@Override
	public void deleteFollow(String userId, String uid, String tagName)
			throws WeiboException, KankantuException, UserNotAuthorizeException {
		// 获取要关注的用户的信息
		SinaWeiboRecommendUser user = sinaWeiboRecommendUserService.getByUid(userId, uid);
		if (null == user) {
			throw new SinaweiboUserNotFoundException(uid);
		}
		// 保存关注的用户
		sinaWeiboFollowDao.delete(userId, user, tagName);		
	}