mapper.xml 使用 if else

1.代码

	<select id="getList" resultType="com.xxx.xxx.giftcard.response.UserGiftCardListResponse">
        select
        	ugc.id,
        	ugc.order_id,
        	ugc.user_id,
        	ugc.status,
        	ugc.is_give,
        	ugc.give_send_time,
        	ugc.end_receive_time,
        	ugc.receive_id,
        	ugc.card_number,
        	ugc.type,
        	ugc.convert_time,
        	ugc.gift_card_id
        from
			user_gift_card ugc
        where
        	1=1
        <if test="isConvert != null">
            <choose>
                <when test="isConvert == 0">
                    and ugc.status != 2
                when>
                <otherwise>
                    and ugc.status = 2
                otherwise>
            choose>
        if>
        <if test="isBuy != null">
            <choose>
                <when test="isBuy == 0">
                    and ugc.user_id = 0
                when>
                <otherwise>
                    and ugc.user_id > 0
                otherwise>
            choose>
        if>
    select>