spring boot 定时任务

/**
 * Created by Admin on 2016/4/28.
 */
@Service("flowService")
@Component
public class FlowServiceImpl implements FlowService{


    protected Logger log = LoggerFactory.getLogger(getClass());

    @Autowired
    private FlowCountRepository flowCountRepository;

    @Autowired
    private ScopConfig scopConfig;

    @Override
    @Scheduled(cron = "${scop.exportTime}")
    public  void export1(){
        /**
         * 如果没有文件夹，则创建
         */
        SimpleDateFormat fm=new SimpleDateFormat("yyyyMMddHHmmss");
        String urlName=scopConfig.getFlowCount();
        log.debug("导出文件存放的路劲为"+urlName);
        File file = new File(urlName);
        if (!file.exists()) {
            file.mkdir();
        }

application.properties 中
#流量统计定时导出时间 每天12点04执行导出
scop.exportTime=0 04 12 ? * *

如果你的项目中，统一时间点有多个定时任务要执行，那么就可能出现一个任务执行时间过长占用线程资源，导致其他任务无法执行。需要加如下的类：

/**
 * Created by zhiqi.shao on 2017/12/7.
 */
@Slf4j
@Configuration
@EnableConfigurationProperties
@AutoConfigureAfter
public class TaskConfig  implements SchedulingConfigurer {


    @Override
    public void configureTasks(ScheduledTaskRegistrar scheduledTaskRegistrar) {

    }

    @Bean(destroyMethod = "shutdown")
    public ThreadPoolTaskScheduler taskExecutor() {
        ThreadPoolTaskScheduler scheduler = new ThreadPoolTaskScheduler();
        scheduler.setPoolSize(4);
        scheduler.initialize();
        return scheduler;
    }
}