private User register(String nickName, String photoPath) {
if (StringUtil.isEmptyOrNull(nickName)) {
throw new IllegalArgumentException();
}
long userId = userDao.getId();
User user = new User();
user.setPhotoPath(photoPath);
user.setNickName(nickName + userId);
user.setAddTime(new Date());
user.setUserId(userId);
return this.addUser(user);
}
