WheelTimer golang crontab , 规则同 Java spring crontab
# wheeltimer
```
Linux
* * * * * *
- - - - - -
| | | | | |
| | | | | + year [optional]
| | | | +----- day of week (0 - 7) (Sunday=0 or 7)
| | | +---------- month (1 - 12)
| | +--------------- day of month (1 - 31)
| +-------------------- hour (0 - 23)
+------------------------- min (0 - 59)
Java(Spring) AND GO(wheeltimer)
* * * * * * *
- - - - - - -
| | | | | | |
| | | | | | + year [optional]
| | | | | +----- day of week (0 - 7) (Sunday=0 or 7)
| | | | +---------- month (1 - 12)
| | | +--------------- day of month (1 - 31)
| | +-------------------- hour (0 - 23)
| +------------------------- min (0 - 59)
+------------------------------ second (0 - 59)
```
## crontab规则表达式验证网址
> 很实用的工具，推广一下： [crontab表达式验证网址](https://tool.lu/crontab/)
## wheeltimer: Use github.com/farmerx/wheeltimer
```
wg := &sync.WaitGroup{}
wheel := NewTimingWheel(context.TODO())
timeout := NewOnTimeOut(func() {
fmt.Println(`hahahah `)
})
timerID := wheel.AddTimer(`1 7/13 * * * *`, timeout)
fmt.Printf("Add timer %d\n", timerID)
c := time.After(9 * time.Minute)
wg.Add(1)
go func() {
for {
select {
case timeout := <-wheel.TimeOutChannel():
timeout.Callback()
case <-c:
wg.Done()
}
}
}()
wg.Wait()
wheel.Stop()
```
- 授权协议：
- MIT
- 开发语言：
- go 查看源码»
- 操作系统：
- windows, mac OS, linux
