Java 为什么在Linux中，JButton、JLabel鼠标单击会丢失或被忽略？这不是程序应该做的_Java_Linux_Swing_Ubuntu_Jbutton

Java 为什么在Linux中，JButton、JLabel鼠标单击会丢失或被忽略？这不是程序应该做的

java linux swing ubuntu

Java 为什么在Linux中，JButton、JLabel鼠标单击会丢失或被忽略？这不是程序应该做的,java,linux,swing,ubuntu,jbutton,Java,Linux,Swing,Ubuntu,Jbutton,我有一个SSCCE，其中Jbutton被按下，它什么也不做，而且如果我在JLabel中单击，它也会失败，它不可靠，许多单击都会丢失。但是其他发行版我检查了相同的代码，并且它工作正常。仅在戴尔Inspiron触摸屏PC中，它不工作我已经点击JButton 100次了，但是它显示了2次我已单击JLabel 100次，但它显示了0次我也在JFrame中点击了100次，但它显示0次被按下运行：复制和粘贴： package UnitTest; import java.awt.FlowLay

我有一个SSCCE，其中Jbutton被按下，它什么也不做，而且如果我在JLabel中单击，它也会失败，它不可靠，许多单击都会丢失。但是其他发行版我检查了相同的代码，并且它工作正常。仅在戴尔Inspiron触摸屏PC中，它不工作

我已经点击JButton 100次了，但是它显示了2次
我已单击JLabel 100次，但它显示了0次
我也在JFrame中点击了100次，但它显示0次被按下

运行：

复制和粘贴：

package UnitTest;

import java.awt.FlowLayout;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;

public class MouseMethods implements MouseListener {

  private JLabel label = new JLabel("This is a JLabel");
  private JButton button = new JButton("This is a JButton");

  public MouseMethods() {
    JFrame frame = new JFrame("MouseMethods");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setLayout(new FlowLayout());

    label.addMouseListener(this);
    button.addMouseListener(this);

    frame.add(label);
    frame.add(button);
    frame.setVisible(true);
    frame.pack();
  }

  public void mouseClicked(MouseEvent e) {
    if (e.getSource().equals(button)) {
      System.out.println("The JButton was clicked...");
    } else if (e.getSource().equals(label)) {
      System.out.println("The JLabel was clicked...");
    } else {
      System.out.println("Something else was clicked...");
    }
  }

  public void mouseEntered(MouseEvent e) {
  }

  public void mouseExited(MouseEvent e) {
  }

  public void mousePressed(MouseEvent e) {
  }

  public void mouseReleased(MouseEvent e) {
  }

  public static void main(String args[]) {
    new MouseMethods();
  }
}

跟进：

$ uname -a
Linux sun-Inspiron-One-2320 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

$ apt-cache search linux-image
alsa-base - ALSA driver configuration files
linux-image - Generic Linux kernel image.
linux-image-3.2.0-23-generic - Linux kernel image for version 3.2.0 on 64 bit x86 SMP
linux-image-3.2.0-23-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-extra-3.2.0-23-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-extra-virtual - Linux kernel extra modules for virtual machines
linux-image-generic - Generic Linux kernel image
linux-image-server - Linux kernel image on Server Equipment.
linux-image-virtual - Linux kernel image for virtual machines
linux-virtual - Complete Linux kernel for virtual machines
linux-image-3.2.0-23-generic-pae - Linux kernel image for version 3.2.0 on 64 bit x86 SMP
linux-image-generic-pae - Generic Linux kernel image
linux-image-3.2.0-23-lowlatency - Linux kernel image for version 3.2.0 on x86/x86_64
linux-image-lowlatency - lowlatency Linux kernel image
linux-image-3.2.0-23-lowlatency-pae - Linux kernel image for version 3.2.0 on x86
linux-image-lowlatency-pae - lowlatency Linux kernel image
linux-image-3.2.0-24-generic - Linux kernel image for version 3.2.0 on 64 bit x86 SMP
linux-image-3.2.0-24-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-3.2.0-25-generic - Linux kernel image for version 3.2.0 on 64 bit x86 SMP
linux-image-3.2.0-25-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-3.2.0-26-generic - Linux kernel image for version 3.2.0 on 64 bit x86 SMP
linux-image-3.2.0-26-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-3.2.0-27-generic - Linux kernel image for version 3.2.0 on 64 bit x86 SMP
linux-image-3.2.0-27-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-3.2.0-29-generic - Linux kernel image for version 3.2.0 on 64 bit x86 SMP
linux-image-3.2.0-29-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-3.2.0-30-generic - Linux kernel image for version 3.2.0 on 64 bit x86 SMP
linux-image-3.2.0-30-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-3.2.0-31-generic - Linux kernel image for version 3.2.0 on 64 bit x86 SMP
linux-image-3.2.0-31-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-3.2.0-32-generic - Linux kernel image for version 3.2.0 on 64 bit x86 SMP
linux-image-3.2.0-32-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-3.2.0-33-generic - Linux kernel image for version 3.2.0 on 64 bit x86 SMP
linux-image-3.2.0-33-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-3.5.0-18-generic - Linux kernel image for version 3.5.0 on 64 bit x86 SMP
linux-image-current-generic - Depends on the most recently released generic kernel image and headers.
linux-image-extra-3.2.0-24-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-extra-3.2.0-25-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-extra-3.2.0-26-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-extra-3.2.0-27-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-extra-3.2.0-29-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-extra-3.2.0-30-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-extra-3.2.0-31-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-extra-3.2.0-32-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-extra-3.2.0-33-virtual - Linux kernel image for version 3.2.0 on 64 bit x86 Virtual Guests
linux-image-generic-lts-quantal - Generic Linux kernel image
linux-image-hwe-generic - Depends on the generic hardware enablement kernel image and headers.
linux-image-3.2.0-24-generic-pae - Linux kernel image for version 3.2.0 on 64 bit x86 SMP
linux-image-3.2.0-25-generic-pae - Linux kernel image for version 3.2.0 on 32 bit x86 SMP
linux-image-3.2.0-26-generic-pae - Linux kernel image for version 3.2.0 on 32 bit x86 SMP
linux-image-3.2.0-27-generic-pae - Linux kernel image for version 3.2.0 on 32 bit x86 SMP
linux-image-3.2.0-29-generic-pae - Linux kernel image for version 3.2.0 on 32 bit x86 SMP
linux-image-3.2.0-30-generic-pae - Linux kernel image for version 3.2.0 on 32 bit x86 SMP
linux-image-3.2.0-31-generic-pae - Linux kernel image for version 3.2.0 on 32 bit x86 SMP
linux-image-3.2.0-32-generic-pae - Linux kernel image for version 3.2.0 on 32 bit x86 SMP
linux-image-3.2.0-33-generic-pae - Linux kernel image for version 3.2.0 on 32 bit x86 SMP
linux-image-3.2.0-33-lowlatency - Linux kernel image for version 3.2.0 on x86/x86_64
linux-image-3.2.0-33-lowlatency-pae - Linux kernel image for version 3.2.0 on x86


$ apt-get install linux-image-3.2.0-33-generic
$ init 6
$ uname -a
Linux sun-Inspiron-One-2320 3.2.0-33-generic #52-Ubuntu SMP Thu Oct 18 16:29:15 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

我建议您不要在类本身中实现侦听器。我认为每个组件都应该有自己的侦听器（按源分支可能不是最好的主意）

另外，如果您不需要实现所有的方法，那么最好进行扩展。

在Ubuntu 12.04/OpenJDK上可以像预期的那样工作

注:

Swing GUI对象应仅在上构造和操作
考虑
```
将MouseAdapter
```
扩展到
```
实现MouseListener
```
对按钮使用
```
ActionListener
```
，例如
```
Action
```
，而不是
```
MouseListener
```
框架内容窗格上的侦听器触发final
```
else
```
子句

附录：请注意，覆盖

mouseClicked（）

可能需要特定的平台相关驱动程序和控制面板设置，例如双击计时和鼠标按钮反弹跳。改为覆盖

mousePressed（）

或

mouseereleased（）

$ uname -a Linux vm 3.2.0-33-generic-pae #52-Ubuntu SMP Thu Oct 18 16:39:21 UTC 2012 i686 i686 i386 GNU/Linux $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04.1 LTS Release: 12.04 Codename: precise $ java -version java version "1.6.0_24" OpenJDK Runtime Environment (IcedTea6 1.11.5) (6b24-1.11.5-0ubuntu1~12.04.1) OpenJDK Client VM (build 20.0-b12, mixed mode, sharing)

我尝试了每个侦听器的每个组件，但它也不起作用。 $ uname -a Linux vm 3.2.0-33-generic-pae #52-Ubuntu SMP Thu Oct 18 16:39:21 UTC 2012 i686 i686 i386 GNU/Linux $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04.1 LTS Release: 12.04 Codename: precise $ java -version java version "1.6.0_24" OpenJDK Runtime Environment (IcedTea6 1.11.5) (6b24-1.11.5-0ubuntu1~12.04.1) OpenJDK Client VM (build 20.0-b12, mixed mode, sharing)

import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;

public class MouseMethods extends MouseAdapter {

    private JLabel label = new JLabel("This is a JLabel");
    private JButton button = new JButton("This is a JButton");

    public MouseMethods() {
        JFrame frame = new JFrame("MouseMethods");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLayout(new FlowLayout());

        label.addMouseListener(this);
        button.addMouseListener(this);
        frame.getContentPane().addMouseListener(this);

        frame.add(label);
        frame.add(button);
        frame.pack();
        frame.setVisible(true);
    }

    @Override
    public void mousePressed(MouseEvent e) {
        if (e.getSource().equals(button)) {
            System.out.println("The JButton was clicked...");
        } else if (e.getSource().equals(label)) {
            System.out.println("The JLabel was clicked...");
        } else {
            System.out.println("Something else was clicked...");
        }
    }

    public static void main(String args[]) {
        EventQueue.invokeLater(new Runnable() {

            @Override
            public void run() {
                new MouseMethods();
            }
        });
    }
}