SELECT id, title, content, create_time, update_time, (select user_name from automessage_sys_user where user_id=a.update_user_id)updateUserName, update_user_id, (select user_name from automessage_sys_user where user_id=a.create_user_id)createUserName, create_user_id FROM automessage_common_problem a and title like concat('%', #{title}, '%') and content like concat('%', #{content}, '%') select count(*) from automessage_common_problem and title like concat('%', #{title}, '%') and content like concat('%', #{content}, '%')