航班信息查询与检索(java)

大二上时用C语言写过一个关于航班信息查询与检索的课程设计，当时是自己抄代码，然后再让学长帮改的，前天晚上在“抄”代码时，突然想用java把那个课设题再写一次，于是昨天晚上就开始了，当然还是先在网上找了不少“成品”做参考，半借鉴，半修改，马马虎虎写了一个功能比较少的版本，以后再写更高版本的。

这个小程序的代码分为四个模块：主框架(MainWindow)，关于飞机航班号、起飞（目的）城市与起飞时间(Plane)，对航班信息的添加查询等操作(FlightInfoOperation)，以及对文件的处理(IOOperation)。

主窗口图：

添加窗口图：

查询窗口图：

（其中可以通过航班号、起飞城市任意一个查询或两者查询）

下面给出这个代码的部分代码：

FlightInfoOperation里的

public FlightInfoOperation() { mainFrame = new Frame("航班信息查询与检索"); mainFrame.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); mainFrame.setSize(WIDTH, HEIGHT); mainFrame.setVisible(true); Dimension frameSize = mainFrame.getSize(); Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); mainFrame.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2); buttonPanel = new Panel(); mainFrame.add(buttonPanel, BorderLayout.NORTH); addButton = new Button("Add"); addButton.addActionListener(this); searchButton = new Button("Search"); searchButton.addActionListener(this); exitButton = new Button("Exit"); exitButton.addActionListener(this); aboutButton = new Button("About"); aboutButton.addActionListener(this); planeInfo = new TextArea(); planeInfo.setFont(new Font("serif", Font.PLAIN, 18)); buttonPanel.add(addButton); buttonPanel.add(searchButton); buttonPanel.add(exitButton); buttonPanel.add(aboutButton); mainFrame.add(planeInfo); /** * 添加飞机信息的窗口设置 */ addFrame = new Frame(); addFrame.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { addFrame.setVisible(false); } }); inputLabPanel = new Panel(new GridLayout(4, 2)); inputBtnPanel = new Panel(); String[] inputLbName = { "airNum:", "StartCity:", "Destination:", "FlightTime" }; String[] inputBtnName = { "Save", "Delete", "Quit" }; // Add窗口中各字段名称、按钮设置 for (int i = 0; i < 4; i++) { inputLab[i] = new Label(inputLbName[i]); inputTf[i] = new TextField(15); inputLabPanel.add(inputLab[i]); inputLabPanel.add(inputTf[i]); } for (int i = 0; i < 3; i++) { inputBtn[i] = new Button(inputBtnName[i]); inputBtn[i].addActionListener(this); inputBtnPanel.add(inputBtn[i]); } inputBtn[2].setActionCommand("add");// 用来获取对象的标签或事先为这个对象设置的命令名 addFrame.add(inputLabPanel, BorderLayout.CENTER); addFrame.add(inputBtnPanel, BorderLayout.SOUTH); addFrame.pack(); addFrame.setLocationRelativeTo(mainFrame); /** * set searchFrame which is used to search plane information */ searchFrame = new Frame("Search plane"); searchFrame.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { searchFrame.setVisible(false); } }); schLabPanel = new Panel(new GridLayout(2, 2)); schBtnPanel = new Panel(); String schLabName[] = { "airNum :", "StartCity :" }; String schBtnName[] = { "Ok", "Quit" }; for (int i = 0; i < 2; i++) { schLab[i] = new Label(schLabName[i]); schTf[i] = new TextField(15); schLabPanel.add(schLab[i]); schLabPanel.add(schTf[i]); } for (int i = 0; i < 2; i++) { schBtn[i] = new Button(schBtnName[i]); schBtn[i].addActionListener(this); schBtnPanel.add(schBtn[i]); } schBtn[1].setActionCommand("search"); searchFrame.add(schLabPanel, BorderLayout.CENTER); searchFrame.add(schBtnPanel, BorderLayout.SOUTH); searchFrame.pack(); searchFrame.setLocationRelativeTo(mainFrame); /** * IO operation object */ ioo = new IOOperation(); plane = ioo.getAllPlane(); }

文件操作部分

public class IOOperation { private File file = new File("E:\\wenjianyuan\\info"); public IOOperation() { try { if (!file.exists()) { file.createNewFile(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } /** * write to file */ public void write(Plane[] wPlane) { try { FileOutputStream fos = new FileOutputStream(file); ObjectOutputStream objOut = new ObjectOutputStream(fos); objOut.writeObject(wPlane); objOut.close(); fos.close(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } /** * read all informations from the file */ public Plane[] getAllPlane() { Plane[] plane = new Plane[100]; try { if (file.length() > 0) { FileInputStream fis = new FileInputStream(file); ObjectInputStream ois=new ObjectInputStream(fis); plane= (Plane[]) ois.readObject(); ois.close(); fis.close(); } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return plane; } }

感兴趣的朋友可以到：http://download.csdn.net/detail/yanghai0321/4185470下载完整代码。