Summary of recent days (non-technical article)

        I have been busy with projects in recent days , Busy writing interfaces , Interact with the front end .

         The fact proved that , It is very important to understand each other in front and back , And I also found that , As the back-end , Not only need to write a good interface , Also have the ability to communicate with the front end , This is very important . It's all lessons .

        I've been studying recently springdata jpa, stay dao layer , That is to say repository For simple crud You don't have to write sql Of the statement , By viewing the repository The inherited interface can be seen , This encapsulates many methods , such as ：

          Finally, I hope to communicate better with the front end , Write interfaces that make me more satisfied and the front end more satisfied .

Last code

/**
     *  Super administrator modifies user permission level 
     */
    @Transactional
    @Modifying
    @Query(value = "update user set user_status=?1 where user_id=?2", nativeQuery = true)
    int modifyUserStatus(int userStatus, int userID);

         come on.