SpringBoot任务调度器的实现代码

package bj.scheduler;import lombok.extern.slf4j.Slf4j;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;import org.springframework.scheduling.annotation.EnableScheduling;import org.springframework.scheduling.annotation.Scheduled;import org.springframework.scheduling.annotation.Schedules;import java.time.LocalDateTime;/** * Created by BaiJiFeiLong@gmail.com at 2018/12/12 下午2:51 */@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)@EnableScheduling@Slf4jpublic class SchedulerApp {  public static void main(String[] args) throws InterruptedException {    SpringApplication.run(SchedulerApp.class, args);    Thread.currentThread().join();  }  @Schedules({      @Scheduled(fixedRate = 1000),      @Scheduled(fixedDelay = 1001),      @Scheduled(cron = "* * * * * *")  })  public void sayHello() {    log.info("{} Hello", LocalDateTime.now());  }}

 .  ____     _      __ _ _ /// / ___'_ __ _ _(_)_ __ __ _ / / / /( ( )/___ | '_ | '_| | '_ // _` | / / / / /// ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_/__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot ::    (v2.1.0.RELEASE)2018-12-12 15:01:00.332 INFO 34660 --- [      main] bj.scheduler.SchedulerApp        : Starting SchedulerApp on MacBook-Air-2.local with PID 34660 (/Users/yuchao/temp/java/hellomaven/target/classes started by yuchao in /Users/yuchao/temp/java/hellomaven)2018-12-12 15:01:00.339 INFO 34660 --- [      main] bj.scheduler.SchedulerApp        : No active profile set, falling back to default profiles: default2018-12-12 15:01:02.395 INFO 34660 --- [      main] o.s.s.c.ThreadPoolTaskScheduler     : Initializing ExecutorService 'taskScheduler'2018-12-12 15:01:02.496 WARN 34660 --- [      main] reactor.netty.tcp.TcpResources      : [http] resources will use the default LoopResources: DefaultLoopResources {prefix=reactor-http, daemon=true, selectCount=4, workerCount=4}2018-12-12 15:01:02.498 WARN 34660 --- [      main] reactor.netty.tcp.TcpResources      : [http] resources will use the default ConnectionProvider: PooledConnectionProvider {name=http, poolFactory=reactor.netty.resources.ConnectionProvider$$Lambda$278/687399269@6594402a}2018-12-12 15:01:02.707 INFO 34660 --- [  scheduling-1] bj.scheduler.SchedulerApp        : 2018-12-12T15:01:02.707 Hello2018-12-12 15:01:02.707 INFO 34660 --- [  scheduling-1] bj.scheduler.SchedulerApp        : 2018-12-12T15:01:02.707 Hello2018-12-12 15:01:02.708 INFO 34660 --- [      main] bj.scheduler.SchedulerApp        : Started SchedulerApp in 3.257 seconds (JVM running for 4.997)2018-12-12 15:01:03.004 INFO 34660 --- [  scheduling-1] bj.scheduler.SchedulerApp        : 2018-12-12T15:01:03.004 Hello2018-12-12 15:01:03.704 INFO 34660 --- [  scheduling-1] bj.scheduler.SchedulerApp        : 2018-12-12T15:01:03.704 Hello2018-12-12 15:01:03.710 INFO 34660 --- [  scheduling-1] bj.scheduler.SchedulerApp        : 2018-12-12T15:01:03.710 Hello2018-12-12 15:01:04.002 INFO 34660 --- [  scheduling-1] bj.scheduler.SchedulerApp        : 2018-12-12T15:01:04.002 Hello2018-12-12 15:01:04.702 INFO 34660 --- [  scheduling-1] bj.scheduler.SchedulerApp        : 2018-12-12T15:01:04.702 Hello2018-12-12 15:01:04.712 INFO 34660 --- [  scheduling-1] bj.scheduler.SchedulerApp        : 2018-12-12T15:01:04.712 Hello2018-12-12 15:01:05.000 INFO 34660 --- [  scheduling-1] bj.scheduler.SchedulerApp        : 2018-12-12T15:01:05 Hello2018-12-12 15:01:05.700 INFO 34660 --- [  scheduling-1] bj.scheduler.SchedulerApp        : 2018-12-12T15:01:05.700 Hello2018-12-12 15:01:05.716 INFO 34660 --- [  scheduling-1] bj.scheduler.SchedulerApp        : 2018-12-12T15:01:05.716 Hello