Диапазон HttpUrlConnection Диапазон в Android игнорируется

Я пытаюсь получить ответ 206 с моего сервера с помощью Android.

Вот код.

@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_splash); new AsyncTask<Void, Void, Void>() { @Override protected Void doInBackground(Void... params) { try { URL url = new URL("http://aviddapp.com/10mb.file"); HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection(); urlConnection.setRequestProperty("Range", "bytes=1-2"); urlConnection.connect(); System.out.println("Response Code: " + urlConnection.getResponseCode()); System.out.println("Content-Length: " + urlConnection.getContentLength()); Map<String, List<String>> map = urlConnection.getHeaderFields(); for (Map.Entry<String, List<String>> entry : map.entrySet()) { System.out.println("Key : " + entry.getKey() + " ,Value : " + entry.getValue()); } InputStream inputStream = urlConnection.getInputStream(); long size = 0; while(inputStream.read() != -1 ) size++; System.out.println("Downloaded Size: " + size); }catch(MalformedURLException mue) { mue.printStackTrace(); }catch(IOException ioe) { ioe.printStackTrace(); } return null; } }.execute(); } 

Вот результат:

 I/System.out: Respnse Code: 200 I/System.out: Content-Length: -1 I/System.out: Key : null ,Value : [HTTP/1.1 200 OK] I/System.out: Key : Accept-Ranges ,Value : [bytes] I/System.out: Key : Cache-Control ,Value : [max-age=604800, public] I/System.out: Key : Connection ,Value : [Keep-Alive] I/System.out: Key : Date ,Value : [Tue, 04 Oct 2016 07:45:22 GMT] I/System.out: Key : ETag ,Value : ["a00000-53e051f279680-gzip"] I/System.out: Key : Expires ,Value : [Tue, 11 Oct 2016 07:45:22 GMT] I/System.out: Key : Keep-Alive ,Value : [timeout=5, max=100] I/System.out: Key : Last-Modified ,Value : [Tue, 04 Oct 2016 07:36:42 GMT] I/System.out: Key : Server ,Value : [Apache/2.4.12 (Unix) OpenSSL/1.0.1e-fips mod_bwlimited/1.4] I/System.out: Key : Transfer-Encoding ,Value : [chunked] I/System.out: Key : Vary ,Value : [Accept-Encoding,User-Agent] I/System.out: Key : X-Android-Received-Millis ,Value : [1475567127403] I/System.out: Key : X-Android-Response-Source ,Value : [NETWORK 200] I/System.out: Key : X-Android-Sent-Millis ,Value : [1475567127183] I/System.out: Downloaded Size: 10485760 

Теперь я делаю то же самое, это чистая java.

• HttpURLConnection отлично работает в Android 2.x, но НЕ в 4.1: не обнаружены проблемы аутентификации
• Отключить проверку SSL-сертификата HTTPS-соединения?
• Как установить заголовок авторизации (OAuth токен) в запросе OKHTTPClient для Android
• Используя HttpURLConnection и HttpsURLConnection для подключения к https?
• Остановка молчащих попыток в HttpURLConnection

 public static void main(String... args) { try { URL url = new URL("http://aviddapp.com/10mb.file"); HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection(); urlConnection.setRequestProperty("Range", "bytes=1-2"); urlConnection.connect(); System.out.println("Respnse Code: " + urlConnection.getResponseCode()); System.out.println("Content-Length: " + urlConnection.getContentLength()); Map<String, List<String>> map = urlConnection.getHeaderFields(); for (Map.Entry<String, List<String>> entry : map.entrySet()) { System.out.println("Key : " + entry.getKey() + " ,Value : " + entry.getValue()); } InputStream inputStream = urlConnection.getInputStream(); long size = 0; while(inputStream.read() != -1 ) size++; System.out.println("Downloaded Size: " + size); }catch(MalformedURLException mue) { mue.printStackTrace(); }catch(IOException ioe) { ioe.printStackTrace(); } } 

Вот результат

 Respnse Code: 206 Content-Length: 2 Key : Keep-Alive ,Value : [timeout=5, max=100] Key : null ,Value : [HTTP/1.1 206 Partial Content] Key : Server ,Value : [Apache/2.4.12 (Unix) OpenSSL/1.0.1e-fips mod_bwlimited/1.4] Key : Content-Range ,Value : [bytes 1-2/10485760] Key : Connection ,Value : [Keep-Alive] Key : Last-Modified ,Value : [Tue, 04 Oct 2016 07:36:42 GMT] Key : Date ,Value : [Tue, 04 Oct 2016 07:42:17 GMT] Key : Accept-Ranges ,Value : [bytes] Key : Cache-Control ,Value : [max-age=604800, public] Key : ETag ,Value : ["a00000-53e051f279680"] Key : Vary ,Value : [Accept-Encoding,User-Agent] Key : Expires ,Value : [Tue, 11 Oct 2016 07:42:17 GMT] Key : Content-Length ,Value : [2] Downloaded Size: 2 

Как вы можете видеть, я получаю разные коды ответов в обоих случаях. Похоже, Android не пропускает Range на сервер, может быть? Что тут происходит?

PS: Я получаю 206, если размер файла равен 1 МБ.

• Как отключить HttpUrlConnection на телефонах HTC (Froyo и ниже)?
• Java.io.IOException: в ICS 4.0.3 полученная проверка подлинности завершена
• Ошибка HttpURLConnection на Android
• Почему андроид HttpURLConnection не отправляет FIN?
• HttpUrlConnection не находит вызов NTLM на Android

 new Thread() { @Override public void run() { try { URL url = new URL("http://aviddapp.com/10mb.file"); HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection(); // urlConnection.setRequestMethod("HEAD"); urlConnection.setRequestProperty("Accept-Encoding", ""); urlConnection.setRequestProperty("Range", "bytes=1-2"); urlConnection.connect(); System.out.println("Response Code: " + urlConnection.getResponseCode()); System.out.println("Content-Length: " + urlConnection.getContentLength()); Map<String, List<String>> map = urlConnection.getHeaderFields(); for (Map.Entry<String, List<String>> entry : map.entrySet()) { System.out.println("Key : " + entry.getKey() + " ,Value : " + entry.getValue()); } InputStream inputStream = urlConnection.getInputStream(); long size = 0; while (inputStream.read() != -1) size++; System.out.println("Downloaded Size: " + size); } catch (IOException ioe) { ioe.printStackTrace(); } } }.start(); 

 urlConnection.setRequestProperty("Accept-Encoding", ""); 

  urlConnection.setRequestProperty("Range", "bytes=1000-");