Java無法關閉JFrame

Question

單擊按鈕後，我無法關閉框架。棘手的部分是我不需要退出整個應用程序，只需關閉GUI（而不是系統退出）。 你能幫助我嗎？ 提前謝謝！

Main.java

public class Main { 
public static void main(String[] args) { 
    System.setProperty("webdriver.gecko.driver", "C:/geckodriver.exe"); 
    WebDriver driver = new FirefoxDriver(); 
    driver.get("https://my.emerchantpay.com/"); 
    eMerchantPay emp = PageFactory.initElements(driver, eMerchantPay.class); 
    SwingUtilities.invokeLater(new Runnable() { 
     public void run() { 
      JFrame frame = new MainFrame("Please enter your credentials"); 
      frame.setSize(500, 400); 
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
      frame.setVisible(true); 
     } 
    }); 

MainFrame.java

public class MainFrame extends JFrame { 

private DetailsPanel detailsPanel; 

public MainFrame(String title) { 
    super(title); 

    // Set layout manager 
    setLayout(new BorderLayout()); 

    // Create Swing components 
    final JTextArea textArea = new JTextArea(); 

    detailsPanel = new DetailsPanel(); 

    detailsPanel.addDetailsListener(new DetailListener() { 


     public void detailEventOccured(DetailEvent event) { 
      String text = event.getText(); 

      textArea.append(text); 
     } 
    }); 

    // Add Swing components to content pane 
    Container c = getContentPane(); 

    //c.add(textArea, BorderLayout.CENTER); 
    c.add(detailsPanel, BorderLayout.CENTER); 
} 

DetailsPanel.java

public class DetailsPanel extends JPanel{ 

private static final long serialVersionUID = 1234567891; 

private EventListenerList listenerList = new EventListenerList(); 

public DetailsPanel() { 
    Dimension size = getPreferredSize(); 
    size.width = 250; 
    setPreferredSize(size); 

    setBorder(BorderFactory.createTitledBorder("Personal Details")); 

    JLabel nameLabel = new JLabel("Name: "); 
    JLabel passwordLabel = new JLabel("Password: "); 

    final JTextField nameField = new JTextField(10); 
    final JPasswordField passwordField = new JPasswordField(10); 

    JButton addBtn = new JButton("Submit"); 

    addBtn.addActionListener(new ActionListener() { 

     @Override 
     public void actionPerformed(java.awt.event.ActionEvent e) { 
      String name = nameField.getText(); 
      String password = passwordField.getText(); 

      String text = name + ": " + password + "\n"; 

      System.out.println (text); 
     } 
    }); 

    setLayout(new GridBagLayout()); 

    GridBagConstraints gc = new GridBagConstraints(); 

    /// First column /// 
    gc.anchor = GridBagConstraints.LINE_END; 
    gc.weightx = 0.5; 
    gc.weighty = 0.5; 

    gc.gridx = 0; 
    gc.gridy = 0; 
    add(nameLabel, gc); 

    gc.gridx = 0; 
    gc.gridy = 1; 
    add(passwordLabel, gc); 

    /// Second column /// 
    gc.anchor = GridBagConstraints.LINE_START; 

    gc.gridx = 1; 
    gc.gridy = 0; 
    add(nameField, gc); 

    gc.gridx = 1; 
    gc.gridy = 1; 
    add(passwordField, gc); 

    /// Final row /// 
    gc.weighty = 10; 

    gc.anchor = GridBagConstraints.FIRST_LINE_START; 

    gc.gridx = 1; 
    gc.gridy = 2; 
    add(addBtn, gc); 
} 

public void fireDetailEvent(DetailEvent event) { 
    Object[] listeners = listenerList.getListenerList(); 

    for (int i=0; i < listeners.length; i += 2) { 
     if (listeners[i] == DetailListener.class) { 
      ((DetailListener)listeners[i+1]).detailEventOccured(event); 
     } 
    } 
} 

public void addDetailsListener(DetailListener listener) { 
    listenerList.add(DetailListener.class, listener); 
} 

public void removeDetailListener(DetailListener listener) { 
    listenerList.remove(DetailListener.class, listener); 

} 

我需要關閉框架一旦我點擊這一塊的登錄按鈕代碼：

addBtn.addActionListener(new ActionListener() { 

     @Override 
     public void actionPerformed(java.awt.event.ActionEvent e) { 
      String name = nameField.getText(); 
      String password = passwordField.getText(); 

      String text = name + ": " + password + "\n"; 

      System.out.println (text); 
     } 
    }); 

Answer 1

在actionPerformed，添加這些行獲取並關閉父框架：

JFrame frame = (JFrame) SwingUtilities.getWindowAncestor(addBtn); 
frame.dispose();// or frame.setVisible(false), depending on your needs 

請注意，您必須聲明，以便在匿名偵聽器來使用它您的按鈕final：

final JButton addBtn = new JButton("Submit");