=nil{returnnil,err}return&SpecSchedule{Second:second,Minute:minute,Hour:hour,Dom:dayofmonth,Month:month,Dow:dayofweek,},nil} 该函数主要是将cron表达式映射为“Second, Minute, Hour, Dom, Month, Dow”6个时间维度的结构体SpecSchedule。 SpecSchedule是实现了方法“Next(time.Time) time.Time”的结构体,...
Minute { logger.Info("delay", "duration", dur) } j.Run() }) } } 首先定义一个互斥锁sync.Mutex,记录当前时间并获取锁,如果上一个任务还未结束就一直持有锁,直到上一个执行结束,锁才会被释放,保证了任务被串行执行。 SkipIfStillRunning:触发时,如果上一次任务还未完成,则跳过此次执行 代码语言:...
import{CronExpressionParser,CronFieldCollection,CronHour,CronMinute}from'cron-parser';// Parse original expressionconstinterval=CronExpressionParser.parse('0 7 * * 1-5');// Create new collection with modified fields using raw valuesconstmodified=CronFieldCollection.from(interval.fields,{hour:[8],mi...
- `*` Asterisks: Any value - `1-3,5` Ranges: Ranges and individual values - `*/2` Steps: Every two units Detailed patterns and explanations are available atcrontab.org. The examples in the link have five fields, and 1 minute as the finest granularity, but our cron scheduling supports...
Now let’s add the script to ourcrontaband let it run every minute with the following line: ***/home/shovon/bin/timer.sh Once you save thecrontabfile and exit out of the text editor, the newcrontabfile should be installed. After
1type SpecSchedule struct {2Second, Minute, Hour, Dom, Month, Dow uint643} 从开始介绍的 Cron 表达式可以容易得知各个字段的意思,同时,对各种表达式的解析也会最终得到一个 SpecSchedule 的实例。库中的 Parse 返回的其实就是 SpecSchedule 的实例(当然也就实现了 Schedule 接口)。 ② ConstantDelaySchedule...
{ goto WRAP } } // 分 for 1<<uint(t.Minute())&s.Minute == 0 { if !added { added = true t = t.Truncate(time.Minute) } t = t.Add(1 * time.Minute) if t.Minute() == 0 { goto WRAP } } // 秒 for 1<<uint(t.Second())&s.Second == 0 { if !added { added = ...
")).build();Date ft = sched.scheduleJob(job, trigger);log.info(job.getKey() + " has been scheduled to run at: " + ft+ " and repeat based on expression: "+ trigger.getCronExpression());// job 2 will run every other minute (at 15 seconds past the minute)job = newJob(Simple...
functiontranslateCronExpression(cronExpression){constcronObj=parseCronExpression(cronExpression);if(!cronObj){return'Invalid Cron expression';}lettranslation='';// Translation for minute fieldif(cronObj.minute!=='*'){translation+=`Every${cronObj.minute}minutes`;}else{translation+='Every minute';}/...
Attention: make sure you set the server crontab job to a correctly chosen frequency because if there is for example a cronjob defined in code to run every minute, your general crontab job needs to run at least every minute as well to work properly. ...