public static String getProperty(String key){

        InputStream in = PropertiesUtils.class.getResourceAsStream("/conf.properties");

        Properties properties = new Properties();

        String value;

        try {

            properties.load(in);

            value = properties.getProperty(key);

            in.close();

            return value;

        } catch (IOException e) {

            e.printStackTrace();

        }

        return null;

    }