Spring get next run time by cron expression 2018-05-10 04:21
I always use cron expression to execute scheduling task. I want to know when the task will be executed. I use CronSequenceGenerator to calculate the next run time which is a class of Spring Framework. The example code is here.
public class ShowNextRunTimeClient {
public static void main(String[] args) {
String cronExpr = "*/5 * * * * *";
CronSequenceGenerator generator = new CronSequenceGenerator(cronExpr);
System.out.println("now time:\t" + new Date());
Date next = generator.next(new Date());
System.out.println("next run time:\t" + next);
}
}
output
now time: Thu May 10 16:25:53 CST 2018
next run time: Thu May 10 16:25:55 CST 2018
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