Job scheduling Framework Quartz Learning Notes (iii)--cron expression

The previous two is a simple trigger (Simpletrigger), Simpletrigger can only handle simple events, if you want to be flexible to trigger the task, you need to

Crontrigger this important person.

Crontrigger is also one of the most important features of quartz, by quartz specific cron expression to determine a certain kind of time, can complete similar "November 11, 2011 (God Stick Day, has passed), each Wednesday xxx" complex timing tasks.

Code or old routine, two classes: Simplejob.java and Crontriggerexample.java

It is recommended to run the code first, see the results, and then look at the code

Simplejob.java[Java]  View plain copy import java.text.simpledateformat;   import java.util.calendar;       import org.quartz.job;   import org.quartz.jobexecutioncontext;    import org.quartz.jobexecutionexception;      Public class simplejob  implements Job {           @Override         public void execute (jobexecutioncontext context)                 throws JobExecutionException {            // job  's name             string jobname = context.getjobdetail (). GetKey (). GetName ();                      //   Time of task execution           simpledateformat dateformat = new  simpledateformat ("yyyy  year  MM  month  dd  Day   HH  time  mm  Division  ss   sec ");           String jobRunTime =  Dateformat.format (Calendar.getinstance (). GetTime ());                       //  Output Task performance             system.out.println ("Task  : "  + jobName +  "      " +jobRunTime + "   executed   ");      &nbsp}   }  

Crontriggerexample.java[Java]  View Plain copy import static org.quartz.cronschedulebuilder.cronschedule;   import  static org.quartz.JobBuilder.newJob;   import static  org.quartz.triggerbuilder.newtrigger;      import java.text.simpledateformat;    import java.util.date;      import org.quartz.crontrigger;   Import  org.quartz.JobDetail;   import org.quartz.scheduler;   import  org.quartz.schedulerfactory;   import org.quartz.schedulermetadata;   import  Use of org.quartz.impl.stdschedulerfactory;     /**   * Cron Triggers     */   public class crontriggerexample {           public static void main (String[] args)  throws Exception {            crontriggerexample example = new crontriggerexample ();            example.run ();       }