在查看好友動態的需求裏用到過
<select id="selectConcernDynamicByPage" parameterType="DynamicListOption" resultMap="BaseResultMap"> select <include refid="Base_Column_List"/> <if test="userIds !=null"> AND user_id in <foreach collection="userIds" index="index" item="item" open="(" separator="," close=")"> #{item} </foreach> </if> </select>
DynamicListoption裏寫了
private List<Long> userIds;