select u.user_id, u.username, u.password, u.phone, u.balance, u.role_id, r.role_name from t_user u left join t_role r on u.role_id=r.role_id update t_user set balance=#{userBalance} where user_id=#{userId} and username=#{requestUser.username} and password=#{requestUser.password} and username=#{username} and user_id=#{userId}