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

          
      
       org.springframework
          
      
       spring-context-support
       
     
          
      
       org.springframework
          
      
       spring-tx
       
     
          
      
       org.quartz-scheduler
          
      
       quartz
          
      
       2.2.1
      
     

　　

2.注册[pring-boot启动完成事件监听，用于启动job任务

 

@Configurationpublic class SchedulerListener implements ApplicationListener
     
       {     @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

 

@Componentpublic 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 */@Componentpublic 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

 本文转载 https://blog.csdn.net/Dreamer_ax/article/details/72282392