SpringbootプロジェクトのAutowired注記はサービスに注入できません.注入はnullソリューションとして表示されます.

/**
 * app      
 * created by king on 2020/6/18 6:09   
 */
@Slf4j
@Service
public class AppSendMsgServiceImpl implements ISendMsgService {
    //       app         ，     ，             ~
    @Autowired
    private NoticeInfoServiceImpl noticeInfoService;

    @Override
    public boolean sendMsg(Object object) {
        
        return noticeInfoService.send((NoticeRequest) object);
    }
}

/**
 * app      
 * created by king on 2020/6/18 6:09   
 */
@Slf4j
@Component
public class AppSendMsgServiceImpl implements ISendMsgService {
    //       app         ，     ，             ~
    @Autowired
    private NoticeInfoServiceImpl noticeInfoService;
    
    private static AppSendMsgServiceImpl appSendMsgService;
    
    @PostConstruct //  @PostConstruct     bean       
    public void init() {
        appSendMsgService = this;
        appSendMsgService.noticeInfoService = this.noticeInfoService;
        //           testService   
    }

    @Override
    public boolean sendMsg(Object object) {
//           app       ，     ，             ~
       return appSendMsgService.noticeInfoService.send((NoticeRequest)object);
        
    }
}