Java 编写航班查询系统窗体程序完整源码

青旅半醒 2024-03-26 07:23 3阅读 0赞

## 开发环境 ##

开发语言为Java，开发环境Eclipse或者IDEA都可以。数据库采用：MySQL。运行主程序，或者执行打开JAR文件即可以运行本程序。

## 系统框架 ##

利用JDK自带的SWING框架开发，需要导入MySMyQL的JDBCJAR包。MySQL数据库，纯窗体模式，直接运行Main文件即可以。同时带有详细得设计文档

## 系统主要功能 ##

航班查询系统系统用Java语言编写，是一个简单的窗体程序，采用swing框架编写，系统涉及到文件、UI、数据库操作、事件等操作。通过运行Main.java,或者直接运行解压文件假下的JAR文件

### 操作说明： ###

整个航班查询系统采用的图形化界面方式进行设计，最上面是菜单栏，下面是快捷工具栏

1 航班信息维护。包括航班的新增，航班的修改、航班的删除。航班信息包括：航班号、是否满仓、起飞时间、落地时间、票价、折扣

2 航班信息查询：包括航班号来查询航班信息，根据起始城市来查询

3 通过快捷图标来执行相关操作

4 更换系统背景图片

## 实现的主要效果 ##

![14d9e079a536be997b0422facaa2440a.jpeg][]

![a7c40d1f22577e48273033cce4101a66.jpeg][]

![4fee291d783838b57ecb1c8ee86ccc2a.jpeg][]

![889f9ef5ec2df649f9db813c97d90143.jpeg][]

![f753ad1551c8523b8269b7762a9b55ed.jpeg][]

![8dc793d2574b598cf1ee189a9601f13c.jpeg][]

## 关键代码 ##

import java.awt.*;
    import java.awt.event.*;
    import java.util.prefs.*;
    import javax.swing.*;
    
    /**
     * 这个类定义了程序的主界面. 包括菜单, 工具栏, 主功能操作按钮, 显示界面等.
     * @author wenwen
     */
    public class MainFrame extends JFrame
    {
        public MainFrame()
        {
            /*
             * 读入用户对程序界面进行配置的参数. 
             */
            Preferences root = Preferences.userRoot();
            userPrefs = root.node("/net/sfte/jk88811");
            
            setTitle("航班管理信息系统 " + FlightMIS.getVersion());
            
            //设置窗口大小与上次系统关闭时一样.
            Toolkit kit = Toolkit.getDefaultToolkit();
            Dimension screenSize = kit.getScreenSize();
            int defaultWidth = screenSize.width;
            int defaultHeight = screenSize.height;
            int topLeftX = userPrefs.getInt("topLeftX", 0);
            int topLeftY = userPrefs.getInt("topLeftY", 0);
            int width = userPrefs.getInt("width", defaultWidth);
            int height = userPrefs.getInt("height", defaultHeight);
            //如果窗口大小与显示屏大小基本相等, 则最大化窗口.
            if (Math.abs(width - defaultWidth) <= 30 &&
                Math.abs(height - defaultHeight) <= 30)
            {
                setBounds(defaultWidth / 10, defaultHeight / 10, 
                    (int) (defaultWidth / 1.2), (int) (defaultHeight / 1.2));
                setExtendedState(MAXIMIZED_BOTH);
            }
            else
            {
                setBounds(topLeftX, topLeftY, width, height);
            }
            
            //设置窗口小图标
            Image img = kit.getImage(getClass().getResource("images/icon.png"));
            setIconImage(img);
            
            //中部主面板, 显示图片.
            String imageName = userPrefs.get("backgroundImage", "images/plane.jpg");
            mainPanel = new MainPanel(imageName);
            add(mainPanel, BorderLayout.CENTER);
            
            /*
             * 创建事件监听动作Action
             */
            actionExit = new ExitAction();
            actionAbout = new AboutAction(this);
            actionInput = new InputAction(mainPanel);
            actionLoadIn = new LoadInAction(this);
            actionModify = new ModifyAction(mainPanel);
            actionDelete = new DeleteAction(mainPanel);
            actionQueryWithId = new QueryWithIdAction(mainPanel);
            actionQueryWithCity = new QueryWithCityAction(mainPanel);
            actionChangeBackground = new ChangeBackgroundAction(this, mainPanel);
            
            /*
             * 主菜单设置
             */
            JMenuBar menuBar = new JMenuBar();
            setJMenuBar(menuBar);
            
            //文件菜单
            JMenu fileMenu = new JMenu("文件(F)");
            fileMenu.setMnemonic('F');
            menuBar.add(fileMenu);
            
            //unfinished
            JMenuItem systemItem = new JMenuItem("系统设置");
            systemItem.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_S, InputEvent.CTRL_MASK));
            fileMenu.add(systemItem);
            
            JMenuItem changeImageItem = new JMenuItem(actionChangeBackground);
            fileMenu.add(changeImageItem);
            
            fileMenu.addSeparator();
            
            //退出系统.
            JMenuItem exitItem = new JMenuItem(actionExit);
            exitItem.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_X, InputEvent.CTRL_MASK));
            fileMenu.add(exitItem);
            
            //操作菜单
            JMenu operationMenu = new JMenu("操作(O)");
            operationMenu.setMnemonic('O');
            menuBar.add(operationMenu);
            
            JMenu addFlightMenu = new JMenu("新增航班信息");
            operationMenu.add(addFlightMenu);
            
            JMenuItem addItem = new JMenuItem(actionInput);
            addItem.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_I, InputEvent.CTRL_MASK));
            addFlightMenu.add(addItem);
            
            JMenuItem loadInItem = new JMenuItem(actionLoadIn);
            loadInItem.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_L, InputEvent.CTRL_MASK));
            addFlightMenu.add(loadInItem);
            
            operationMenu.addSeparator();
            
            JMenu queryMenu = new JMenu("查询航班信息");
            operationMenu.add(queryMenu);
            
            JMenuItem queryWithIdItem = new JMenuItem(actionQueryWithId);
            queryWithIdItem.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_Q, InputEvent.CTRL_MASK));
            queryMenu.add(queryWithIdItem);
            
            JMenuItem queryWithCityItem = new JMenuItem(actionQueryWithCity);
            queryWithCityItem.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_C, InputEvent.CTRL_MASK));
            queryMenu.add(queryWithCityItem);
            
            operationMenu.addSeparator();
            
            JMenuItem modifyItem = new JMenuItem(actionModify);
            modifyItem.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_M, InputEvent.CTRL_MASK));
            operationMenu.add(modifyItem);
            
            JMenuItem deleteItem = new JMenuItem(actionDelete);
            deleteItem.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_D, InputEvent.CTRL_MASK));
            operationMenu.add(deleteItem);
            
            //查看菜单
            JMenu viewMenu = new JMenu("查看(V)");
            viewMenu.setMnemonic('V');
            menuBar.add(viewMenu);
            
            JMenu lookAndFeelMenu = new JMenu("外观");
            viewMenu.add(lookAndFeelMenu);
            //外观单选菜单项所属的组
            group = new ButtonGroup();
            //设置程序外观(Look And Feel)
            String defaultLookAndFeel = userPrefs.get("lookAndFeel", 
                UIManager.getCrossPlatformLookAndFeelClassName());
            try
            {
                UIManager.setLookAndFeel(defaultLookAndFeel);
                SwingUtilities.updateComponentTreeUI(MainFrame.this);
            }
            catch (Exception e)
            {
                //do nothing
            }
            UIManager.LookAndFeelInfo[] infos = UIManager.getInstalledLookAndFeels();
            for (UIManager.LookAndFeelInfo info : infos)
            {
                addLookAndFeelMenuItem(lookAndFeelMenu, info.getName(),
                    info.getClassName(), defaultLookAndFeel);
            }
            
            viewMenu.addSeparator();
            
            //状态栏
            statusBar = new StatusBar();
            add(statusBar, BorderLayout.SOUTH);
            boolean displayStatusBar = userPrefs.getBoolean("displayStatusBar", true);
            statusBar.setVisible(displayStatusBar);
            //控制是否显示状态栏的菜单项
            final JCheckBoxMenuItem statusBarItem = new JCheckBoxMenuItem("状态栏");
            statusBarItem.setSelected(displayStatusBar);
            statusBarItem.addActionListener(new
                ActionListener()
                {
                    public void actionPerformed(ActionEvent e)
                    {
                        boolean sign = statusBarItem.isSelected();
                        statusBar.setVisible(sign);
                        validate();
                        userPrefs.putBoolean("displayStatusBar", sign);
                    }
                });
            viewMenu.add(statusBarItem);
            
            //帮助菜单
            JMenu helpMenu = new JMenu("帮助(H)");
            helpMenu.setMnemonic('H');
            menuBar.add(helpMenu);
            
            //unfinished
            JMenuItem helpItem = new JMenuItem("系统帮助");
            helpItem.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_H, InputEvent.CTRL_MASK));
            //helpItem.addActionListener();
            helpMenu.add(helpItem);
            
            //unfinished.
            JMenuItem newVersionItem = new JMenuItem("检查新版本");
            //newVersionItem.addActionListener();
            helpMenu.add(newVersionItem);
            
            helpMenu.addSeparator();
            
            JMenuItem aboutItem = new JMenuItem(actionAbout);
            aboutItem.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_A, InputEvent.CTRL_MASK));
            helpMenu.add(aboutItem);
            
            //创建工具栏.
            toolBar = new JToolBar("工具栏");
            toolBar.setFloatable(false);
            toolBar.setRollover(true);
            add(toolBar, BorderLayout.NORTH);
            //控制是否显示工具栏.
            boolean displayToolBar = userPrefs.getBoolean("displayToolBar", true);
            toolBar.setVisible(displayToolBar);
            final JCheckBoxMenuItem toolBarItem = new JCheckBoxMenuItem("工具栏");
            viewMenu.add(toolBarItem);
            toolBarItem.setSelected(displayToolBar);
            toolBarItem.addActionListener(new
                ActionListener()
                {
                    public void actionPerformed(ActionEvent e)
                    {
                        boolean sign = toolBarItem.isSelected();
                        toolBar.setVisible(sign);
                        validate();
                        userPrefs.putBoolean("displayToolBar", sign);
                    }
                });
            
            toolBar.add(createButton(actionLoadIn, "images/loadIn.png", "导入航班信息"));
            toolBar.add(createButton(actionInput, "images/input.png", "录入航班信息"));
            toolBar.addSeparator();
            toolBar.add(createButton(actionQueryWithId, "images/queryWithId.png", "按航班号查询"));
            toolBar.add(createButton(actionQueryWithCity, "images/queryWithCity.png", "按起飞抵达城市查询"));
            toolBar.addSeparator();
            toolBar.add(createButton(actionModify, "images/modify.png", "修改航班信息"));
            toolBar.add(createButton(actionDelete, "images/delete.png", "删除航班信息"));
            toolBar.addSeparator();
            toolBar.add(createButton(actionAbout, "images/about.png", "关于"));
            toolBar.add(createButton(actionExit, "images/exit.png", "退出系统"));
            
            //注册窗口关闭监听器
            addWindowListener(new
                WindowAdapter()
                {
                    public void windowClosing(WindowEvent e)
                    {
                        exitSystem();
                    }
                });
            
            //设置弹出菜单
            createPopupMenu();
        }
        
        /**
         * 为每一种外观创建一个菜单项, 并安装相应的事件监听器
         * @author wenwen
         */
        public void addLookAndFeelMenuItem(JMenu menu, String name, 
            final String plafName, String defaultLookAndFeel)
        {
            final JRadioButtonMenuItem menuItem = new JRadioButtonMenuItem(name);
            if (plafName.equals(defaultLookAndFeel))
                menuItem.setSelected(true);
            menuItem.addActionListener(new
                ActionListener()
                {
                    public void actionPerformed(ActionEvent e)
                    {
                        if (menuItem.isSelected())
                        {
                            //将用户选择的外观保存到用户参数中, 以便下次启动时使用默认外观.
                            userPrefs.put("lookAndFeel", plafName);
                            //动态设置与菜单项对应的外观
                            try
                            {
                                UIManager.setLookAndFeel(plafName);
                                SwingUtilities.updateComponentTreeUI(MainFrame.this);
                                MainFrame.this.remove(popupMenu);
                                createPopupMenu();
                            }
                            catch (Exception ex)
                            {
                                // do nothing.
                            }
                        }
                    }
                });
            group.add(menuItem);
            menu.add(menuItem);
        }
        /**
         * 系统关闭时调用该方法, 保存系统参数以及尚未保存的航班信息资料.
         * @author wenwen
         */
        public void exitSystem()
        {
            int result = JOptionPane.showConfirmDialog(MainFrame.this,
                "您确定要退出本航班信息管理系统吗?", "程序退出确认",
                JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
            if (result != JOptionPane.YES_OPTION)
                return ;
            //保存窗口位置参数, 以便下次启动时使用.
            userPrefs.putInt("topLeftX", getX());
            userPrefs.putInt("topLeftY", getY());
            userPrefs.putInt("width", getWidth());
            userPrefs.putInt("height", getHeight());
            
            //保存背景图片完整路径, 以便下次启动时载入.
            String imageName = mainPanel.getBackgroundImageName();
            userPrefs.put("backgroundImage", imageName);
            System.exit(0);
        }
        /**
         * 为工具栏创建按键
         * @author wenwen
         */
        public JButton createButton(Action action, String imageName, String toolTip)
        {
            JButton b = new JButton(new ImageIcon(
                getClass().getResource(imageName)));
            b.setToolTipText(toolTip);
            b.addActionListener(action);
            return b;
        }
        /**
         * 创建弹出式菜单
         * @author wenwen
         */
        private void createPopupMenu()
        {
            popupMenu = new JPopupMenu();
            popupMenu.add(new JMenuItem(actionInput));
            popupMenu.add(new JMenuItem(actionLoadIn));
            popupMenu.addSeparator();
            popupMenu.add(new JMenuItem(actionQueryWithId));
            popupMenu.add(new JMenuItem(actionQueryWithCity));
            popupMenu.addSeparator();
            popupMenu.add(new JMenuItem(actionModify));
            popupMenu.add(new JMenuItem(actionDelete));
            popupMenu.addSeparator();
            popupMenu.add(new JMenuItem(actionChangeBackground));
            
            //将右键菜单添加到mainPanel上
            mainPanel.setComponentPopupMenu(popupMenu);
            //下面这条语句是必须的, 这是Java本身的一个bug. 请查看Java bug 4966109
            mainPanel.addMouseListener(new MouseAdapter() {    });
        }
        /**
         * 系统退出事件处理.
         * @author wenwen
         */
        private class ExitAction extends AbstractAction
        {
            public ExitAction()
            {
                putValue(Action.NAME, "退出");
                putValue(Action.SHORT_DESCRIPTION, "退出系统");
            }
            public void actionPerformed(ActionEvent e)
            {
                exitSystem();
            }
        }
        
        //外观菜单所属的单选按钮组.
        private ButtonGroup group;
        //程序界面配置的用户参数.
        private final Preferences userPrefs;
        private StatusBar statusBar;
        private JToolBar toolBar;
        private MainPanel mainPanel;
        private JPopupMenu popupMenu;
        
        //事件监听动作Action.
        private ExitAction actionExit;
        private AboutAction actionAbout;
        private InputAction actionInput;
        private LoadInAction actionLoadIn;
        private ModifyAction actionModify;
        private DeleteAction actionDelete;
        private QueryWithIdAction actionQueryWithId;
        private QueryWithCityAction actionQueryWithCity;
        private ChangeBackgroundAction actionChangeBackground;
    }

[14d9e079a536be997b0422facaa2440a.jpeg]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/26/9d5d0387c91149bc80a5d4bf5c22dd7c.png
[a7c40d1f22577e48273033cce4101a66.jpeg]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/26/403cbf370dfc4abe893627d115135fcf.png
[4fee291d783838b57ecb1c8ee86ccc2a.jpeg]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/26/6955cd782857474c8cc5f2241f6ec249.png
[889f9ef5ec2df649f9db813c97d90143.jpeg]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/26/779cb64292e4432ca06f60a35269f09f.png
[f753ad1551c8523b8269b7762a9b55ed.jpeg]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/26/6979c4d1f9b04e5187473e5a24df5100.png
[8dc793d2574b598cf1ee189a9601f13c.jpeg]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/26/45beae73bb9e4e01a6927a611ffa7d5f.png