public static String loadFromFile() throws IOException {
        Map<String, UserEntity> map = new HashMap<String, UserEntity>();
        String webRoot = Utils.getWebRoot();//this.getServletConfig().getServletContext().getRealPath("/");
        File file = new File(webRoot + "account.txt");
        BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
        String line = null;
        StringBuffer content = new StringBuffer();
        String[] data = null;
        UserEntity user = null;
        String[] dataTmp = null;
        while ((line = reader.readLine()) != null) {
            if (StringUtil.isBlank(line) || line.startsWith("#"))
                continue;
            content.append("\r\n" + line);
            user = new UserEntity();
            data = line.split("=");
            user.setUsername(data[0]);
            dataTmp = data[1].split(":");
            user.setPassword(dataTmp[0]);
            user.setEmail(dataTmp.length > 1 ? dataTmp[1] : user.getUsername());
//            user.setStatus(dataTmp.length > 2 ? Byte.valueOf(dataTmp[2] ): null);
            map.put(user.getUsername(), user);
        }
        Scheduler.setUsers(map);
        return content.toString();
    }