protected void configConnection(HttpURLConnection conn) {
		conn.setReadTimeout(DownloadUtils.READ_TIMEOUT);
		conn.setConnectTimeout(DownloadUtils.CONNECT_TIMEOUT);
		Set<Entry<String, String>> entrySet = DownloadUtils.ORIGIN_EXTRA_HEADER.entrySet();
		for (Entry<String, String> entry : entrySet) {
			conn.setRequestProperty(entry.getKey(), entry.getValue());
		}

		if (EXTRA_HEADER != null) {
			entrySet = EXTRA_HEADER.entrySet();
			for (Entry<String, String> entry : entrySet) {
				conn.setRequestProperty(entry.getKey(), entry.getValue());
			}
		}
	}