java新增关联的三张表,每张表要求都插入集合,代码实现方式

// lombok
@Data
public class GoodsSellAttributeDTO {
    private Integer nameId;
    private Integer valueId;
    private Integer firstLevelId;
    private String  firstLevelName;
    private Integer secondLevelId;
    private String secondLevelName;
    private Integer thirdLevelId;
    private String thirdLevelName;
    private String attributeName;
    private String required;
    // 放入第二张表的DTO
    private List<GoodsSellAttributeValueDTO> goodsSellAttributeValueDTO;

@Data
public class GoodsSellAttributeValueDTO {
    private Integer nameId;
    private String attributeValue;
    private Integer valueId;
    // 放入第三张表的DTO
    private List<GoodsSubAttributeValueDTO> goodsSubAttributeValueDTO;
    }

@Data
public class GoodsSubAttributeValueDTO {
    private Integer valueId;
    private String  subValue;
    }

   <!--第一张表的新增 -->
    <insert id="insertGoodsSellAttributes" keyProperty="nameId" useGeneratedKeys="true" parameterType="com.dy.mallConfig.pojo.dto.GoodsSellAttributeDTO">
        INSERT INTO goods_sell_attribute
                (first_level_id,
                second_level_id,
                third_level_id,
            first_level_name,
            second_level_name,
            third_level_name,
            attribute_name,
            required,
            status)
            VALUES
        <foreach collection="list" separator="," item="item" index="index">
                (#{item.firstLevelId},
                #{item.secondLevelId},
                #{item.thirdLevelId},
            #{item.firstLevelName},
            #{item.secondLevelName},
            #{item.thirdLevelName},
            #{item.attributeName},
            #{item.required},
            '1')
        </foreach>
    </insert>

<!-- 第二张表-->
    <insert id="insertGoodsSellAttributeValues" keyProperty="valueId" useGeneratedKeys="true" parameterType="com.dy.mallConfig.pojo.dto.GoodsSellAttributeValueDTO">
        INSERT INTO goods_sell_attribute_value
            (name_id,attribute_value,status) VALUES
        <foreach collection="list" index="goodsIndex" item="item" separator="),(" open="(" close=")" >
            #{item.nameId},
            #{item.attributeValue,jdbcType=VARCHAR},
            '1'
        </foreach>
    </insert>

<!-- 第三张表-->
<insert id="insertGoodsSubAttributeValue" parameterType="com.dy.mallConfig.pojo.dto.GoodsSellAttributeValueDTO">
        INSERT INTO goods_sub_attribute_value
            (value_id,
            sub_value,
            status)
            VALUES
        <foreach collection="list" separator="," index="index" item="items">
        <foreach collection="items.goodsSubAttributeValueDTO" item="items1" index="index" separator="),(" open="(" close=")">
            #{items.valueId},
            #{items1.subValue},
            '1'
        </foreach>
        </foreach>
    </insert>

// 第一张表
int insertGoodsSellAttributes(List<GoodsSellAttributeDTO> goodsSellAttributeDTO);
// 第二张表
    int insertGoodsSellAttributeValues(List<GoodsSellAttributeValueDTO> goodsSellAttributeValueDTO);
// 第三张表
    int insertGoodsSubAttributeValue(List<GoodsSellAttributeValueDTO> goodsSellAttributeValueDTO);

// 接口
OutputObject insertGoodsSellAttributes(List<GoodsSellAttributeDTO> goodsSellAttributeDTO);

@Service
public class GoodsSellAttributeServiceImpl implements GoodsSellAttributeService {
    /**
     * 添加Log日志
     * @author zhushaojie
     */
    private static final Logger LOGGER = LoggerFactory.getLogger(com.dy.mallConfig.service.impl.GoodsSellAttributeServiceImpl.class);

    @Autowired
    private GoodsSellAttributeMapper goodsSellAttributeMapper;
    
	@Override
	// 事务注解
    @Transactional(rollbackFor = Exception.class)
    public OutputObject insertGoodsSellAttributes(List<GoodsSellAttributeDTO> goodsSellAttributeDTO) {
        try {
            // 批量添加一级属性
            int i = goodsSellAttributeMapper.insertGoodsSellAttributes(goodsSellAttributeDTO);

             // 将商品属性和属性子属性中 抽离出来
            List<GoodsSellAttributeValueDTO> goodsSellAttributeValueDTO = goodsSellAttributeDTO.stream()
                    .flatMap(o -> o.getGoodsSellAttributeValueDTO().stream().peek(s -> {
                        s.setNameId(o.getNameId());
                    })).collect(Collectors.toList());
            if (i > 0 || goodsSellAttributeValueDTO.size()>0) {
                // 一级属性添加完后，回调一级id添加到二级当中，进行新增操作
                int i1 = goodsSellAttributeMapper.insertGoodsSellAttributeValues(goodsSellAttributeValueDTO);

                List<List<GoodsSubAttributeValueDTO>>  goodsSubAttributeValueDTO= goodsSellAttributeValueDTO.stream().map(GoodsSellAttributeValueDTO::getGoodsSubAttributeValueDTO)
                        .collect(Collectors.toList());
                if (i1 > 0 && goodsSubAttributeValueDTO.get(0)!=null) {
                    // 二级属性添加完后，回调二级id添加到二级当中，进行新增操作
                    goodsSellAttributeMapper.insertGoodsSubAttributeValue(goodsSellAttributeValueDTO);
                }
                return new OutputObject(ReturnCode.SUCCESS, "添加成功", "添加成功");

            }else {
                return new OutputObject(ReturnCode.FAIL, "添加失败", goodsSellAttributeDTO);
            }

        }catch (Exception e){
            // 事务回滚
            TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();
            return new OutputObject(ReturnCode.FAIL, "添加失败", e.getMessage());
        }
        }


}

@RequestMapping("/insertGoodsSellAttributes")
    @ResponseBody
    public OutputObject insertGoodsSellAttributes(@RequestBody List<GoodsSellAttributeDTO> goodsSellAttributeDTO){
        return goodsSellAttributeService.insertGoodsSellAttributes(goodsSellAttributeDTO);
    }