Springboot未找到bean

Question

我有下一个映射器：

@Mapper
@Component
public interface PriceEntityMapper {

    @Mapping(source="brandId", target="brandId")
    @Mapping(source="startDate", target="startDate", qualifiedByName = "timestampToLocalDateTime")
    @Mapping(source="endDate", target="endDate", qualifiedByName = "timestampToLocalDateTime")
    @Mapping(source="priceList", target="priceList")
    @Mapping(source="productId", target="productId")
    @Mapping(source="priority", target="priority")
    @Mapping(source="price", target="price")
    @Mapping(source="curr", target="currency")
    Price priceEntityToPrice(PriceEntity priceEntity);

    @Named("timestampToLocalDateTime")
    default LocalDateTime timestampToLocalDateTime(Timestamp timestamp) {
        return timestamp.toLocalDateTime();
    }
}

和下一个暗示：

@Service
public class PriceServiceImpl implements PriceService {

    private final PriceRepository priceRepository;
    private final PriceEntityMapper priceEntityMapper;

    @Autowired
    public PriceServiceImpl(PriceRepository priceRepository, PriceEntityMapper priceEntityMapper) {
        this.priceRepository = priceRepository;
        this.priceEntityMapper = priceEntityMapper;
    }

    @Override
    public Price getPrice(LocalDateTime applicationDate, Integer productId, Integer brandId) {
        try {

            //PriceEntity priceEntity = priceRepository.findByBrandIdAndProductIdAndStartDateLessThanEqualApplicationDateAndEndDateGreaterThanEqualApplicationDate(brandId, productId, Timestamp.valueOf(applicationDate));
            return priceEntityMapper.priceEntityToPrice(new PriceEntity());

        } catch (Exception e) {

            throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Price not found", e);

        }
    }
}

当我尝试运行应用程序时，出现下一个错误：

com.dharian.application.service.PriceServiceImpl 中构造函数的参数 1 需要类型为“com.dharian.infraestruct.mapper.PriceEntityMapper”的 bean，但无法找到。

但是我有注释@Mapper和@Component，我也有

@SpringBootApplication
@ComponentScan({"com.dharian.infraestructure","com.dharian.application"})
public class PruebatecnicaApplication {

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

}

用于扫描包裹但不起作用。

可以是什么？

我尝试了@ComponentScan，更改自动装配，并更改Mapper类上的注释

Answer 1

您必须通过 MapStruct 方式将其声明为 bean，而不是使用

@Component

：

@Mapper(componentModel = "spring")
public interface PriceEntityMapper {

否则，你必须使用：而不是使用依赖注入：

PriceEntityMapper mapper = Mappers.getMapper(PriceEntityMapper.class)