为GUI创建一个单独的类：

Create a separate class for the GUI:

public class Main {

    public static void main(String[] args) {
        if (args != null && args.length > 0 && args[0].equals("cli")) {
            String pathToProperties = args[1];
            Cli cli = new Cli(pathToProperties);
            cli.loadPropertiesAndGenerateApk();
        } else {
            Application.launch(GUIApp.class, args);
        }
    }
}

和

public class GUIApp extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception {
        FXMLLoader loader = new FXMLLoader(getClass().getResource("view/sample.fxml"));

        Parent root = (Parent) loader.load();
        primaryStage.setTitle("Allowed Site Configurator");
        primaryStage.setScene(new Scene(root, 800, 800));
        primaryStage.show();
    }

}

并配置构建以便 Main 是主类。

and configure the build so that Main is the main class.