spring管理quartz生命周期之SchedulerFactoryBean

spring通过SchedulerFactoryBean来管理quartz的生命周期。在spring容器启动时启动调度器，在spring容器关闭时停止调度器

FactoryBeanthat creates and configures a Quartz {@link org.quartz.Scheduler},manages its lifecycle as part of the Spring application context, and exposes the Scheduler as bean reference for dependency injection.

为了防止启动失败，我们可以通过实现ApplicationListener接口来手动判断定时任务调试器是否启动，若没有启动，可以再次启动:

@Component("quartzStarterListener")public class QuartzStarterListener implements ApplicationListener {        private static final Logger LOGGER = LoggerFactory.getLogger(QuartzStarterListener.class);    private boolean started = false;    @Autowired    private Scheduler scheduler;    @Override    public void onApplicationEvent(ApplicationEvent event) {        if (event instanceof ContextRefreshedEvent){            LOGGER.info("trying to refresh.>>>>>>>>>");            try {                if (!started && !scheduler.isStarted()){                    started = true;                    LOGGER.info("trying to start quartz.>>>>>>>>");                    scheduler.start();                    LOGGER.info("quartz has been started.>>>>>>>>");                }            } catch (SchedulerException e) {                LOGGER.error("error occurred when starting quartz.>>>>>>>>", e);                e.printStackTrace();            }        }else if (event instanceof ContextClosedEvent ||                event instanceof ContextStoppedEvent){            try {                if (scheduler.isStarted()){                    //等待所有定时任务执行完毕才停止                    scheduler.shutdown(true);                    LOGGER.info("quartz has been stopped.>>>>>>");                }            } catch (SchedulerException e) {                LOGGER.error("error occurred when stopping quartz.>>>>>>>", e);                e.printStackTrace();            }        }    }}

结果:

[2018-08-16 10:47:03.924] [ INFO] QuartzStarterListener trying to refresh.>>>>>>>>>16-Aug-2018 10:47:03.929 信息 [RMI TCP Connection(5)-127.0.0.1] org.springframework.web.servlet.DispatcherServlet.initServletBeanFrameworkServlet 'springDispatcherServlet': initialization completed in 1947 ms[2018-08-16 10:47:03,963] Artifact ssm:war exploded: Artifact is deployed successfully[2018-08-16 10:47:03,963] Artifact ssm:war exploded: Deploy took 12,434 milliseconds...[2018-08-16 10:47:06.506] [ INFO] QuartzScheduler Scheduler scheduler_$_NON_CLUSTERED shutdown complete.[2018-08-16 10:47:06.506] [ INFO] QuartzStarterListener quartz has been stopped.>>>>>>[2018-08-16 10:47:06.518] [ INFO] QuartzStarterListener quartz has been stopped.>>>>>>