apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/spi/springsecurity/SpringSecurityUserInfoHolder.java/SpringSecurityUserInfoHolder/getUser
class SpringSecurityUserInfoHolder:  @Override
  public UserInfo getUser() {
    String userId = this.getCurrentUsername();
    UserInfo userInfoFound = this.userService.findByUserId(userId);
    if (userInfoFound != null) {
      return userInfoFound;
    }
    UserInfo userInfo = new UserInfo();
    userInfo.setUserId(userId);
    return userInfo;
  }