Spring使用@Autowired为抽象父类注入依赖代码实例

public abstract class BaseCar {
  Settings settings;
}

@Component
public class SportsCar extends BaseCar{
  //Autowired修饰方法时，根据方法参数类型判断实例化哪个类
  @Autowired 
  public void haha(Settings settings){
    super.settings=settings;//父类属性注入
  }

  public void print(){

    System.out.print(settings.getSpeed());
  }
}

public abstract class BusinessService {
  
  @Lazy
  @Autowired 
  protected RedisUtil redisUtil;
  
  Logger logger = LoggerFactory.getLogger(this.getClass());
}