FileNotFoundException on Android version > 2.3

Question

I try to download a file to sdcard on my phone. On Android 2.1, 2.2 and 2.3 everything works like intended, but on Android 4.0 (testen on emulator and my Galaxy Nexus) it throws a FileNotFoundException.

Stacktrace:

02-27 21:49:06.733: W/System.err(27648): java.io.FileNotFoundException: http://www.wdr.de/wdrlive/media/wdr5.m3u
02-27 21:49:06.733: W/System.err(27648):    at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:177)
02-27 21:49:06.733: W/System.err(27648):    at de.arvidg.test.StartActivity$9.run(StartActivity.java:833)
02-27 21:49:06.733: W/System.err(27648):    at java.lang.Thread.run(Thread.java:856)

My method for downloading file:

downloadFile("http://www.wdr.de/wdrlive/media/wdr5.m3u");

    public void downloadFile(final String fileUrl) {
        new Thread(new Runnable() {

            @Override
            public void run() {
                try {

                    URL url = new URL(fileUrl);

                    HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();

                    urlConnection.setRequestMethod("GET");
                    urlConnection.setDoOutput(true);

                    urlConnection.connect();

//                  File cacheDir = appContext.getExternalCacheDir();
//                  File file = new File("/mnt/sdcard", "/cacheFile.ext");
                    File SDCardRoot = Environment.getExternalStorageDirectory();
                    File file = new File(SDCardRoot,"/cacheFile.ext");

                    if(!file.exists()) file.createNewFile();

                    FileOutputStream fileOutput = new FileOutputStream(file);

                    InputStream inputStream = urlConnection.getInputStream();

                    int totalSize = urlConnection.getContentLength();
                    int downloadedSize = 0;

                    byte[] buffer = new byte[1024];
                    int bufferLength = 0;

                    while ( (bufferLength = inputStream.read(buffer)) > 0 ) {
                        fileOutput.write(buffer, 0, bufferLength);
                        downloadedSize += bufferLength;
                        Log.d(TAG, "downloadedSize = " + downloadedSize + " | totalSize = " + totalSize);
//                      updateProgress(downloadedSize, totalSize);

                    }
                    fileOutput.close();

            } catch (MalformedURLException e) {
                    e.printStackTrace();
            } catch (IOException e) {
                    e.printStackTrace();
                }
            }

        }).start();
    }

Fertility

It's not what's causing your problem, but you should not be using an absolute file name for the cache file. Try this instead: File file = new File(SDCardRoot,"cacheFile.ext"); (note the absence of "/"). – Remise

Ok, thanks. Will do it for sure. Anyone get idea where the error comes from? – Fertility

Check the response code urlConnection.getResponseCode(); before process input stream. – Junina

Nice. Thanks. 405 - Method not allowed. Is there another download message ("GET" dont seems to work). – Fertility

Try to comment this string urlConnection.setRequestMethod("GET"); in your code. – Orpheus

Yury: The same error. urlConnection.getRequestMethod() returns only POST. I think I have to live, that I cant get the file. Is it possible to open file and get content? – Fertility

The weird thing is, that it work on Android 2.2. :D – Fertility

Some one suggest using apache httpClient can fix it,not sure if it works in your case here ICS, worth to check it out – Junina

Answer 1

Simple remove urlConnection.setDoOutput(true);

Thanks to pfn @ #android-dev

Fertility

Nice answer +1 for short and convenient Thanks it solved my problem. – Vanzant

Good it is working. but with localhost IP not by using 10.0.2.2. – Gadolinite

Apparently this line in JAVA forces the http protocol to change a GET to a POST regardless of specifying the GET – Gadolinite

But that gives me an error IO error: Does not support output java.net.Protocol Exception: Does not support output – Rumen

same here System.err(9083): java.net.ProtocolException: method does not support a request body: GET – Timoshenko

Answer 2

So to answer the original question, a FileNotFoundException also comes when you get an error message from the server and then try to access getInputStream(). If the Response code is a 400 or above, any call to getInputStream() will throw this error. In this case, you should check getErrorStream() instead. See my answer here.

Emolument