Primary knowledge quartz (introductory case) + common cron expressions

1.Quartz Frame composition

1. Physical Layer

 Packagecn.happy.entity;//1. Public classPlan {//Time    PrivateString date; //Task    PrivateString task;  PublicPlan (string date, string task) { This. Date =date;  This. Task =task; }     PublicPlan () {} @Override PublicString toString () {return"Plan [date=" + Date + ", task=" + task + "]"; }     PublicString getDate () {returndate; }     Public voidsetDate (String date) { This. Date =date; }     PublicString Gettask () {returntask; }     Public voidsettask (String Task) { This. Task =task; }        }

Plan entity class

2. Service Layer

 PackageCn.happy.service;Importjava.util.ArrayList;Importjava.util.List;//2.ImportCn.happy.entity.Plan; Public classRemindservice {//0.2 ways to print reminders in a collection     Public voidPrintmessage () {List<Plan> list=Getplasnfortoday ();  for(Plan plan:list) {//the individual planSystem.out.println ("Planned Time" +plan.getdate () + "\ t plan content:" +Plan.gettask ()); }    }        //creates a collection, and the method return value is a collection type     PublicList<plan>Getplasnfortoday () {List<Plan> list=NewArraylist<plan>(); Plan Plan1=NewPlan ("December 17, 2016", "The end of the month can buy a ticket home!" "); Plan plan2=NewPlan ("December 17, 2016", "WebService");        List.add (PLAN2);        List.add (PLAN1); returnlist; }}

Remindservice

3. Definition of Task class Remindjob implements job

 PackageCn.happy.quartz;ImportCn.happy.service.RemindService;//make a normal class into a plan Public classRemindjobImplementsjob{//Implant Service Objects    PrivateRemindservice service=NewRemindservice (); @Override Public  voidExecute (Jobexecutioncontext context)throwsjobexecutionexception{service.printmessage (); }     PublicRemindservice GetService () {returnService; }     Public voidSetservice (Remindservice service) { This. Service =Service; }    }

Remindjob

3. Synthesize our plans and triggers in the test class

Scheduler ≈job+trigger

 Packagecn.happy.test;Importjava.sql.Date;ImportCn.happy.quartz.RemindJob; Public classMyquertztest { Public Static voidTool ()throwsschedulerexception{//The first step to build the jobJobdetail Job=jobbuilder.newjob (remindjob.class)//. Withidentity ("Job1", "group1")//. Build (); //Step two build trigger        /*Date Runtime=datebuilder.evenminutedate (new Date (System.currenttimemillis ())); Trigger Trigger=triggerbuilder.newtrigger (). Withidentity ("Trigger1", "group1")//. StartAt (RunTime). build (); /c0>*/                /*Trigger Trigger=triggerbuilder.newtrigger ()//. Withidentity (Triggerkey.triggerkey ("Mytrigger", "MyTrigge Rgroup "))//. Withschedule (Simpleschedulebuilder.simpleschedule ()////.withintervalin Minutes (1)//One minute appears once//.withintervalinmilliseconds (2)//Two milliseconds appears once Withintervalin Seconds (2)//2 second appears once//.repeatforever ()//Can be omitted)//. StartAt (New D Ate (System.currenttimemillis () +2000))//. Build ();*/Trigger Trigger=triggerbuilder.newtrigger ()//. Withidentity ("Mytrigger", "Mytriggergroup")//. Withschedule (Cronschedulebuilder.cronschedule ("0 55 08? * 1#3 2016 ") . Build (); //step three bind Job and TriggerSchedulerfactory sf=Newstdschedulerfactory (); Scheduler sched=Sf.getscheduler ();        Sched.schedulejob (Job,trigger);        Sched.start (); //Thread.Sleep (+);//Sleep 3 secondsSched.shutdown ();//Stop    }             Public Static voidMain (string[] args)throwsschedulerexception {tool (); System.out.println ("Aaaaaaaaa"); }    }

Test Class

Summary: Commonly used cron expressions

Primary knowledge quartz (introductory case) + common cron expressions