Question

我有＃ closeMethod ，当用户转到我的应用中的文件 - >退出时会被调用：

 public void closeProgram(){

    int choice = JOptionPane.showConfirmDialog(null, "Do You want to exit the program ? ", "Exit Panel", JOptionPane.YES_NO_OPTION);

    if(choice == JOptionPane.YES_OPTION){                    

        Thread ending = new Thread(){

            @Override
            public void run(){

                aboutDevelopers();
            }

        };

        ending.start();        
        System.exit(0);                        
    }

}

我在这里有＃ aboutDevelopers 方法：当通过File-＆gt; AboutDevelopers调用它时，它会很好地显示但是在closeProgram（）上，它会崩溃。

public void aboutDevelopers(){

    try {

        Stage stage = new Stage();
        Parent root = FXMLLoader.load(getClass().getResource("AboutUsLayout.fxml"));

        Scene scene = new Scene(root);

        stage.setTitle("About Developers");            
        stage.setScene(scene);
        stage.setResizable(false);
        stage.show();             

    } catch (IOException ex) {
        Logger.getLogger(FirstLayoutController.class.getName()).log(Level.SEVERE, null, ex);

    }    

}

我希望程序等待用户关闭 AboutUsLayout 窗口，然后退出。

我的堆栈跟踪：

Executing D:\Tilak\BeansProjects\WhatsThePassword\dist\run1156653616\WhatsThePassword.jar using platform C:\Program Files\Java\jdk1.8.0_05\jre/bin/java
Exception in thread "Thread-6" java.lang.IllegalStateException: Not on FX application thread; currentThread = Thread-6
    at com.sun.javafx.tk.Toolkit.checkFxUserThread(Toolkit.java:210)
    at com.sun.javafx.tk.quantum.QuantumToolkit.checkFxUserThread(QuantumToolkit.java:393)
    at javafx.stage.Stage.<init>(Stage.java:233)
    at javafx.stage.Stage.<init>(Stage.java:219)
    at password.FirstLayoutController.aboutDevelopers(FirstLayoutController.java:470)
    at password.FirstLayoutController$1.run(FirstLayoutController.java:412)

尝试在退出Java FX之前显示窗口时抛出异常

0 个答案: