@Override
  public BindSite checkLogin(
      BindSite.SiteMark siteMark, String openId, String accessToken, long tokenExpireIn) {
    // 第三方用户信息在当前平台保存的信息
    BindSite bs = bindSiteDao.queryByOpenId(siteMark, openId);
    // 获取第三方用户信息
    BindSite bsOther = UserServiceImpl.getBindSite(siteMark, openId, accessToken);

    if (bs != null) {
      // 更新token等信息
      bsOther.setBindSiteId(bs.getBindSiteId());
      this.changeToken(bsOther, tokenExpireIn);
    } else {
      // 注册用户
      User user = register(bsOther.getNickName(), bsOther.getPhotoPath());
      // 绑定平台
      bs = bindSiteUser(user.getUserId(), siteMark, openId, accessToken, tokenExpireIn, true);
    }
    return bs;
  }
  @Override
  public BindSite bindSiteUser(
      Long userId,
      SiteMark siteMark,
      String openId,
      String accessToken,
      long tokenExpireIn,
      boolean regFlag) {
    if (userId == null || userId <= 0) {
      throw new IllegalArgumentException();
    }

    BindSite bs3 = bindSiteDao.queryByOpenId(siteMark, openId);
    if (bs3 != null) {
      throw new ServiceException(ErrService.UserS.ACC_108, "当前第三方账号已经被其他账号绑定!");
    }
    // 当前用户是否已经绑定
    BindSite bs = bindSiteDao.queryByUserId(siteMark, userId);
    // 获取第三方用户信息
    BindSite bsOther = UserServiceImpl.getBindSite(siteMark, openId, accessToken);

    if (bs != null) {
      // 更新token等信息
      bsOther.setBindSiteId(bs.getBindSiteId());
      this.changeToken(bsOther, tokenExpireIn);
    } else {
      // 绑定平台
      bs = new BindSite();
      bs.setAccessToken(accessToken);
      bs.setOpenId(openId);
      bs.setNickName(bsOther.getNickName());
      bs.setRegFlag(regFlag);
      bs.setSiteMark(siteMark);
      bs.setUserId(userId);
      bs.setStartDate(new Date());
      bs.setEndDate(new Date(bs.getStartDate().getTime() + tokenExpireIn));
      bs.setPhotoPath(bsOther.getPhotoPath());
      bindSiteDao.insert(bs);
    }
    return bs;
  }