Comments (1)
对应P205
不改的话类型映射会出问题
这里会遇到一个问题,就是方法getAttrGroupWithAttrsBySpuId明明指定了返回类型为List(SpuItemAttrGroupVo)
漏写resultmap的话,返回类型为List(AttGroupEntity)居然不报错?`
<!-- 可根据自己的需求,是否要使用 --> <resultMap type="com.zsy.product.entity.AttrGroupEntity" id="attrGroupMap"> <result property="attrGroupId" column="attr_group_id"/> <result property="attrGroupName" column="attr_group_name"/> <result property="sort" column="sort"/> <result property="descript" column="descript"/> <result property="icon" column="icon"/> <result property="catelogId" column="catelog_id"/> </resultMap> <resultMap id="spuItemAttrGroupVo" type="com.zsy.product.vo.SpuItemAttrGroupVo"> <result property="groupName" column="attr_group_name"></result> <collection property="attrs" ofType="com.zsy.product.vo.Attr"> <result column="attr_name" property="attrName"></result> <result column="attr_value" property="attrValue"></result> </collection> </resultMap> <select id="getAttrGroupWithAttrsBySpuId" resultMap="spuItemAttrGroupVo"> SELECT product.spu_id, pag.attr_group_id, pag.attr_group_name, product.attr_id, product.attr_name, product.attr_value FROM pms_product_attr_value product LEFT JOIN pms_attr_attrgroup_relation paar ON product.attr_id = paar.attr_id LEFT JOIN pms_attr_group pag ON paar.attr_group_id = pag.attr_group_id WHERE product.spu_id = #{spuId} AND pag.catelog_id = #{catalogId} </select>
`
多谢,确实少写了,没注意到这个地方。
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