mapstruct 用于实体间的转换

代码样例

@Mapper(componentModel = "spring")
public interface SellerReviewDTOConverter {
    @Mappings({
            @Mapping(source = "reviewRateId", target = "id"),
            @Mapping(source = "reviewContent", target = "detail"),
            @Mapping(source = "zonedReviewTime", target = "createdAt", dateFormat = "yyyy-MM-dd HH:mm:ss"),
            @Mapping(source = "reviewStatus", target = "status"),
            @Mapping(source = "realBuyerName", target = "customerName"),
            @Mapping(source = "buyerId", target = "customerId"),
            @Mapping(source = "tradeOrderId", target = "orderId"),
            @Mapping(source = "zonedBoughtDate", target = "orderTime", dateFormat = "yyyy-MM-dd HH:mm:ss"),
            @Mapping(source = "qcTag", target = "tag"),
            @Mapping(source = "rejectionReason", target = "rejectionReason")
    })
    SellerReviewResponseDTO dto2domain(SellerReviewDTO o);
}

编译结果

@Component
public class SellerReviewCsvDTOConverterImpl implements SellerReviewCsvDTOConverter {
    public SellerReviewCsvDTOConverterImpl() {
    }

    public SellerReviewCsvDTO dto2domain(SellerReviewDTO o) {
        if (o == null) {
            return null;
        } else {
            SellerReviewCsvDTO sellerReviewCsvDTO = new SellerReviewCsvDTO();
            if (o.getZonedReviewTime() != null) {
                sellerReviewCsvDTO.setCreatedAt(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss").format(o.getZonedReviewTime()));
            }

            if (o.getTradeOrderId() != null) {
                sellerReviewCsvDTO.setOrderId(String.valueOf(o.getTradeOrderId()));
            }

            sellerReviewCsvDTO.setCustomerEmail(o.getBuyerEmail());
            sellerReviewCsvDTO.setSellerName(o.getSellerName());
            sellerReviewCsvDTO.setRating(o.getRating());
            sellerReviewCsvDTO.setClient(o.getClientType());
            sellerReviewCsvDTO.setReviewOrigin(o.getSource());
            sellerReviewCsvDTO.setDetail(o.getReviewContent());
            sellerReviewCsvDTO.setRejectionReason(o.getRejectionReason());
            sellerReviewCsvDTO.setCustomerName(o.getRealBuyerName());
            sellerReviewCsvDTO.setStatus(o.getReviewStatus());
            return sellerReviewCsvDTO;
        }
    }
}

@Mapper 注解的 componentModel 属性

用于指定自动生成的接口实现类的组件类型，这个属性支持四个值：

• default: 这是默认的情况，mapstruct 不使用任何组件类型, 可以通过Mappers.getMapper(Class)方式获取自动生成的实例对象。
• cdi: the generated mapper is an application-scoped CDI bean and can be retrieved via @Inject
• spring: 生成的实现类上面会自动添加一个@Component注解，可以通过Spring的 @Autowired方式进行注入
• jsr330: 生成的实现类上会添加@javax.inject.Named 和@Singleton注解，可以通过 @Inject注解获取