quartz2.3.0（二）触发器Trigger花式Scheduler调度job
任务类
1 package org.quartz.examples.example2; 2 3 import java.util.Date; 4 5 import org.slf4j.Logger; 6 import org.slf4j.LoggerFactory; 7 import org.quartz.Job; 8 import org.quartz.JobExecutionContext; 9 import org.quartz.JobExecutionException; 10 import org.quartz.JobKey; 11 12 /** 13 * 任务job 14 */ 15 public class SimpleJob implements Job { 16 17 private static Logger LOG = LoggerFactory.getLogger(SimpleJob.class); 18 19 // 必须要有public修饰的无参构造函数 20 public SimpleJob() { 21 } 22 23 // 任务执行方法 24 public void execute(JobExecutionContext context) throws JobExecutionException { 25 JobKey jobKey = context.getJobDetail().getKey(); //jobKey长这样：group1.job6 26 LOG.info("执行任务。SimpleJob says: " + jobKey + " executing at " + new Date()); 27 } 28 29 }
调度管理类
package org.quartz.examples.example2; import static org.quartz.DateBuilder.futureDate; import static org.quartz.JobBuilder.newJob; import static org.quartz.JobKey.jobKey; import static org.quartz.SimpleScheduleBuilder.simpleSchedule; import static org.quartz.TriggerBuilder.newTrigger; import org.quartz.DateBuilder; import org.quartz.DateBuilder.IntervalUnit; import org.quartz.JobDetail; import org.quartz.Scheduler; import org.quartz.SchedulerException; import org.quartz.SchedulerFactory; import org.quartz.SchedulerMetaData; import org.quartz.SimpleTrigger; import org.quartz.impl.StdSchedulerFactory; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.util.Date; /** * 这个例子表明，只要触发器运用的好，job任务可以被花式执行 */ public class SimpleTriggerExample { Logger LOG = LoggerFactory.getLogger(SimpleTriggerExample.class); public void run() throws Exception { // 初始化一个调度工厂，并实例化一个调度类 SchedulerFactory sf = new StdSchedulerFactory(); Scheduler scheduler = sf.getScheduler(); // 第一个参数：null就是默认当前时间，也可以指定时间 // 第二个参数：把一分钟按15进行划分，也就是60/15等份。 // 举例：当前时间是10:26:04，那么startTime就是10:26:15。当前时间是10:26:31，那么startTime就是10:26:45。 Date startTime = DateBuilder.nextGivenSecondDate(null, 15); // ======================================================== // ============ job1 任务绑定到group1 组中 ================== // ======================================================== JobDetail job = newJob(SimpleJob.class).withIdentity("job1", "group1").build(); // 实例化一个触发器，命名为trigger1，并绑定到一个名为group1的组中，Job类运行开始时间为runTime（下一分钟） SimpleTrigger trigger = (SimpleTrigger) newTrigger().withIdentity("trigger1", "group1").startAt(startTime) .build(); Date date = scheduler.scheduleJob(job, trigger); LOG.info(job.getKey() + " will run at: " + date + " and repeat: " + trigger.getRepeatCount() + " times, every " + trigger.getRepeatInterval() / 1000 + " seconds"); // ======================================================== // ============ job2 任务绑定到group1 组中 ================== // ======================================================== job = newJob(SimpleJob.class).withIdentity("job2", "group1").build(); trigger = (SimpleTrigger) newTrigger().withIdentity("trigger2", "group1").startAt(startTime).build(); date = scheduler.scheduleJob(job, trigger); LOG.info(job.getKey() + " will run at: " + date + " and repeat: " + trigger.getRepeatCount() + " times, every " + trigger.getRepeatInterval() / 1000 + " seconds"); // ==================================================================== // ============ job3 任务绑定到group1 组中，运行一次每间隔10秒重复1次，总共重复10次 // ==================================================================== job = newJob(SimpleJob.class).withIdentity("job3", "group1").build(); trigger = newTrigger().withIdentity("trigger3", "group1").startAt(startTime) .withSchedule(simpleSchedule().withIntervalInSeconds(10).withRepeatCount(10)).build(); date = scheduler.scheduleJob(job, trigger); LOG.info(job.getKey() + " will run at: " + date + " and repeat: " + trigger.getRepeatCount() + " times, every " + trigger.getRepeatInterval() / 1000 + " seconds"); // ==================================================================== // ============ job3 任务绑定到group2 组中，将被另一个触发器调度，这一次将以70秒的间隔重复两次 // ==================================================================== trigger = newTrigger().withIdentity("trigger3", "group2").startAt(startTime) .withSchedule(simpleSchedule().withIntervalInSeconds(10).withRepeatCount(2)).forJob(job).build(); date = scheduler.scheduleJob(trigger); LOG.info(job.getKey() + " will [also] run at: " + date + " and repeat: " + trigger.getRepeatCount() + " times, every " + trigger.getRepeatInterval() / 1000 + " seconds"); // ==================================================================== // ============ job4 将被执行6次，执行一次重复5次，每次间隔10秒 // ==================================================================== job = newJob(SimpleJob.class).withIdentity("job4", "group1").build(); trigger = newTrigger().withIdentity("trigger4", "group1").startAt(startTime) .withSchedule(simpleSchedule().withIntervalInSeconds(10).withRepeatCount(5)).build(); date = scheduler.scheduleJob(job, trigger); LOG.info(job.getKey() + " will run at: " + date + " and repeat: " + trigger.getRepeatCount() + " times, every " + trigger.getRepeatInterval() / 1000 + " seconds"); // ==================================================================== // ============ job5 将在5分钟后执行一次 // ==================================================================== job = newJob(SimpleJob.class).withIdentity("job5", "group1").build(); trigger = (SimpleTrigger) newTrigger().withIdentity("trigger5", "group1") .startAt(futureDate(5, IntervalUnit.MINUTE)).build(); date = scheduler.scheduleJob(job, trigger); LOG.info(job.getKey() + " will run at: " + date + " and repeat: " + trigger.getRepeatCount() + " times, every " + trigger.getRepeatInterval() / 1000 + " seconds"); // ==================================================================== // ============ job6 将被无限期地执行，每隔40秒执行一次 // ==================================================================== job = newJob(SimpleJob.class).withIdentity("job6", "group1").build(); trigger = newTrigger().withIdentity("trigger6", "group1").startAt(startTime) .withSchedule(simpleSchedule().withIntervalInSeconds(40).repeatForever()).build(); date = scheduler.scheduleJob(job, trigger); LOG.info(job.getKey() + " will run at: " + date + " and repeat: " + trigger.getRepeatCount() + " times, every " + trigger.getRepeatInterval() / 1000 + " seconds"); // ==================================================================== // ============ 启动调度器 // ==================================================================== scheduler.start(); // ==================================================================== // ============ 在调度器启动之后，新增加的job7仍将可以被调度，job7将5分钟执行一次，总共重复20次 // ==================================================================== job = newJob(SimpleJob.class).withIdentity("job7", "group1").build(); trigger = newTrigger().withIdentity("trigger7", "group1").startAt(startTime) .withSchedule(simpleSchedule().withIntervalInMinutes(5).withRepeatCount(20)).build(); date = scheduler.scheduleJob(job, trigger); LOG.info(job.getKey() + " will run at: " + date + " and repeat: " + trigger.getRepeatCount() + " times, every " + trigger.getRepeatInterval() / 1000 + " seconds"); // ==================================================================== // ============ job8绑定到group1，只有定义好触发器，才会被执行 // ==================================================================== job = newJob(SimpleJob.class).withIdentity("job8", "group1").storeDurably().build(); scheduler.addJob(job, true); // job添加到任务调度器 scheduler.triggerJob(jobKey("job8", "group1")); // 手动触发job8，绑定到group1 try { Thread.sleep(30L * 1000L); // 等待30秒，让任务都执行完毕 } catch (Exception e) { } /** * 终止调度。 * 但是如果当前仍然有任务正在运行中，则会等待该任务执行完毕再终止，期间debug信息会打印： * 21:48:54.965 [main] DEBUG org.quartz.simpl.SimpleThreadPool - Waiting for thread TestScheduler_Worker-1 to shut down */ scheduler.shutdown(true); // 显示调度器的一些统计信息 SchedulerMetaData metaData = scheduler.getMetaData(); LOG.info("Executed " + metaData.getNumberOfJobsExecuted() + " jobs."); } // 演示触发器被重新调度案例 private void rescheduleJobDemo() throws SchedulerException { // 初始化一个调度工厂，并实例化一个调度类 SchedulerFactory sf = new StdSchedulerFactory(); Scheduler scheduler = sf.getScheduler(); // 第一个参数：null就是默认当前时间，也可以指定时间 // 第二个参数：把一分钟按30进行划分，也就是60/30等份。 // 举例：当前时间是21:01:27，那么startTime就是21:01:30。当前时间是21:01:32，那么startTime就是21:02:00。 Date startTime = DateBuilder.nextGivenSecondDate(null, 15); // ==================================================================== // ============ job600 将被无限期地执行，每隔5秒执行一次，由trigger2019触发 // ==================================================================== JobDetail job = newJob(SimpleJob.class).withIdentity("job600", "group1").build(); SimpleTrigger trigger = newTrigger().withIdentity("trigger2019", "group1").startAt(startTime) .withSchedule(simpleSchedule().withIntervalInSeconds(5).repeatForever()).build(); Date date = scheduler.scheduleJob(job, trigger); LOG.info(job.getKey() + " will run at: " + date + " and repeat: " + trigger.getRepeatCount() + " times, every " + trigger.getRepeatInterval() / 1000 + " seconds"); // ==================================================================== // ============ 启动调度器 // ==================================================================== scheduler.start(); try { System.out.println("线程进入睡眠"); Thread.sleep(10000); } catch (InterruptedException e) { e.printStackTrace(); } System.out.println("线程被唤醒"); // ==================================================================== // ============ job600 被重新定义的trigger2019触发器重新调度，改为每1秒钟执行一次 // ==================================================================== SimpleTrigger trigger2 = newTrigger().withIdentity("trigger2019", "group1").startAt(startTime) .withSchedule(simpleSchedule().withIntervalInSeconds(1).repeatForever()).build(); Date date2 = scheduler.rescheduleJob(trigger2.getKey(), trigger2); LOG.info("job600 rescheduled to run at: " + date2); } public static void main(String[] args) throws Exception { SimpleTriggerExample example = new SimpleTriggerExample(); example.run(); example.rescheduleJobDemo(); // 重新调度案例 } }
