Java @StreamListener在Spring启动的主应用程序类之外时不可见。原因可能是什么？

这是Spring云流应用程序。正如我在标题中提到的，

StreamListener

注释在springbootcapplication主类中工作，但当它位于带有

@组件的另一个类中时就不工作了

我认为这是某种
StreamListener
可见性问题

我正在从RabbitMQ管理界面发布消息

以下是我得到的例外情况：

ERROR 10676 --- [Service-Group-1] o.s.integration.handler.LoggingHandler   : org.springframework.messaging.MessageDeliveryException: Dispatcher has no subscribers for channel 'Consumer-Slide.slideInputStream'.; nested exception is org.springframework.integration.MessageDispatchingException: Dispatcher has no subscribers

ConsumerApplication.java

@SpringBootApplication
@EnableBinding(SlideChannel.class)
public class ConsumerApplication {
    
    public static void main(String[] args) {
        SpringApplication.run(ConsumerApplication.class, args);
        
    }
}

public interface SlideChannel {
    String slideInputStream = "slideInputStream";
    
    @Input(SlideChannel.slideInputStream)
    SubscribableChannel slideInput();
}

@Component
public class SlideListener {
    
    @Autowired
    private SlideChannel slideCh;
    
    
    @Autowired
    private SlideService slideService;
    
    @StreamListener(target=SlideChannel.slideInputStream)
    public void getSingleSlideDetails(Message<?> messageId) {
            System.out.println("Message consumed");
        
    }
}

SlideChannel.java

@SpringBootApplication
@EnableBinding(SlideChannel.class)
public class ConsumerApplication {
    
    public static void main(String[] args) {
        SpringApplication.run(ConsumerApplication.class, args);
        
    }
}

public interface SlideChannel {
    String slideInputStream = "slideInputStream";
    
    @Input(SlideChannel.slideInputStream)
    SubscribableChannel slideInput();
}

@Component
public class SlideListener {
    
    @Autowired
    private SlideChannel slideCh;
    
    
    @Autowired
    private SlideService slideService;
    
    @StreamListener(target=SlideChannel.slideInputStream)
    public void getSingleSlideDetails(Message<?> messageId) {
            System.out.println("Message consumed");
        
    }
}

SlideListener.java

@SpringBootApplication
@EnableBinding(SlideChannel.class)
public class ConsumerApplication {
    
    public static void main(String[] args) {
        SpringApplication.run(ConsumerApplication.class, args);
        
    }
}

public interface SlideChannel {
    String slideInputStream = "slideInputStream";
    
    @Input(SlideChannel.slideInputStream)
    SubscribableChannel slideInput();
}

@Component
public class SlideListener {
    
    @Autowired
    private SlideChannel slideCh;
    
    
    @Autowired
    private SlideService slideService;
    
    @StreamListener(target=SlideChannel.slideInputStream)
    public void getSingleSlideDetails(Message<?> messageId) {
            System.out.println("Message consumed");
        
    }
}

我可以回答自己的问题，因为应用程序按预期工作

解决方案：将应用程序文件保存在父包中，以便它可以扫描子模块（据我所知）