加@Param("")?

dao

//根據(jù)區(qū)域id獲取對(duì)應(yīng)的 樓宇、樓層、房間數(shù)據(jù)范圍
List<DbAread> findBuildingListByAreaId(@Param("dbAread")DbAread dbAread,@Param("type")Integer type);

xml

<!-- 根據(jù)區(qū)域id獲取對(duì)應(yīng)的 樓宇、樓層、房間數(shù)據(jù)范圍 -->
<select id="findBuildingListByAreaId" resultType="DbAread" >
SELECT
<include refid="dbAreadColumns"/>
FROM db_aread a
<include refid="dbAreadJoins"/>
<where>
area_id ?=#{dbAread.dbArea.id}
</where>
GROUP BY?
<choose>
<when test="type !=null and type == 1 ">
a.building_id
</when>
<when test="type !=null and type == 2 ">
a.storey_id
</when>
<when test="type !=null and type == 3 ">
a.room_id
</when>
<otherwise>
</otherwise>
</choose>
</select>

不加@Param("") ? 不用寫(xiě)?dbAread參數(shù)

//根據(jù) 樓宇樓層房間 ?獲取區(qū)域明細(xì) (找對(duì)應(yīng)的區(qū)域)
List<DbAread> findDbAreadByBBR(DbAread dbAread);

<!-- 根據(jù) 樓宇樓層房間 ?獲取區(qū)域明細(xì) (找對(duì)應(yīng)的區(qū)域) -->
<select id="findDbAreadByBBR" resultType="DbAread" >
SELECT
<include refid="dbAreadColumns"/>
FROM db_aread a
<include refid="dbAreadJoins"/>
<where> 1=1?
<if test="dbBuilding !=null and dbBuilding.id !=null and dbBuilding.id != ''">
and a.building_id ?=#{dbBuilding.id}
</if>
<if test="dbBuildingStorey !=null and dbBuildingStorey.id !=null and dbBuildingStorey.id != '' ">
and a.storey_id ?=#{dbBuildingStorey.id}
</if>
<if test="dbBsRoom !=null and dbBsRoom.id !=null and dbBsRoom.id != '' ">
and a.room_id ?=#{dbBsRoom.id}
</if>
</where>
</select>

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