Does spring @Scheduled annotated methods runs on different threads?

Question

I have several methods annotated with @Scheduled(fixedDelay=10000).

In the application context, I have this annotation-driven setup:

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Answer 1

default spring using a single thread for schedule task. you can using @Configuration for class implements SchedulingConfigurer . referce: https://crmepham.github.io/spring-boot-multi-thread-scheduling/

Answer 2

The @EnableScheduling annotation provides the key information and how to resolve it:

By default, will be searching for an associated scheduler definition: either a unique TaskScheduler bean in the context, or a TaskScheduler bean named "taskScheduler" otherwise; the same lookup will also be performed for a ScheduledExecutorService bean. If neither of the two is resolvable, a local single-threaded default scheduler will be created and used within the registrar.

When more control is desired, a @Configuration class may implement SchedulingConfigurer. This allows access to the underlying ScheduledTaskRegistrar instance. For example, the following example demonstrates how to customize the Executor used to execute scheduled tasks:

 @Configuration
 @EnableScheduling
 public class AppConfig implements SchedulingConfigurer {

     @Override
     public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
         taskRegistrar.setScheduler(taskExecutor());
     }

     @Bean(destroyMethod="shutdown")
     public Executor taskExecutor() {
         return Executors.newScheduledThreadPool(100);
     }
 }

(emphasis added)