SpringBoot整合Quartz定時任務
阿新 • • 發佈:2019-01-12
1.簡單的controller進行呼叫測試。
@RestController @RequestMapping("/quartz") public class QuartzApiController { @Autowired private QuartzScheduler quartzScheduler; @RequestMapping("/start") public void startQuartzJob() { try { quartzScheduler.startJob(); } catch (SchedulerException e) { e.printStackTrace(); } } @RequestMapping("/info") public String getQuartzJob(String name, String group) { String info = null; try { info = quartzScheduler.getJobInfo(name, group); } catch (SchedulerException e) { e.printStackTrace(); } return info; } @RequestMapping("/modify") public boolean modifyQuartzJob(String name, String group, String time) { boolean flag = true; try { flag = quartzScheduler.modifyJob(name, group, time); } catch (SchedulerException e) { e.printStackTrace(); } return flag; } @RequestMapping(value = "/pause") public void pauseQuartzJob(String name, String group) { try { quartzScheduler.pauseJob(name, group); } catch (SchedulerException e) { e.printStackTrace(); } } @RequestMapping(value = "/pauseAll") public void pauseAllQuartzJob() { try { quartzScheduler.pauseAllJob(); } catch (SchedulerException e) { e.printStackTrace(); } } @RequestMapping(value = "/delete") public void deleteJob(String name, String group) { try { quartzScheduler.deleteJob(name, group); } catch (SchedulerException e) { e.printStackTrace(); } } }
2.處理任務的service。
@Configuration // 配置 public class QuartzScheduler { // 任務排程 @Autowired private Scheduler scheduler; /** * 開始執行所有任務 * * @throws SchedulerException */ public void startJob() throws SchedulerException { startJob1(scheduler); scheduler.start(); } /** * 開始某個任務 * @throws SchedulerException */ private void startJob1(Scheduler scheduler) throws SchedulerException { // 通過JobBuilder構建JobDetail例項,JobDetail規定只能是實現Job介面的例項 // JobDetail 是具體Job例項 JobDetail jobDetail = JobBuilder.newJob(SchedulerQuartzJob1.class).withIdentity("job1", "group1").build(); // 基於表示式構建觸發器 CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule("0/5 * * * * ?"); // CronTrigger表示式觸發器 繼承於Trigger // TriggerBuilder 用於構建觸發器例項 CronTrigger cronTrigger = TriggerBuilder.newTrigger().withIdentity("job1", "group1") .withSchedule(cronScheduleBuilder).build(); scheduler.scheduleJob(jobDetail, cronTrigger); } /** * 獲取Job資訊 * @param name * @param group * @return * @throws SchedulerException */ public String getJobInfo(String name, String group) throws SchedulerException { TriggerKey triggerKey = new TriggerKey(name, group); CronTrigger cronTrigger = (CronTrigger) scheduler.getTrigger(triggerKey); return String.format("time:%s,state:%s", cronTrigger.getCronExpression(), scheduler.getTriggerState(triggerKey).name()); } /** * 修改某個任務的執行時間 * @param name * @param group * @param time * @return * @throws SchedulerException */ public boolean modifyJob(String name, String group, String time) throws SchedulerException { Date date = null; TriggerKey triggerKey = new TriggerKey(name, group); CronTrigger cronTrigger = (CronTrigger) scheduler.getTrigger(triggerKey); String oldTime = cronTrigger.getCronExpression(); if (!oldTime.equalsIgnoreCase(time)) { CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(time); CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(name, group) .withSchedule(cronScheduleBuilder).build(); date = scheduler.rescheduleJob(triggerKey, trigger); } return date != null; } /** * 暫停所有任務 * * @throws SchedulerException */ public void pauseAllJob() throws SchedulerException { scheduler.pauseAll(); } /** * 暫停某個任務 * * @param name * @param group * @throws SchedulerException */ public void pauseJob(String name, String group) throws SchedulerException { JobKey jobKey = new JobKey(name, group); JobDetail jobDetail = scheduler.getJobDetail(jobKey); if (jobDetail == null) return; scheduler.pauseJob(jobKey); } /** * 恢復所有任務 * * @throws SchedulerException */ public void resumeAllJob() throws SchedulerException { scheduler.resumeAll(); } /** * 恢復某個任務 * * @param name * @param group * @throws SchedulerException */ public void resumeJob(String name, String group) throws SchedulerException { JobKey jobKey = new JobKey(name, group); JobDetail jobDetail = scheduler.getJobDetail(jobKey); if (jobDetail == null) return; scheduler.resumeJob(jobKey); } /** * 刪除某個任務 * * @param name * @param group * @throws SchedulerException */ public void deleteJob(String name, String group) throws SchedulerException { JobKey jobKey = new JobKey(name, group); JobDetail jobDetail = scheduler.getJobDetail(jobKey); if (jobDetail == null) return; scheduler.deleteJob(jobKey); } }
3.定義任務。
public class SchedulerQuartzJob1 implements Job{ private void before(){ System.out.println("任務開始執行"); } @Override public void execute(JobExecutionContext arg0) throws JobExecutionException { before(); System.out.println("開始:"+System.currentTimeMillis()); // TODO 業務 System.out.println("結束:"+System.currentTimeMillis()); after(); } private void after(){ System.out.println("任務一次執行結束"); } }
4.監聽器載入注入定時器。
@Configuration
public class ApplicationStartQuartzJobListener implements ApplicationListener<ContextRefreshedEvent>{
@Autowired
private QuartzScheduler quartzScheduler;
/**
* 初始啟動quartz
*/
@Override
public void onApplicationEvent(ContextRefreshedEvent event) {
try {
quartzScheduler.startJob();
System.out.println("任務已經啟動...");
} catch (SchedulerException e) {
e.printStackTrace();
}
}
/**
* 初始注入scheduler
* @return
* @throws SchedulerException
*/
@Bean
public Scheduler scheduler() throws SchedulerException{
SchedulerFactory schedulerFactoryBean = new StdSchedulerFactory();
return schedulerFactoryBean.getScheduler();
}
}
5.pom.xml中需要加入的依賴。
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>2.2.1</version>
</dependency>