cron表达式每1小时执行一次_cron表达式每5分钟一次

I want a cron expression which fires every 45 minutes.

According to the documentation, I have created this 0 0/45 * * * ? expression.

But it is fired in a pattern like 12:00, 12:45, 13:00, 13:45, 14:00.

But what I expect and want is to be fired at 12:00, 12:45, 13:30, 14:15.

What am I missing?

解决方案

Cron is not meant to solve such problems. It defines the exact date and times, when a trigger must be fired, not intervals. Use a simple schedule instead:

TriggerBuilder.Create()

.StartAt(startDate)

.WithSimpleSchedule(

simpleScheduleBuilder => simpleScheduleBuilder.WithIntervalInMinutes(45))

.Build();

Edit:

It’s either a simple schedule as above, or multiple cron triggers (Quartz jobs can have multiple triggers):

0 0/45 12/3 * * ? # 12:00, 12:45, 15:00, 15:45, …

0 30 13/3 * * ? # 13:30, 16:30, …

0 15 14/3 * * ? # 14:15, 17:15, …

版权声明：本文内容由互联网用户自发贡献，该文观点仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 举报，一经查实，本站将立刻删除。

发布者：全栈程序员栈长，转载请注明出处：https://javaforall.cn/180122.html原文链接：https://javaforall.cn