Spring 每 15 分钟执行一次方法

Question

I tried to use cron expression from this site http://www.cronmaker.com/

@Scheduled(cron = "0 0/15 * 1/1 * ? *")
    public void clearRps() {

    }

But it throws by: java.lang.IllegalStateException: Encountered invalid @Scheduled method 'clearRps': Cron expression must consist of 6 fields (found 7 in "0 0/15 * 1/1 * ? *")

Answer 1

Just use the following cron:

@Scheduled(cron = "0 0/15 * * * *")

Spring cron expression syntax slightly differs from unix cron expression. One immediate difference - it supports 1 less field (6 rather than 7).