如何使用 Spring Boot AutoWired 和 ScheduledExecutorService？

Question

I need to use autowired in more than one class with ScheduledExecutorService, what I have tried is shown in this code. logging size of User list in below example always shows 0, even after user added to arraylist. How to properly use Autowired and ScheduledExecutorService in spring boot?

@Component
public class AnotherClass {
    List<User> users = new ArrayList();

    public void addUser(User user){
        users.add(user);
    }

    public void logUsers(){
        logger.info("User size " + users.size());  <================= Always logs 0, when called from executor
    }

}

@RestController
public class SecondClass {

    @Autowired
    private AnotherClass anotherClass; 

    @GetMapping(value="/user/test")
    public void logUsers(){
        anotherClass.addUser(new User());
    }
}

Application Class

@Component
@SpringBootApplication
public class SpringBootDemoApplication {

    private ScheduledExecutorService exec = Executors.newScheduledThreadPool(1);

    @Autowired
    private AnotherClass anotherClass; 

    @PostConstruct
    public void init() {
        logger();
    }

    public static void main(String[] args) {
        SpringApplication.run(SpringBootDemoApplication.class, args);
    }

    public void logger(){
        exec.scheduleAtFixedRate(new Runnable(){
            @Override
            public void run(){
                try {
                    anotherClass.logUsers();
                }catch (Exception e){
                }
            }
        }, 2000, 1000, TimeUnit.MILLISECONDS);
    }
}

Answer 1

如果您使用Spring @Autowired而不是@AutoWired Annotation，则代码有效。