public String convertHashToString2(HashMap<String, Boolean> hash) {
		if (hash.isEmpty() || hash == null || hash.size() < 1) return "";
		StringBuilder sb = new StringBuilder();
		for (Map.Entry<String, Boolean> en : hash.entrySet()) {
			sb.append(en.getKey()+":"+en.getValue()+",");
		}
		sb.deleteCharAt(sb.length()-1);
		return sb.toString();
	}