禁用舞台按钮X

您不应该关注X，而应该关注像这样的通用关闭请求：

primaryStage.setonCloseRequest(new EventHandler<WindowEvent>() {    @Override    public void handle(WindowEvent event) {        // consume event        event.consume();        // show close dialog        alert alert = new alert(alertType./confirm/iATION);        alert.setTitle("Close /confirm/iation");        alert.setHeaderText("Do you really want to quit?");        alert.initOwner( primaryStage);        Optional<ButtonType> result = alert.showAndWait();        if (result.get() == ButtonType.OK){ Platform.exit();        }    }});