Question

我为我的应用程序构建了一个非常简单的通知系统，这是完整的类：

public class Notification extends JFrame {
    Timer timer;
    private static int count = 0;
    private String from;
    private String msg;
    private String time;
    private final JLabel jLabel1;
    private final JLabel jLabel2;
    private final JLabel jLabel3;
    private final JLabel jLabel4;    

    public void NotificationStart(int seconds) {
        timer = new Timer();
        timer.schedule(new RemindTask(), seconds*1000);
    }

    class RemindTask extends TimerTask {
        public void run() {
            System.out.format("Remove notification");             
            timer.cancel(); //Terminate the timer thread

            dispose(); // Remove the window

            count--; 
        }
    }    

    public Notification(String from, String msg, String time) {
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();

        getContentPane().setLayout(null);
        setSize(308,77);
        setBackground(new Color(0, 255, 0, 0));        
        setLocationRelativeTo(null);
        setUndecorated(true); 
        setAlwaysOnTop(true);

        jLabel2.setFont(new java.awt.Font("Lucida Grande", 1, 12)); 
        jLabel2.setText(from + ":");
        jLabel2.setBounds(38, 11, 240, 15);
        jLabel1.add(jLabel2);

        jLabel3.setFont(new java.awt.Font("Lucida Grande", 0, 12)); 
        jLabel3.setText(msg);
        jLabel3.setBounds(38, 25, 240, 50);
        jLabel1.add(jLabel3);

        jLabel4.setBounds(280, 6, 16, 16);
        jLabel1.add(jLabel4);        

        // Start timer
        NotificationStart(8);

        jLabel1.setIcon(new javax.swing.ImageIcon(getClass().getResource("/resources/notification.png")));
        getContentPane().add(jLabel1);
        jLabel1.setBounds(0, 0, 308, 77);            

        // Position it
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice defaultScreen = ge.getDefaultScreenDevice();
        Rectangle rect = defaultScreen.getDefaultConfiguration().getBounds();
        int x = (int) rect.getMaxX() - (this.getWidth() + 10);
        int y;

        if(this.count == 0) {
            y = (int) rect.getMinY() - 46 + this.getHeight();
        } else {
            y = (int) rect.getMinY() + 30 + (this.getHeight() * this.count);
        }


        this.setLocation(x, y); 
        this.setVisible(true);
        this.count = count + 1;

        jLabel1.addMouseListener(new MouseAdapter() {  
            public void mouseReleased(MouseEvent e) {   
                // Remove notification if user clicks it
                dispose();
            }

            public void mouseEntered(MouseEvent e) {   
                // Show the close icon
                jLabel4.setIcon(new javax.swing.ImageIcon(getClass().getResource("/resources/icnClose.png")));
            }            

            public void mouseExited(MouseEvent e) {   
                // Hide the close icon
                jLabel4.setIcon(null);
            }            

        }); 
    }

要生成通知，我在主JFrame中使用以下代码：

new Notification("Thomas", "New notification!", "13.25");

只要我在NetBeans中运行代码，一切都与我想要的方式完全一样。如果我从NetBeans执行Clean and Build并尝试运行可执行jar，应用程序就会停止。

我知道错误在这个类中有某种原因，因为如果我没有从我的主JFrame中调用Notification类，那么jar就可以执行了。

有什么想法吗？

Answer 1

当您尝试运行可执行jar时，这可能是依赖性问题。有一些maven（假设你正在使用带有Netbeans的maven，因为这是目前正常的用例）插件用于将依赖jar与可执行jar捆绑在一起。

从命令行而不是java -jar尝试此操作以帮助您进行调试：

mvn exec:java -Dexec.mainClass="com.example.Main" [-Dexec.args="argument1"] ...

Class不会在Jar中运行但从Netbeans运行良好

1 个答案: