ssm框架dao層中的xml文件中使用for循環

  <select id="selectByNameAndCategoryIds" resultMap="BaseResultMap" parameterType="map">
    SELECT
    <include refid="Base_Column_List"/>
    from mmall_product
    where status = 1
    <if test="productName != null">
      and name like #{productName}
    </if>
    <if test="categoryIdList != null" >
      and category_id in
      <foreach item="item" index="index" open="(" separator="," close=")" collection="categoryIdList">
        #{item}
      </foreach>
    </if>
  </select>

List<Product> selectByNameAndCategoryIds(@Param("productName") String productName, @Param("categoryIdList") List<Integer> categoryIdList);