java - 仅调度线程一次。

Question

如何修复我的线程以将线程的初始延迟安排为 2 分钟并且不再安排它。 (即仅安排一次)

@Scheduled(fixedDelay = 5000)
public void myJob() {
     Thread.sleep(12000);
}

Answer 1

您可以使用ScheduledExecutorService在这种情况下。它是一个 ExecutorService，可以安排命令在给定的延迟后运行，或定期执行。

ScheduledFuture schedule(Callable callable, long delay, TimeUnit unit)

Creates and executes a ScheduledFuture that becomes enabled after the given delay.

callable - the function to execute
delay - the time from now to delay execution
unit - the time unit of the delay

  ScheduledExecutorService service = null;

    service = Executors.newScheduledThreadPool(1);

    service.schedule(() -> {
        myMethodNameWhichIWantToExecute();
    }, 2, TimeUnit.MINUTES);

    if (service != null) service.shutdown();