JavaFX并发冻结界面

import javafx.concurrent.Task;

public class MyTask extends Task<Void> {
    @Override
    protected Void call() throws Exception {
        // 执行耗时操作
        return null;
    }
}

import javafx.application.Application;
import javafx.concurrent.Task;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class Main extends Application {
    @Override
    public void start(Stage primaryStage) {
        Button button = new Button("执行耗时操作");
        button.setOnAction(event -> {
            // 创建并启动任务
            Task<Void> task = new MyTask();
            new Thread(task).start();
        });

        VBox root = new VBox(button);
        Scene scene = new Scene(root, 300, 200);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

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