t.id_ as id , t.activity_id_ as activityId , t.reward_name_ as rewardName , t.reward_describe_ as rewardDescribe , t.img_url_ as imgUrl , t.create_time_ as createTime , t.create_by_ as createBy , t.update_time_ as updateTime , t.update_by_ as updateBy SELECT FROM activity_reward t where t.id_ = #{id} SELECT FROM activity_reward t where t.activity_id_ = #{id} SELECT FROM activity_reward t