更新用户基本信息

//usercontroller
 @PutMapping("/update")
    public Result update(@RequestBody User user){
        userService.update(user);
        return Result.success();
    }

//userService
void update(User user);

//userServiceImpl
@Override
    public void update(User user){

        user.setUpdateTime(LocalDateTime.now());
        userMapper.update(user);
    }

//userMapper
@Update("update user set nickname=#{nickname},email=#{email},update_time=#{updateTime} where id=#{id}")
    void update(User user);