动态set mybatis与ibatis的写法

mybatis:

<set>
            <if test="obj.buyerId != null">
                buyerId = #{obj.buyerId},
            </if>
            <if test="obj.country != null and obj.country.length() > 0">
                country = #{obj.country},
            </if>
            <if test="obj.province != null and obj.province.length() > 0">
                province = #{province},
            </if>
            <if test="obj.city != null and obj.city.length() > 0">
                city = #{obj.city},
            </if>
            <if test="obj.district != null and obj.district.length() > 0">
                district = #{obj.district},
            </if>
            <if test="obj.detailAddress != null and obj.detailAddress.length() > 0">
                detail_address = #{obj.detailAddress},
            </if>
            <if test="obj.country != null and obj.country.length() > 0">
                country = #{obj.country},
            </if>
            <if test="obj.isDefault != null and obj.isDefault.length() > 0">
                isDefault = #{obj.isDefault}
            </if>
        </set>

ibatis：

<dynamic prepend="SET">
            <isNotEmpty prepend="," property="obj.name">
                name = #obj.name#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.nick">
                nick = #obj.nick#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.lastLoginDate">
                last_login_date = #obj.lastLoginDate#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.weixinUnionId">
                weixin_union_id = #obj.weixinUnionId#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.email">
                email = #obj.email#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.qq">
                qq = #obj.qq#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.weixinOpenId">
                weixin_open_id = #obj.weixinOpenId#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.weixinId">
                weixin_id = #obj.weixinId#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.sessionKey">
                session_key = #obj.sessionKey#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.mobile">
                mobile = #obj.mobile#
            </isNotEmpty>
            <isNotNull prepend="," property="obj.sex">
                sex = #obj.sex#
            </isNotNull>
            <isNotEmpty prepend="," property="obj.avatar">
                avatar = #obj.avatar#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.sellerId">
                seller_id = #obj.sellerId#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.shopId">
                shop_id = #obj.shopId#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.mpId">
                mp_id = #obj.mpId#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.city">
                city = #obj.city#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.province">
                province = #obj.province#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.language">
                language = #obj.language#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.country">
                country = #obj.country#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.phoneNumber">
                phone_number = #obj.phoneNumber#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.countryCode">
                country_code = #obj.countryCode#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.memberType">
                member_type = #obj.memberType#
            </isNotEmpty>
            <isNotEmpty prepend="," property="obj.remark">
                remark = #obj.remark#
            </isNotEmpty>
        </dynamic>