SpringBoot集成Quartz实现定时器

SpringBoot+Quartz实现定时器，


1.pom配置

<dependency>      <groupId>org.springframework</groupId>     <artifactId>spring-context-support</artifactId>  </dependency> <dependency>      <groupId>org.springframework</groupId>     <artifactId>spring-tx</artifactId>  </dependency> <dependency>      <groupId>org.quartz-scheduler</groupId>     <artifactId>quartz</artifactId>     <version>2.2.1</version> </dependency> 

　　

2.注册[pring-boot启动完成事件监听，用于启动job任务

@Configuration public class SchedulerListener implements ApplicationListener<ContextRefreshedEvent> {      @Autowired     public MyScheduler myScheduler;     @Override     public void onApplicationEvent(ContextRefreshedEvent event) {          try {              myScheduler.scheduleJobs();          } catch (SchedulerException e) {              e.printStackTrace();          }      }      @Bean     public SchedulerFactoryBean schedulerFactoryBean(){         SchedulerFactoryBean schedulerFactoryBean = new SchedulerFactoryBean();          return schedulerFactoryBean;      } } 

　　

3、job参数设置

@Component public class MyScheduler {     @Autowired     SchedulerFactoryBean schedulerFactoryBean;     public void scheduleJobs() throws SchedulerException {         Scheduler scheduler = schedulerFactoryBean.getScheduler();         startJob1(scheduler);          startJob2(scheduler);      }     private void startJob1(Scheduler scheduler) throws SchedulerException{         JobDetail jobDetail = JobBuilder.newJob(ScheduledJob.class) .withIdentity("job1", "group1").build();          CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule("0/5 * * * * ?");          CronTrigger cronTrigger = TriggerBuilder.newTrigger().withIdentity("trigger1", "group1") .withSchedule(scheduleBuilder).build();          scheduler.scheduleJob(jobDetail,cronTrigger);      }      private void startJob2(Scheduler scheduler) throws SchedulerException{          JobDetail jobDetail = JobBuilder.newJob(ScheduledJob2.class) .withIdentity("job2", "group1").build();         CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule("0/10 * * * * ?");          CronTrigger cronTrigger = TriggerBuilder.newTrigger().withIdentity("trigger2", "group1") .withSchedule(scheduleBuilder).build();          scheduler.scheduleJob(jobDetail,cronTrigger);     } } 

　　

4.实现各个任务job

public class ScheduledJob implements Job{      private SimpleDateFormat dateFormat() {         return new SimpleDateFormat("HH:mm:ss");     }      @Override     public void execute(JobExecutionContext context) throws JobExecutionException {          System.out.println("AAAA: The time is now " + dateFormat().format(new Date()));      } }

这样会导致一个问题，就是执行定时器的时候 ，service不能注入 ！ 解决方法: 通过外部来创建serivce ，然后在定时器里调用 

　创建ApplicationContextUtil工具类

/**  * 定时器service注入工具类  */ @Component public class ApplicationContextUtil implements ApplicationContextAware{      private static ApplicationContext applicationContext;      public static ApplicationContext getApplicationContext() {         return applicationContext;     }       public  void setApplicationContext(ApplicationContext applicationContext) {         ApplicationContextUtil.applicationContext = applicationContext;     }      public static Object getBean(String BeanName){         return applicationContext.getBean(BeanName);     } }   2. 在定时器里调用工具类来创建service 

   BankService bankService=(BankService) ApplicationContextUtil.getBean("BankService");    Double money=bankService.getBalance("62279205947481841");     这样就完美的解决了service注入空指针异常的问题  

文章来源: SpringBoot集成Quartz实现定时器