Using @Scheduled and @EnableScheduling but gives NoSuchBeanDefinitionException

Question

I have followed very simple examples online to set up a cron job in Spring yet I keep getting this error in my Tomcat startup log each and every time:

2015-05         


        

Answer 1

With Spring Boot 2.0.5, I keep getting:

2018-11-20 11:35:48.046  INFO 64418 --- [  restartedMain] s.a.ScheduledAnnotationBeanPostProcessor : 
No TaskScheduler/ScheduledExecutorService bean found for scheduled processing

The only way to get rid of it seems to be using SchedulingConfigurer interface in your @Configuration class like this:

@Configuration
public class SchedulerConfig implements SchedulingConfigurer {
    private final int POOL_SIZE = 10;

    @Override
    public void configureTasks(ScheduledTaskRegistrar scheduledTaskRegistrar) {
        ThreadPoolTaskScheduler threadPoolTaskScheduler = new ThreadPoolTaskScheduler();

        threadPoolTaskScheduler.setPoolSize(POOL_SIZE);
        threadPoolTaskScheduler.setThreadNamePrefix("my-scheduled-task-pool-");
        threadPoolTaskScheduler.initialize();

        scheduledTaskRegistrar.setTaskScheduler(threadPoolTaskScheduler);
    }
}

Note: This was taken from https://www.callicoder.com/spring-boot-task-scheduling-with-scheduled-annotation/