SpringBoot集成Quartz实现定时器

SpringBoot+Quartz实现定时器，
由于本人也是刚学习，不足之处请各位大神指正 .. 

1.pom配置

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   <dependency>
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   <groupId>org.springframework</groupId>
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   <artifactId>spring-context-support</artifactId>
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   </dependency>
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   <dependency>
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   <groupId>org.springframework</groupId>
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   <artifactId>spring-tx</artifactId>
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   </dependency>
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   <dependency>
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    <groupId>org.quartz-scheduler</groupId>
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    <artifactId>quartz</artifactId>
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    <version>2.2.1</version>
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    </dependency>
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2.注册[pring-boot启动完成事件监听，用于启动job任务

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

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

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   public class ScheduledJob implements Job{
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   private SimpleDateFormat dateFormat() {
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   return new SimpleDateFormat("HH:mm:ss");
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   }
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   @Override
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   public void execute(JobExecutionContext context) throws JobExecutionException {
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   System.out.println("AAAA: The time is now " + dateFormat().format(new Date()));
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   }
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   }
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11.  
    这样会导致一个问题，就是执行定时器的时候 ，service不能注入 ！
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    解决方法: 通过外部来创建serivce ，然后在定时器里调用
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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 
转自：https://blog.csdn.net/dreamer_ax/article/details/72282392