cron更改后，Sprng Boot@Scheduled task停止工作

Question

这里是Spring靴。我有一个预定的背景任务，我每小时都要开始：

@Component
public class TokenReaper {
    @Scheduled(cron = "0 0 * * * *")
    public void fire() {
        // Doesn't matter what it does...
    }
}

我实际上需要它现在只在每天早上8:26运行，所以在那个时候每天只运行一次（奇怪，我知道！），所以我将cron表达式更改为：

@Component
public class TokenReaper {
    @Scheduled(cron = "0 26 8 * * *")
    public void fire() {
        // Doesn't matter what it does...
    }
}

进行此更改后，任务在上午8:26停止运行，由于日志的原因，我无法判断它何时实际运行或是否实际运行！有人能看到我的新cron表达式是否格式错误或未正确设置为每天早上8:26运行吗？！

Answer 1

试试这个

@Scheduled(cron = "0 26 8 * * ?")

Cron表达式由六个字段表示：

second, minute, hour, day of month, month, day(s) of week

示例模式

* "0 0 * * * *" = the top of every hour of every day.
* "*/10 * * * * *" = every ten seconds.
* "0 0 8-10 * * *" = 8, 9 and 10 o'clock of every day.
* "0 0 8,10 * * *" = 8 and 10 o'clock of every day.
* "0 0/30 8-10 * * *" = 8:00, 8:30, 9:00, 9:30 and 10 o'clock every day.
* "0 0 9-17 * * MON-FRI" = on the hour nine-to-five weekdays
* "0 0 0 25 12 ?" = every Christmas Day at midnight

Answer 2

您需要添加 在您的cron表达式中：

将计划（cron=“0 26 8***”）更改为：

@Scheduled(cron = "0 26 8 * * ?")