SpringBoot 如何实现并发定时任务？

@Configuration
  public class ScheduledConfig implements SchedulingConfigurer {

    @Autowired
      private TaskScheduler myThreadPoolTaskScheduler;
  
      @Override
      public void configureTasks(ScheduledTaskRegistrar scheduledTaskRegistrar) {
          //简单粗暴的方式直接指定
      //scheduledTaskRegistrar.setScheduler(Executors.newScheduledThreadPool(5));
          //也可以自定义的线程池，方便线程的使用与维护，这里不多说了
      scheduledTaskRegistrar.setTaskScheduler(myThreadPoolTaskScheduler);
      }
  }

  @Bean(name = "myThreadPoolTaskScheduler")
  public TaskScheduler getMyThreadPoolTaskScheduler() {
      ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
      taskScheduler.setPoolSize(10);
      taskScheduler.setThreadNamePrefix("Haina-Scheduled-");
      taskScheduler.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
      //调度器shutdown被调用时等待当前被调度的任务完成
      taskScheduler.setWaitForTasksToCompleteOnShutdown(true);
      //等待时长
      taskScheduler.setAwaitTerminationSeconds(60);
      return taskScheduler;
  }

@Scheduled(fixedRate = 1000*10,initialDelay = 1000*20)
  @Async("myThreadPoolTaskExecutor")
  //@Async
  public void scheduledTest02(){
      System.out.println(Thread.currentThread().getName()+"--->xxxxx--->"+Thread.currentThread().getId());
  }

  //自定义线程池
  @Bean(name = "myThreadPoolTaskExecutor")
  public TaskExecutor getMyThreadPoolTaskExecutor() {
      ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
      taskExecutor.setCorePoolSize(20);
      taskExecutor.setMaxPoolSize(200);
      taskExecutor.setQueueCapacity(25);
      taskExecutor.setKeepAliveSeconds(200);
      taskExecutor.setThreadNamePrefix("Haina-ThreadPool-");
      // 线程池对拒绝任务（无线程可用）的处理策略，目前只支持AbortPolicy、CallerRunsPolicy；默认为后者
      taskExecutor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
      //调度器shutdown被调用时等待当前被调度的任务完成
      taskExecutor.setWaitForTasksToCompleteOnShutdown(true);
      //等待时长
      taskExecutor.setAwaitTerminationSeconds(60);
      taskExecutor.initialize();
      return taskExecutor;
  }

@Configuration
  public class ScheduledConfig implements SchedulingConfigurer {

  @Autowired
  private TaskScheduler myThreadPoolTaskScheduler;

  @Override
  public void configureTasks(ScheduledTaskRegistrar scheduledTaskRegistrar) {
      //scheduledTaskRegistrar.setScheduler(Executors.newScheduledThreadPool(5));
      scheduledTaskRegistrar.setTaskScheduler(myThreadPoolTaskScheduler);
      //可以实现动态调整定时任务的执行频率
    scheduledTaskRegistrar.addTriggerTask(
              //1.添加任务内容(Runnable)
              () -> System.out.println("cccccccccccccccc--->" + Thread.currentThread().getId()),
              //2.设置执行周期(Trigger)
              triggerContext -> {
                  //2.1 从数据库动态获取执行周期
                  String cron = "0/2 * * * * ? ";
                  //2.2 合法性校验.
  // if (StringUtils.isEmpty(cron)) {
  // // Omitted Code ..
  // }
                      //2.3 返回执行周期(Date)
                      return new CronTrigger(cron).nextExecutionTime(triggerContext);
                  }
          );
  }
  }

@Component
  public class DynamicTimedTask {
  
      private static final Logger logger = LoggerFactory.getLogger(DynamicTimedTask.class);
  
      //利用创建好的调度类统一管理
      //@Autowired
      //@Qualifier("myThreadPoolTaskScheduler")
      //private ThreadPoolTaskScheduler myThreadPoolTaskScheduler;
  
  
      //接受任务的返回结果
      private ScheduledFuture future;
  
      @Autowired
      private ThreadPoolTaskScheduler threadPoolTaskScheduler;
      
    //实例化一个线程池任务调度类,可以使用自定义的ThreadPoolTaskScheduler
      @Bean
      public ThreadPoolTaskScheduler threadPoolTaskScheduler() {
          ThreadPoolTaskScheduler executor = new ThreadPoolTaskScheduler();
          return new ThreadPoolTaskScheduler();
      }
  
  
      /**
       * 启动定时任务
       * @return
       */
      public boolean startCron() {
          boolean flag = false;
      //从数据库动态获取执行周期
          String cron = "0/2 * * * * ? ";
          future = threadPoolTaskScheduler.schedule(new CheckModelFile(),cron);
          if (future!=null){
              flag = true;
              logger.info("定时check训练模型文件,任务启动成功！！！");
          }else {
              logger.info("定时check训练模型文件,任务启动失败！！！");
          }
          return flag;
      }
  
      /**
       * 停止定时任务
       * @return
       */
      public boolean stopCron() {
          boolean flag = false;
          if (future != null) {
              boolean cancel = future.cancel(true);
              if (cancel){
                  flag = true;
                  logger.info("定时check训练模型文件,任务停止成功！！！");
              }else {
                  logger.info("定时check训练模型文件,任务停止失败！！！");
              }
          }else {
              flag = true;
              logger.info("定时check训练模型文件，任务已经停止！！！");
          }
          return flag;
      }
  
  
      class CheckModelFile implements Runnable{
  
          @Override
          public void run() {
        //编写你自己的业务逻辑
        System.out.print("模型文件检查完毕！！！")
          }
      }

  }