Quartz. Net scheduled task (instance), quartz.net instance

Quartz. Net scheduled task (instance), quartz.net instance

1. What is Quartz. Net?

Quartz. Net is a scheduled task framework.

 

2. Why do I need Quartz. Net if I have Timer?

Quartz. Net is more flexible than Timer. For example, if you do things at on the last Sunday of every month, it will be a lot of trouble to implement Timer.

 

Iii. How to Use Quartz. Net?

I. No configuration implementation

1. Download and reference three DLL files: Quartz. dll, Common. Logging. dll, and Common. Logging. Core. dll.

2. Create a task operation class:

1 public class TimingJob: IJob2 {3 public void Execute (IJobExecutionContext context) 4 {5 // The logic code to be periodically executed is written here 6 Console. writeLine (DateTime. now. toString () + "\ t has been working for too long. Please rest for 10 minutes. "); 7} 8}

3. Create processing class and trigger class

1 class Program 2 {3 static void Main (string [] args) 4 {5 ISchedulerFactory sf = new StdSchedulerFactory (); 6 IScheduler schedfactory = sf. getScheduler (); // create a scheduling instance 7 // create a task instance 8 IJobDetail job = JobBuilder. create <TimingJob> (). withIdentity (new JobKey ("job1 ")). build (); 9 // create a trigger instance 10 ITrigger trigger = TriggerBuilder. create (). startAt (DateTime. now. addSeconds (0 )). withCronSchedule ("59 59 23? * 1L "). Build (); 11 scheduler. ScheduleJob (job, trigger); // bind the trigger and task 12 scheduler. Start (); // Start monitoring 13} 14}

 

II. Implementation through configuration files

1. apply three DLL types: Quartz. dll, Common. Logging. dll, and Common. Logging. Core. dll.

2. Create a work class:

1 public class PrintTimeJob: IJob2 {3 public void Execute (IJobExecutionContext context) 4 {5 Console. WriteLine (DateTime. Now. ToString () + "has been working for a long time. Have a rest! "); 6} 7}

3. configuration file for the work class and trigger class (quartz_jobs.xml)

1 <? Xml version = "1.0" encoding = "UTF-8"?> 2 <job-scheduling-data xmlns =" http://quartznet.sourceforge.net/JobSchedulingData "Xmlns: xsi =" http://www.w3.org/2001/XMLSchema-instance "Version =" 2.0 "> 3 <processing-directives> 4 <overwrite-existing-data> true </overwrite-existing-data> 5 </processing-directives> 6 <schedule> <! -- Job configuration --> 7 <job> 8 <name> PrintTimeJob </name> 9 <group> PrintGroup </group> 10 <description> recyclgresourcesjob </description> 11 <job- type> SettingMothod. printTimeJob, SettingMothod </job-type> 12 <durable> true </durable> 13 <recover> false </recover> 14 </job> 15 <trigger> <! -- Trigger configuration --> 16 <cron> 17 <name> PrintDateTimeTrigger </name> 18 <group> PrintDateTimeTriggerGroup </group> 19 <job-name> PrintTimeJob </job-name> 20 <job-group> PrintGroup </job-group> 21 <cron-expression> 59 59 23? * 1L </cron-expression> // 22 </cron> 23 </trigger> 24 </schedule> 25 </job-scheduling-data>

4. Set the configuration file (App. config)

1 <? Xml version = "1.0" encoding = "UTF-8"?> 2 <configuration> 3 <configSections> 4 <section name = "quartz" type = "System. configuration. nameValueSectionHandler "/> 5 </configSections> 6 <quartz> 7 <add key =" quartz. scheduler. instanceName "value =" ExampleDefaultQuartzScheduler "/> 8 <add key =" quartz. threadPool. type "value =" Quartz. simpl. simpleThreadPool, Quartz "/> 9 <add key =" quartz. threadPool. threadCount "value =" 10 "/> 10 <add key =" quartz. threadPool. ThreadPriority "value =" 2 "/> 11 <add key =" quartz. jobStore. misfireThreshold "value =" 60000 "/> 12 <add key =" quartz. jobStore. type "value =" Quartz. simpl. RAMJobStore, Quartz "/> 13 <! -- ****************************** Plugin configuration ******* ************************************ --> 14 <add key = "quartz. plugin. xml. type "value =" Quartz. plugin. xml. XMLSchedulingDataProcessorPlugin, Quartz "/> 15 <add key =" quartz. plugin. xml. fileNames "value = "~ /Quartz_jobs.xml "/> 16 </quartz> 17 </configuration>

5. instantiate and start task scheduling.

1 class Program 2 {3 static void Main (string [] args) 4 {5 ISchedulerFactory sf = new StdSchedulerFactory (); 6 IScheduler sched = sf. getScheduler (); // create a scheduling instance 7 sched. start (); // enable scheduling 8 Console. writeLine ("started successfully"); 9 Console. readKey (); 10} 11}

 

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