JavaFX窗体设置无边框

public void start(Stage stage) throws Exception {
        longStart();
        Parent root = FXMLLoader.load(getClass().getResource("FXMLDocument.fxml"));

        Scene scene = new Scene(root);

        stage.setScene(scene);
        stage.initStyle(StageStyle.UNDECORATED);//设定窗口无边框
        stage.show();
    }