Use Quartz. net in. Net, and use quartz.net in. net.

Use Quartz. net in. Net, and use quartz.net in. net.

Quartz.net is a job scheduling framework.

1. Add quartz.net references to the project (nuget management is used here)

 

 

 

Create a new class TimingJob, which is mainly used to implement the task Logic

Using Quartz; using System; namespace QuartzNetDemo {// <summary> // scheduled task class /// </summary> public class TimingJob: IJob {public void Execute (IJobExecutionContext context) {// write the logic code to be periodically executed on the Console. writeLine ("task executed ");}}}

 

In Program. cs: (here is the console application)

using Quartz;using Quartz.Impl;using System;namespace QuartzNetDemo{    class Program    {        static void Main(string[] args)        {            ISchedulerFactory sf = new StdSchedulerFactory();            IScheduler scheduler = sf.GetScheduler();            IJobDetail job = JobBuilder.Create<TimingJob>().WithIdentity("job1", "mygroup").Build();            ITrigger trigger = TriggerBuilder.Create().StartAt(DateTime.Now.AddSeconds(5)).WithCronSchedule("/2 * * ? * *").Build();            scheduler.ScheduleJob(job,trigger);            scheduler.Start();        }    }}

When the program is running, information is output every 2 seconds after 5 seconds

 

 

Cron expression:

The cron expression in quartz. NET is like "/5 **? * ** "This is a 7-bit expression. The last year is optional. The expression is left to right, the second, minute, hour, day of the month, month, day of the week, and year.

Name	Range	Special characters that can be used
Seconds	0-59	,-*/
Minutes	0-59	,-*/
Hours	0-23	,-*/
Day of month	1-31	,-*? /L W
Month	1-12 or JAN-DEC	,-*/
Day of week	1-7 or SUN-SAT	,-*? /L #
Year	Null, 1970-2099	,-*/

 

Special characters and explanations:

, Or.
/A/B. A: Start Time and B frequency.
* Frequency. That is, every fluctuation.
-Interval.
? Any value. That is, every fluctuation. It can only be used in DayofMonth and DayofWeek. Specify one for another?
L indicates the end. It can only be used in DayofMonth and DayofWeek
W working days. Indicates the end. It can only be used in DayofWeek
# X # y. Only DayofMonth can be used. Week y of a month x