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POAndroid 4.0.3 HTTP POST file to PHP server failed
 

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  1. POAndroid 4.0.3 HTTP POST file to PHP server failed
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    <p>I am just upgrading my Android from 2.3.4 to 4.0.3, but find a problem when I want to post a file (around 2MB) to a php server through the http post method. But it looks like Android 4.0.3 does not work while Android 2.3.4 works well.</p> <p>The following is part of my Android code to post a file:</p> <pre><code>private boolean postFile(String urlstr, String localpath, String uploadname) { HttpURLConnection conn = null; DataOutputStream os = null; String lineEnd = "\r\n"; String twoHyphens = "--"; String boundary = "*****"; int bytesRead, bytesAvailable, bufferSize, bytesUploaded = 0; byte[] buffer; int maxBufferSize = 2*1024*1024; try { FileInputStream fis = new FileInputStream(new File(localpath) ); URL url = new URL(urlstr); conn = (HttpURLConnection) url.openConnection(); conn.setChunkedStreamingMode(maxBufferSize); // POST settings. conn.setDoInput(true); conn.setDoOutput(true); conn.setUseCaches(false); conn.setRequestMethod("POST"); conn.setRequestProperty("Connection", "Keep-Alive"); conn.setRequestProperty("Content-Type", "multipart/form-data; boundary="+boundary); os = new DataOutputStream(conn.getOutputStream()); os.writeBytes(twoHyphens + boundary + lineEnd); os.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\"" + uploadname +"\"" + lineEnd); os.writeBytes(lineEnd); bytesAvailable = fis.available(); System.out.println("available: " + String.valueOf(bytesAvailable)); bufferSize = Math.min(bytesAvailable, maxBufferSize); buffer = new byte[bufferSize]; prog = 0; bytesRead = fis.read(buffer, 0, bufferSize); bytesUploaded += bytesRead; while (bytesRead &gt; 0) { prog = bytesUploaded/bytesAvailable; os.write(buffer, 0, bufferSize); bytesAvailable = fis.available(); bufferSize = Math.min(bytesAvailable, maxBufferSize); buffer = new byte[bufferSize]; bytesRead = fis.read(buffer, 0, bufferSize); bytesUploaded += bytesRead; } System.out.println("uploaded: "+String.valueOf(bytesUploaded)); os.writeBytes(lineEnd); os.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd); // Responses from the server (code and message) conn.setConnectTimeout(2000); // allow 2 seconds timeout. int rcode = conn.getResponseCode(); if (rcode == 200) Toast.makeText(getApplicationContext(), "Success!!", Toast.LENGTH_LONG).show(); else Toast.makeText(getApplicationContext(), "Failed!!", Toast.LENGTH_LONG).show(); //String rmsg = conn.getResponseMessage(); fis.close(); os.flush(); os.close(); return rcode == 200; } catch (Exception ex) { ex.printStackTrace(); return false; } } </code></pre> <p>Then I get the following exception:</p> <pre><code>02-02 22:38:34.626: W/System.err(5547): android.os.NetworkOnMainThreadException 02-02 22:38:34.631: W/System.err(5547): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099) 02-02 22:38:34.631: W/System.err(5547): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84) 02-02 22:38:34.631: W/System.err(5547): at libcore.io.IoBridge.connectErrno(IoBridge.java:127) 02-02 22:38:34.636: W/System.err(5547): at libcore.io.IoBridge.connect(IoBridge.java:112) 02-02 22:38:34.641: W/System.err(5547): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192) 02-02 22:38:34.641: W/System.err(5547): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459) 02-02 22:38:34.641: W/System.err(5547): at java.net.Socket.connect(Socket.java:842) 02-02 22:38:34.641: W/System.err(5547): at libcore.net.http.HttpConnection.&lt;init&gt;(HttpConnection.java:77) 02-02 22:38:34.646: W/System.err(5547): at libcore.net.http.HttpConnection.&lt;init&gt;(HttpConnection.java:50) 02-02 22:38:34.646: W/System.err(5547): at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:351) 02-02 22:38:34.646: W/System.err(5547): at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:86) 02-02 22:38:34.646: W/System.err(5547): at libcore.net.http.HttpConnection.connect(HttpConnection.java:128) 02-02 22:38:34.651: W/System.err(5547): at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:308) 02-02 22:38:34.651: W/System.err(5547): at libcore.net.http.HttpEngine.connect(HttpEngine.java:303) 02-02 22:38:34.651: W/System.err(5547): at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:282) 02-02 22:38:34.651: W/System.err(5547): at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:232) 02-02 22:38:34.656: W/System.err(5547): at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:80) 02-02 22:38:34.656: W/System.err(5547): at libcore.net.http.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:188) 02-02 22:38:34.656: W/System.err(5547): at edu.socialsense.SocialsenseService.postFile(SocialsenseService.java:324) 02-02 22:38:34.661: W/System.err(5547): at edu.socialsense.SocialsenseService.report(SocialsenseService.java:285) 02-02 22:38:34.661: W/System.err(5547): at edu.socialsense.SocialsenseService.access$7(SocialsenseService.java:279) 02-02 22:38:34.661: W/System.err(5547): at edu.socialsense.SocialsenseService$1.onReceive(SocialsenseService.java:79) 02-02 22:38:34.661: W/System.err(5547): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:728) 02-02 22:38:34.661: W/System.err(5547): at android.os.Handler.handleCallback(Handler.java:605) 02-02 22:38:34.666: W/System.err(5547): at android.os.Handler.dispatchMessage(Handler.java:92) 02-02 22:38:34.666: W/System.err(5547): at android.os.Looper.loop(Looper.java:137) 02-02 22:38:34.666: W/System.err(5547): at android.app.ActivityThread.main(ActivityThread.java:4507) 02-02 22:38:34.666: W/System.err(5547): at java.lang.reflect.Method.invokeNative(Native Method) 02-02 22:38:34.671: W/System.err(5547): at java.lang.reflect.Method.invoke(Method.java:511) 02-02 22:38:34.671: W/System.err(5547): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) 02-02 22:38:34.671: W/System.err(5547): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556) 02-02 22:38:34.671: W/System.err(5547): at dalvik.system.NativeStart.main(Native Method) </code></pre> <p>When I follow the code from step to step, I found the exception happened when the url connection tried to connect, say conn.connect() or conn.getOutputStream().</p> <p>Please help me on this...</p> <p>Thank you so much!</p>
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