Quartz-SimpleTrigger

1.  SimpleTrigger
   Trigger 就是触发器的意思，用来指定什么时间开始触发，触发多少次，每隔多久触发一次.
   SimpleTrigger 可以方便的实现一系列的触发机制。
   
2.  下一个8秒的倍数
   
   

   public class TestQuartz {
       public static void main(String[] args) throws Exception{
               Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
     
               Date startTime = DateBuilder.nextGivenSecondDate(null, 8);
    
               JobDetail job = newJob(MailJob.class).withIdentity("mailJob", "mailGroup").build();
    
               SimpleTrigger trigger = (SimpleTrigger) newTrigger().withIdentity("trigger1", "group1").startAt(startTime).build();
    
               // schedule it to run!
               Date ft = scheduler.scheduleJob(job, trigger);
                
               System.out.println("当前时间是：" + new Date().toLocaleString());
               System.out.printf("%s 这个任务会在 %s 准时开始运行，累计运行%d次，间隔时间是%d毫秒%n", job.getKey(), ft.toLocaleString(), trigger.getRepeatCount()+1, trigger.getRepeatInterval());
               
               scheduler.start();
                 
               //等待200秒，让前面的任务都执行完了之后，再关闭调度器
               Thread.sleep(200000);
               scheduler.shutdown(true);
       }
   }

   public class MailJob implements Job {
       public void execute(JobExecutionContext context) throws JobExecutionException {
           JobDetail detail = context.getJobDetail();
            
           SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
           String now = sdf.format(new  Date());
            
           System.out.printf("发出了一封邮件, 当前时间是: %s%n" , now);
           try {
               Thread.sleep(10000);
           } catch (InterruptedException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
           }
       }
   }

3. 10 秒后运行
   使用方法：
   

    DateBuilder.futureDate()

   可以方便的获取10秒后， 5分钟后， 3个小时候，2个月后这样的时间
   
   

   public class TestQuartz {
       public static void main(String[] args) throws Exception{
               Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
      
               Date startTime = DateBuilder.futureDate(10, IntervalUnit.SECOND);
                
               JobDetail job = newJob(MailJob.class).withIdentity("mailJob", "mailGroup").build();
     
               SimpleTrigger trigger = (SimpleTrigger) newTrigger().withIdentity("trigger1", "group1").startAt(startTime).build();
     
               // schedule it to run!
               Date ft = scheduler.scheduleJob(job, trigger);
                 
               System.out.println("当前时间是：" + new Date().toLocaleString());
               System.out.printf("%s 这个任务会在 %s 准时开始运行，累计运行%d次，间隔时间是%d毫秒%n", job.getKey(), ft.toLocaleString(), trigger.getRepeatCount()+1, trigger.getRepeatInterval());
                
               scheduler.start();
                  
               //等待200秒，让前面的任务都执行完了之后，再关闭调度器
               Thread.sleep(200000);
               scheduler.shutdown(true);
       }
   }

4. 累计n次，间隔n秒
   
   

   public class TestQuartz {
       public static void main(String[] args) throws Exception{
               Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
     
               Date startTime = DateBuilder.nextGivenSecondDate(null, 8);
    
               JobDetail job = newJob(MailJob.class).withIdentity("mailJob", "mailGroup").build();
    
               SimpleTrigger trigger = (SimpleTrigger) newTrigger()
                       .withIdentity("trigger1", "group1")
                       .startAt(startTime)
                       .withSchedule(simpleSchedule()
                               .withRepeatCount(3)
                               .withIntervalInSeconds(1))
                       .build();
    
               // schedule it to run!
               Date ft = scheduler.scheduleJob(job, trigger);
                
               System.out.println("当前时间是：" + new Date().toLocaleString());
               System.out.printf("%s 这个任务会在 %s 准时开始运行，累计运行%d次，间隔时间是%d毫秒%n", job.getKey(), ft.toLocaleString(), trigger.getRepeatCount()+1, trigger.getRepeatInterval());
               
               scheduler.start();
                 
               //等待200秒，让前面的任务都执行完了之后，再关闭调度器
               Thread.sleep(200000);
               scheduler.shutdown(true);
       }
   }

5.  无限重复，间隔1秒
   注： 无限重复 累计次数是显示的0，因为没法表示无限。。
   
   

   public class TestQuartz {
       public static void main(String[] args) throws Exception{
               Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
      
               Date startTime = DateBuilder.nextGivenSecondDate(null, 8);
     
               JobDetail job = newJob(MailJob.class).withIdentity("mailJob", "mailGroup").build();
     
               SimpleTrigger trigger = (SimpleTrigger) newTrigger()
                       .withIdentity("trigger1", "group1")
                       .startAt(startTime)
                       .withSchedule(simpleSchedule()
                               .repeatForever()
                               .withIntervalInSeconds(1))
                       .build();
     
               // schedule it to run!
               Date ft = scheduler.scheduleJob(job, trigger);
                 
               System.out.println("当前时间是：" + new Date().toLocaleString());
               System.out.printf("%s 这个任务会在 %s 准时开始运行，累计运行%d次，间隔时间是%d毫秒%n", job.getKey(), ft.toLocaleString(), trigger.getRepeatCount()+1, trigger.getRepeatInterval());
                
               scheduler.start();
                  
               //等待200秒，让前面的任务都执行完了之后，再关闭调度器
               Thread.sleep(200000);
               scheduler.shutdown(true);
       }
   }