我玩了一点，这就是我的想法。我正在使用a，
CountDownLatch并且基本上将其
await()方法作为一种方法公开给我的
SwingWorker对象。仍在寻找更好的解决方案。
final class Worker extends SwingWorker<Void, Void> { private final CountDownLatch actuallyFinishedLatch = new CountDownLatch(1); @Override protected Void doInBackground() throws Exception { try { System.out.println("Long Task Started"); for (int i = 0; i < 1000000000; i++) { double d = Math.sqrt(i); } return null; } finally { actuallyFinishedLatch.countDown(); } } public void awaitActualCompletion() throws InterruptedException { actuallyFinishedLatch.await(); } public static void main(String[] args) { Worker worker = new Worker(); worker.execute(); try { TimeUnit.SECONDS.sleep(1); } catch (InterruptedException e) { } System.out.println("Cancelling"); worker.cancel(true); try { worker.get(); } catch (CancellationException e) { System.out.println("CancellationException properly thrown"); } catch (InterruptedException e) { } catch (ExecutionException e) { } System.out.println("Awaiting Actual Completion"); try { worker.awaitActualCompletion(); System.out.println("Done"); } catch (InterruptedException e) { } }}
