ScheduledExecutorService progressExecutorService = Executors.newScheduledThreadPool(1);
ScheduledFuture<?> future = progressExecutorService.scheduleAtFixedRate(new Runnable() {// It begins in 0.5 seconds, and executes once every second.
@Override
public void run() {
System.out.println("excel download progress:"+progress.get()+"%");
if (progress.get() == 100) {
System.out.println("excel download progress is 100%");
progressExecutorService.shutdown();
}
}
}, (long) 0.5, 1, TimeUnit.SECONDS);