public static void showTimedDialog(long time, String message) { Stage popup = new Stage(); popup.setAlwaysOnTop(true); popup.initModality(Modality.APPLICATION_MODAL); Button closeBtn = new Button("知道了"); closeBtn.setOnAction(e -> { popup.close(); }); VBox root = new VBox(); root.setPadding(new Insets(20)); root.setAlignment(Pos.BASELINE_CENTER); root.setSpacing(20); root.getChildren().addAll(new Label(message), closeBtn); Scene scene = new Scene(root); popup.setScene(scene); popup.setTitle("提示信息"); popup.show(); Thread thread = new Thread(() -> { try { Thread.sleep(time); if (popup.isShowing()) { Platform.runLater(() -> popup.close()); } } catch (Exception exp) { exp.printStackTrace(); } }); thread.setDaemon(true); thread.start(); }