在javaFX中禁用按钮，然后重新启用它

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class ButtonEnableDisable extends Application {

    @Override
    public void start(Stage primaryStage) {
        Button btn = new Button("Click me");
        btn.setOnAction(event -> {
            btn.setDisable(true); // 禁用按钮
            // 模拟一些操作，例如等待3秒
            new Thread(() -> {
                try {
                    Thread.sleep(3000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                // 重新启用按钮
                javafx.application.Platform.runLater(() -> btn.setDisable(false));
            }).start();
        });

        StackPane root = new StackPane();
        root.getChildren().add(btn);

        Scene scene = new Scene(root, 300, 250);

        primaryStage.setTitle("Button Enable/Disable Example");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}