public String generatePageKey(Object[] args, String key) {
		Page page = getPageArgument(args);
		if (page == null) {
			return null;
		}
		if (StringUtils.isEmpty(key)) {
			key = generateCacheKey(args);
		}
		if (StringUtils.isEmpty(key)) { // 无法创建key
			return null;
		}
		StringBuilder builder = new StringBuilder("page-");
		builder.append(key);
		return builder.toString();
	}