sprint boot 多线程

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@Configuration
@ComponentScan("ch3.taskexecutor")
@EnableAsync
public class TaskExecutorConfig implements AsyncConfigurer {
    @Override
    public Executor getAsyncExecutor() {
        ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
        taskExecutor.setCorePoolSize(5);
        taskExecutor.setMaxPoolSize(10);
        taskExecutor.setQueueCapacity(25);
        taskExecutor.initialize();
        return taskExecutor;
    }

    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        return null;
    }
}

@Service
public class AsyncTaskService {
    @Async
    public void executeAsyncTask(Integer i) {
        System.out.println("执行异步任务: " + i);
    }

    @Async
    public void executeAsyncTaskPlus(Integer i) {
        System.out.println("执行异步任务+1: " + (i + 1));
    }
}

public class Main {
    public static void main(String[] args) {
        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(TaskExecutorConfig.class);

        AsyncTaskService asyncTaskService = context.getBean(AsyncTaskService.class);

        for (int i = 0; i < 10; i++) {
            asyncTaskService.executeAsyncTask(i);
            asyncTaskService.executeAsyncTaskPlus(i);
        }

        context.close();
    }
}