So implementieren Sie die Lagerkartenfunktion des Lagerverwaltungssystems mit Java

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import java.util.ArrayList;
import java.util.List;

public class WarehouseMap extends JFrame {
    private List<Goods> goodsList;  // 货物列表
    private JPanel mapPanel;  // 地图面板

    public WarehouseMap() {
        // 初始化货物列表和地图面板
        goodsList = new ArrayList<>();
        mapPanel = new JPanel();

        // 设置窗口布局和大小
        setLayout(new BorderLayout());
        setSize(800, 600);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 添加地图面板
        add(mapPanel, BorderLayout.CENTER);

        // 添加菜单栏和按钮
        JMenuBar menuBar = new JMenuBar();
        JMenu fileMenu = new JMenu("文件");
        JMenuItem saveItem = new JMenuItem("保存地图");
        JMenuItem addItem = new JMenuItem("添加货物");
        saveItem.addActionListener(new SaveMapListener());
        addItem.addActionListener(new AddGoodsListener());
        fileMenu.add(saveItem);
        fileMenu.add(addItem);
        menuBar.add(fileMenu);
        setJMenuBar(menuBar);
    }

    // 货物类
    private class Goods {
        private String name;  // 货物名称
        private int x;  // 货物位置x
        private int y;  // 货物位置y
        private int width;  // 货物宽度
        private int height;  // 货物高度

        public Goods(String name, int x, int y, int width, int height) {
            this.name = name;
            this.x = x;
            this.y = y;
            this.width = width;
            this.height = height;
        }

        // 货物在地图上的绘制方法
        public void draw(Graphics g) {
            g.drawRect(x, y, width, height);
            g.drawString(name, x, y - 5);
        }
    }

    // 保存地图监听器
    private class SaveMapListener implements ActionListener {
        @Override
        public void actionPerformed(ActionEvent e) {
            try {
                // 创建文件输出流
                FileOutputStream fileOutputStream = new FileOutputStream("warehouse.txt");
                ObjectOutputStream objectOutputStream = new ObjectOutputStream(fileOutputStream);
                // 将货物列表写入文件
                objectOutputStream.writeObject(goodsList);
                objectOutputStream.close();
                fileOutputStream.close();
                System.out.println("地图保存成功！");
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
    }

    // 添加货物监听器
    private class AddGoodsListener implements ActionListener {
        @Override
        public void actionPerformed(ActionEvent e) {
            // 弹出对话框，输入货物信息
            String name = JOptionPane.showInputDialog("请输入货物名称");
            int x = Integer.parseInt(JOptionPane.showInputDialog("请输入货物位置x"));
            int y = Integer.parseInt(JOptionPane.showInputDialog("请输入货物位置y"));
            int width = Integer.parseInt(JOptionPane.showInputDialog("请输入货物宽度"));
            int height = Integer.parseInt(JOptionPane.showInputDialog("请输入货物高度"));
            Goods goods = new Goods(name, x, y, width, height);
            goodsList.add(goods);
            repaint();  // 重新绘制地图
        }
    }

    // 重写paint方法，在地图上绘制货物
    public void paint(Graphics g) {
        super.paint(g);
        for (Goods goods : goodsList) {
            goods.draw(g);
        }
    }

    public static void main(String[] args) {
        WarehouseMap warehouseMap = new WarehouseMap();
        warehouseMap.setVisible(true);
    }
}