cron expression parser and executor for dotnet core.
this project based on NCrontab-Advanced.
If you have any problems, make sure to file an issue here on Github.
This library support annotation method only. if you want create a crontab task, simply add the CronAttribute on some method.
We also provide some advanced features that you can get by adding some parameters to the method to get the information associated with the current task.
Here are some samples:
publicclassTestScheduler{[Cron("18/1 * * * * ? *",CronStringFormat.WithSecondsAndYears)]publicstaticvoidTask1(){Debug.WriteLine($"Task..............1111_{DateTime.Now}");}[Cron("28/1 * * * * ? *",CronStringFormat.WithSecondsAndYears)]publicstaticvoidTask2(DateTimetime,CrontabTasktask){Debug.WriteLine($"Task..............2222_{time}_{task.Method.Name}");}[Cron("28/1 * * * * ? *",CronStringFormat.WithSecondsAndYears)]publicstaticvoidTask3(DateTimetime,CrontabTasktask){Debug.WriteLine($"Task..............3333_{time}_{task.Method.Name}");}[Cron("1-8 * * * * ? *",CronStringFormat.WithSecondsAndYears)][Cron("48/1 * * * * ? *",CronStringFormat.WithSecondsAndYears)]publicstaticvoidTask4(DateTimetime,CrontabTasktask,CrontabTaskExecutortaskExecutor){Debug.WriteLine($"Task..............Cron_{time}_{task.Method.Name}_{taskExecutor.Tasks.Count}");}// this task will begin execution after 100 seconds of startup[Cron("0/1 * * * * *",100,CronStringFormat.WithSeconds)]publicstaticvoidDeferTask1(){Debug.WriteLine($"Task..............5555_{DateTime.Now}");}}The CrontabTaskExecutor class contains a constructor that with one parameter, the parameter is Func<MethodInfo, object> typeInstanceCreator. typeInstanceCreator used to create an object instance where the task method is definded. this will be very useful!
In console application, you can initialize an instance of an object with the new keyword or reflection. and in web application, you can use DI(dependency injection) directly.
For better use this library in your Web application, see the Yisoft.AspNetCore.Crontab project.
Field name | Allowed values | Allowed special characters
------------------------------------------------------------
Minutes | 0-59 | * , - /
Hours | 0-23 | * , - /
Day of month | 1-31 | * , - / ? L W
Month | 1-12 or JAN-DEC | * , - /
Day of week | 0-6 or SUN-SAT | * , - / ? L #
Year | 0001–9999 | * , - /
Released under the Apache License.