mmm that's strange. First of all, are you using a real device or the emulator? Which android version? Are you connecting through Wi-Fi o Mobile Network?
I just tried your code and it seems fast (max 6 seconds...but never 20). For the PrintStream, you might try wrapping the OutputStream inside a BufferedOutputStream, like this: PrintStream os = new PrintStream (new BufferedOutputStream (urlConnection. getOutputStream())); What's odd is that by using this URLConnection, every request takes about 2 seconds...instead with the Apache HttpClient the first request would take like 20 seconds, and the next ones less than 1 second...grrrrr Also, with 3G it seems slightly slower (although now I'm really confused...I did a couple of requests, and it took between 0.5 to 2 seconds each :S).. Maybe someone has a bit more of experience and can explain what's happening? Or what is the *correct* way of doing https requests (possibly fast :D)? Thanks! Yuvi On Wed, Jan 27, 2010 at 1:18 PM, Ronan <[email protected]> wrote: > Hi Yuvi, > > did you find that implementing the code using url.openConnection() > improved the performance of the initial connection to SSL? > > i implemented as follows > > try { > > String myHttpsUrl = " > https://myurl/api/find_user.xml";; > URL url = new URL(myHttpsUrl); > HttpsURLConnection urlConnection = > (HttpsURLConnection) > url.openConnection(); > urlConnection.setDoOutput(true); > urlConnection.setDoInput(true); > urlConnection.setFollowRedirects(false); > Log.w("dial2do","getting output stream"); > PrintStream os = new PrintStream( > urlConnection.getOutputStream()); > Log.w("dial2do","got output stream"); > StringBuilder sbOUT = new StringBuilder(); > sbOUT.append("value1=test2"); > sbOUT.append("&value2=test2"); > os.print(sbOUT.toString()); > BufferedReader br = new BufferedReader(new > InputStreamReader > (urlConnection.getInputStream())); > String line; > StringBuilder htmlContent = new StringBuilder(); > while ((line = br.readLine()) != null) { > htmlContent.append(line); > } > Log.w("dial2do", htmlContent.toString()); > } catch (Exception e) { > e.printStackTrace(); > } > > but i find that i get up to 20 sec delay on PrintStream os = new > PrintStream( urlConnection.getOutputStream()); > > has this been your experience? > > thanks in advance > > Ronan > > On Jan 26, 10:07 pm, Yuvi <[email protected]> wrote: > > I think I found why this protocol error occurs. It seems the problem are > > indeed the redirects, but only when there are redirects that go from > HTTPS > > to HTTP. In fact I tried also that same code with urlhttps:// > www.google.com, > > and it gave the same error (it was redirecting tohttp://www.google.com). > > > > To disable the automatic redirect following I used: > > HttpsURLConnection.setFollowRedirects(false); // for HTTPS requests > > HttpURLConnection.setFollowRedirects(false); // for HTTP requests > > > > Now I have to find out how to read the http/s response headers from the > > URLConnection, to get the "location" field. (if someone already knows > > that.....telll meeee :D:D). > > > > Ciao! > > Yuvi > > > > On Tue, Jan 26, 2010 at 9:52 PM, Jason Proctor < > > > > > > > > [email protected]> wrote: > > > well this does seem to point to a long initialisation period for the > Apache > > > library. i don't have anything informed to suggest on the protocol > error - > > > maybe the Apache library supports more SSL protocols than the regular > Java > > > network library? dunno. checking versions etc couldn't hurt. > > > > > there's a bunch of redirects going on with > thathttps://mip.sunrise.chURL, btw. something somewhere might be falling > over that. > > > > > hth > > > > > Yeah probably it has something to do with all the initialization > stuff...I > > >> just tried *not* using the Apache HttpClient, with the following code: > > > > >> String myHttpsUrl = "<https://mip.sunrise.ch/>https://mip.sunrise.ch > "; > > > > >> URL url = new URL(myHttpsUrl); > > >> URLConnection urlConnection = url.openConnection(); > > > > >> BufferedReader br = new BufferedReader(new > > >> InputStreamReader(ucon.getInputStream())); > > >> String line; > > >> StringBuilder htmlContent = new StringBuilder(); > > >> while ((line = br.readLine()) != null) { > > >> htmlContent.append(line); > > >> } > > > > >> (I'm reading the whole content just to make sure my request has been > > >> executed and fetched..). > > > > >> Anyway....it seems much faster!! (first request around 2 seconds, > compared > > >> to the HttpClient's 6, 10 or 20 seconds). > > > > >> However there is a problem: with the current https url it actually > doesn't > > >> work (it worked for other https addresses). I get back the following > error > > >> (with the url "<https://mip.sunrise.ch/>https://mip.sunrise.ch";): > > > > >> java.io.IOException: SSL handshake failure: Failure in SSL library, > > >> usually a protocol error > > >> error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol > > >> (external/openssl/ssl/s23_clnt.c:585 0xaf589f78:0x00000000) > > >> at > > >> > org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.nativeconnect(Nativ > e > > >> Method) > > >> at > > >> > org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(Open > SSLSocketImpl.java:308) > > >> at > > >> > org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.getSecureSocket(HttpConnection.java:173) > > >> at > > >> > org.apache.harmony.luni.internal.net.www.protocol.https.HttpsURLConnection$HttpsEngine.connect(HttpsURLCon...) > > >> at > > >> > org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.sendRequest(HttpURLConnection.jav...) > > >> at > > >> > org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.doRequestInternal(HttpURLConnecti...) > > >> at > > >> > org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.doRequest(HttpURLConnection.java:...) > > >> at > > >> > org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection....) > > >> at > > >> > org.apache.harmony.luni.internal.net.www.protocol.https.HttpsURLConnection.getInputStream(HttpsURLConnecti...) > > > > >> It seems like an ssl version error...mmmm.... > > >> Maybe I have to specify explicitly this version somewhere? Or maybe > some > > >> certificates? :S > > > > >> If anyone has an idea please let me know :) > > > > >> Thanks everyone! > > >> Yuvi > > > > >> .... > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
