public List<Weibo> startParse(String res) {
		try {
			JSONArray jsonArray = new JSONArray(res);
			int size = jsonArray.length();
			List<Weibo> list = new ArrayList<Weibo>(size);
			for (int i = 0; i < size; i++) {
				JSONObject object = jsonArray.getJSONObject(i);
				Weibo weibo = parseToWeiboSina(object);
				if (weibo==null||weibo.equals(null)) {
					continue;
				}
				JSONObject user = object.getJSONObject("user");
				if (storage.userExist(user.getString("id"),2)) {
					User sUser = parseToUserSina(user);
					storage.updateUser(sUser);
				}
				list.add(weibo);
			}
			return list;
		} catch (JSONException e) {
			e.printStackTrace();
		}
		return null;
	}