()), row+1, 3);![在这里插入图片描述](https://img-blog.****img.cn/20181028175400454.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BvbGl0ZWJveQ==,size_27,color_FFFFFF,t_70)
					row++;
				}
				else if(sign.equals("炸薯条")) {
					food=me.chooseMashedPotato();
					food.setNum(Integer.parseInt(number.getText()));	
					table.setValueAt(food.getName(), row, 0);
					table.setValueAt(food.getPrice(), row, 1);
					table.setValueAt(food.getNum(), row, 2);
					table.setValueAt(food.getTotalPrice(), row, 3);
					table.setValueAt("总计", row+1, 0);
					table.setValueAt(me.calculatePrice(food.getTotalPrice()), row+1, 3);
					row++;
				}
				else if(sign.equals("可乐")) {
					drink=me.chooseCola();
					drink.setNum(Integer.parseInt(number.getText()));
					table.setValueAt(drink.getName(), row, 0);
					table.setValueAt(drink.getPrice(), row, 1);
					table.setValueAt(drink.getNum(), row, 2);
					table.setValueAt(drink.getTotalPrice(), row, 3);
					table.setValueAt("总计", row+1, 0);
					table.setValueAt(me.calculatePrice(drink.getTotalPrice()), row+1, 3);
					row++;
				}
				else if(sign.equals("雪碧")) {
					drink=me.chooseSprite();
					drink.setNum(Integer.parseInt(number.getText()));
					table.setValueAt(drink.getName(), row, 0);
					table.setValueAt(drink.getPrice(), row, 1);
					table.setValueAt(drink.getNum(), row, 2);
					table.setValueAt(drink.getTotalPrice(), row, 3);
					table.setValueAt("总计", row+1, 0);
					table.setValueAt(me.calculatePrice(drink.getTotalPrice()), row+1, 3);
					row++;
				}
				else if(sign.equals("芬达")) {
					drink=me.chooseFenda();
					drink.setNum(Integer.parseInt(number.getText()));
					table.setValueAt(drink.getName(), row, 0);
					table.setValueAt(drink.getPrice(), row, 1);
					table.setValueAt(drink.getNum(), row, 2);
					table.setValueAt(drink.getTotalPrice(), row, 3);
					table.setValueAt("总计", row+1, 0);
					table.setValueAt(me.calculatePrice(drink.getTotalPrice()), row+1, 3);
					row++;
					
				}
				else if(sign.equals("橙汁")) {
					drink=me.chooseOrange();
					drink.setNum(Integer.parseInt(number.getText()));
					table.setValueAt(drink.getName(), row, 0);
					table.setValueAt(drink.getPrice(), row, 1);
					table.setValueAt(drink.getNum(), row, 2);
					table.setValueAt(drink.getTotalPrice(), row, 3);
					table.setValueAt("总计", row+1, 0);
					table.setValueAt(me.calculatePrice(drink.getTotalPrice()), row+1, 3);
					row++;
				}
			}catch(NumberFormatException e) {
				System.out.println("输入的数字出现异常,重新输入");
				
			}
			}
			
		});
		
		number = new JTextField();
		number.setText("1");
		number.setBounds(358, 332, 72, 29);
		contentPane.add(number);
		number.setColumns(10);
		button.setBounds(317, 431, 113, 27);
		contentPane.add(button);
		
		
		
		JButton remove = new JButton("移除");
		remove.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				int rows = table.getSelectedRow();
				if(rows == -1){
					JOptionPane.showMessageDialog(App.this,"请选择要删除的套餐!");
				}else{
					model.removeRow(rows);
					System.out.println(rows);
					row--;
					me.reducePrice(Double.parseDouble(String.valueOf(table.getValueAt(rows-1, 3))));
					table.setValueAt("总计", row, 0);
					table.setValueAt(me.calculatePrice(0), row, 3);
				}
	
			}
			
			
		});
		remove.setBounds(564, 431, 113, 27);
		contentPane.add(remove);
		
		JButton buy = new JButton("购买");
		buy.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
			new Ensure(App.this);

			}
		});
		buy.setBounds(819, 431, 113, 27);
		contentPane.add(buy);
		this.setResizable(false);
	}
	public void print() {
		Date date = new Date();
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		System.out.println(sdf.format(date));
		System.out.println("名称\t单价\t数量\t总价");
		for(int i=0;i<row+1;i++) {
			for(int j=0;j<4;j++) {
				if(table.getValueAt(i, j)==null) {
					System.out.print("\t");
					continue;
				}					
				System.out.print(table.getValueAt(i, j)+"\t");
			}
			System.out.println();
		}
	}
}

另外通过本程序对于gui的combobox和jtable组件有了进一步的了解
combobox的创建并添加监视器

		JComboBox comboBox = new JComboBox();
		comboBox.addItemListener(new ItemListener() {
			public void itemStateChanged(ItemEvent e) {
				if(e.getStateChange()==e.SELECTED) {
					}
			}
		});

		comboBox.setModel(new DefaultComboBoxModel(new String[] {" ", " ", " ", " ", " ", " ", " "}));
		comboBox.setBounds(293, 54, 138, 39);
		contentPane.add(comboBox);

JTable的创建

		table = new JTable();
		table.setRowHeight(50);

		scrollPane.setViewportView(table);
		Object[][] datas={
			};
		String[] names={
			};
		table.setModel(new DefaultTableModel(datas,names) {
			boolean[] columnEditables = new boolean[] {
				false, false, false, false
			};
			public boolean isCellEditable(int row, int column) {
				return columnEditables[column];
			}
		});
		model=(DefaultTableModel) table.getModel();
//得到表格控制器
		table.setBorder(new LineBorder(new Color(0, 0, 0), 1, true));

外卖订餐系统

ubmV0L3BvbGl0ZWJveQ==,size_27,color_FFFFFF,t_70)外卖订餐系统外卖订餐系统

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