访问控制器，然后从另一个类执行功能

Question

所以，当我尝试运行java代码我得到的错误

异常在线程“AWT-EventQueue的 - 0” java.lang.IllegalStateException：不上FX应用程序线程; currentThread = AWT-EventQueue的-0

LoginController.java

public class LoginController { 

    public void onSessionLoginAction() { 
     //I have some functions here so i just minimize a bit of the code 
     loginUser(); 
    } 

    public void loginUser() { 
     Init.getInstance().hideWindow("login"); // Error <--- 
     Init.getInstance().setEnabled(true); // Error <--- 
     Init.getInstance().run();    // Success <-- 
    } 
} 

Init.java

public abstract class Init extends Application { 

    private static Init instance; 
    private boolean isEnabled = false; 
    private Timer timer; 

    public void initialize(Stage stage) { 
     instance = this; 

     // Login with session if you can :) Success to run this code here 
     timer = new Timer(50, new ActionListener() { 
     public void actionPerformed(ActionEvent e) { 
      FXMLLoader loader = loginWindow.getFxmlLoader(); 
      LoginController loginController = loader.<LoginController>getController(); 
      loginController.onSessionLoginAction(); //This runs the session on LoginController.java 
      timer.stop(); 
      } 
     }); 
     timer.start(); 
    } 

    public void setEnabled(boolean flag) { 
     isEnabled = flag; 
    } 

    public static Init getInstance() { 
     return instance; 
    } 
    public abstract void run(); 
} 

Answer 1

要么运行

Platform.runLater(new Runnable() { 
    @Override 
    public void run() { 
     loginController.onSessionLoginAction(); 
    } 
}); 

您的代码或使用Timeline代替Timer的。