需要在java中以特定的时间间隔运行特定的功能 [英] need to run specific functionality at specific interval in java

问题描述

我有一个特定的要求。

I have a specific requirement.

我有一个通知功能，可以将电子邮件发送给所有系统客户端。
代码用java编写。

I have a notification functionality which sends the email to all the systems clients. The code is written in java.

我想要做的是，我想执行特定的工作，以特定的间隔发送电子邮件，如一次2天或一周或一个月一次。

What i want to do is, i want to execute that specific job which sends the email at specific intervals like once in a 2 days or once in a week or a month.

截至目前，我还没有关于如何做到这一点的线索。我们正在使用Quartz，但我认为现在不符合我的要求。

As of now i don't have a clue about how to do this. We are using Quartz but I think that wont fit into my requirement as of now.

如果有人有任何想法，请告诉我。

Please let me know if anyone has any idea.

推荐答案

为什么不使用 ScheduledThreadPoolExecutor ，允许您安排将来执行的任务。

Why not use a ScheduledThreadPoolExecutor which allows you to schedule tasks to execute in future.

ScheduledExecutorService scheduledExecutorService =
        Executors.newScheduledThreadPool(5);

ScheduledFuture scheduledFuture =
    scheduledExecutorService.schedule(new Callable() {
        public Object call() throws Exception {
            System.out.println("Executed!");
            return "Called!";
        }
    },
    5,
    TimeUnit.SECONDS);

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