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POUnable to download the file from local server to android emulator
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10229601
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2012-04-19T13:54:26.730
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2015-12-12T02:12:00.830
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2014-03-21T04:43:47.857
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1196969
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I am trying to download the data from the local server on my emulator but I am not getting getting the data. How can this task be completed my downloading activity is <pre><code>public class DownloadZipActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); UnzipManager.startUnzipping();//Downloader.getZipURL(); // System.out.println(" file "+file); } } </code></pre> My Downloader.java is <pre><code>public class Downloader { public static String getZipURL(){ String result = ""; InputStream is = null; try{ String url = "http://www.example.com/webservice-demo/File name.zip"; String thePath = URLEncoder.encode(url, "UTF-8"); System.out.println(" thePath "+thePath); HttpPost httppost = new HttpPost(thePath); HttpParams httpParameters = new BasicHttpParams(); int timeoutConnection = 3000; HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection); int timeoutSocket = 3000; HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket); DefaultHttpClient httpclient = new DefaultHttpClient(httpParameters); HttpResponse response = httpclient.execute(httppost); HttpEntity entity = response.getEntity(); is = entity.getContent(); }catch(Exception e){ Log.e("getZipURL", "Error in http connection "+e.toString()); return null; } try{ BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8); StringBuilder sb = new StringBuilder(); String line = null; while ((line = reader.readLine()) != null) { sb.append(line + "\n"); } is.close(); result=sb.toString(); return result; }catch(Exception e){ Log.e("convertZipURL", "Error converting result "+e.toString()); return null; } } } </code></pre> And my UnZipManager.java class is <pre><code>public class UnzipManager { private static String BASE_FOLDER; public static Context localContext; /* *You can use this flag to check whether Unzipping *thread is still running.. */ public static boolean isDownloadInProgress; /* * After unzipping using this flag ,you can check * whether any low memory exceptions * Occurred or not..and alert user accordingly.. */ public static boolean isLowOnMemory; public static void startUnzipping() { /* * MAKE SURE THAT localContext VARIABLE HAS BEEN * INITIALIZED BEFORE INVOKING THIS METHOD. * * ALSO MAKE SURE YOU HAVE SET "INTERNET" AND * "NETWORK ACCESS STATE" PERMISSIONS IN * APPLICATION'S MANIFEST FILE. * */ Log.d("DEBUG","In startUnzipping()"); //UnzipManager.BASE_FOLDER=UnzipManager.localContext.getFilesDir().getPath(); /* * */ // Log.d("DEBUG","BASE_FOLDER:"+UnzipManager.BASE_FOLDER); UnzipManager.isLowOnMemory=false; //Start unzipping in a thread..which is safer //way to do high cost processes.. new UnzipThread().start(); } private static class UnzipThread extends Thread{ @Override public void run() { UnzipManager.isDownloadInProgress=true; Log.d("DEBUG","Unzipping----------------------------"); URLConnection urlConnection ; try { /************************************************ * * IF you are unzipping a zipped file save under * some URL in remote server * **********************************************/ String url = "http://www.example.com/webservice-demo/Package name.zip"; String thePath = URLEncoder.encode(url, "UTF-8"); URL finalUrl =new URL(thePath /* Url string where the zipped file is stored...*/); urlConnection = finalUrl.openConnection(); //Get the size of the ( zipped file's) inputstream from server.. int contentLength=urlConnection.getContentLength(); Log.d("DEBUG", "urlConnection.getContentLength():"+contentLength); /***************************************************** * * YOU CAN GET INPUT STREAM OF A ZIPPED FILE FROM * ASSETS FOLDER AS WELL..,IN THAT CASE JUST PASS THAT * INPUTSTEAM OVER HERE...MAKE SURE YOU * HAVE SET STREAM CONTENT LENGTH OF THE SAME.. * ******************************************************/ ZipInputStream zipInputStream = new ZipInputStream(urlConnection.getInputStream()); /* * Iterate over all the files and folders */ for (ZipEntry zipEntry = zipInputStream.getNextEntry(); zipEntry != null; zipEntry = zipInputStream.getNextEntry()) { Log.d("DEBUG","Extracting: " + zipEntry.getName() + "..."); /* * Extracted file will be saved with same * file name that in zipped folder. */ String innerFileName = BASE_FOLDER + File.separator + zipEntry.getName(); File innerFile = new File(innerFileName); /* * Checking for pre-existence of the file and * taking necessary actions */ if (innerFile.exists()) { Log.d("DEBUG","The Entry already exits!, so deleting.."); innerFile.delete(); } /* * Checking for extracted entry for folder * type..and taking necessary actions */ if (zipEntry.isDirectory()) { Log.d("DEBUG","The Entry is a directory.."); innerFile.mkdirs(); } else { Log.d("DEBUG","The Entry is a file.."); FileOutputStream outputStream = new FileOutputStream(innerFileName); final int BUFFER_SIZE = 2048; /* * Get the buffered output stream.. * */ BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(outputStream,BUFFER_SIZE); /* * Write into the file's buffered output stream ,.. */ int count = 0; byte[] buffer = new byte[BUFFER_SIZE]; while ((count = zipInputStream.read(buffer, 0, BUFFER_SIZE)) != -1) { bufferedOutputStream.write(buffer, 0, count); } /*********************************************** * IF YOU WANT TO TRACK NO OF FILES DOWNLOADED, * HAVE A STATIC COUNTER VARIABLE, INITIALIZE IT * IN startUnzipping() before calling startUnZipping(), * AND INCREMENT THE COUNTER VARIABLE * OVER HERE..LATER YOU CAN USE VALUE OF * COUNTER VARIABLE TO CROSS VERIFY WHETHER ALL * ZIPPED FILES PROPERLY UNZIPPED AND SAVED OR NOT. * * ************************************************ */ /* * Handle closing of output streams.. */ bufferedOutputStream.flush(); bufferedOutputStream.close(); } /* * Finish the current zipEntry */ zipInputStream.closeEntry(); } /* * Handle closing of input stream... */ zipInputStream.close(); Log.d("DEBUG","--------------------------------"); Log.d("DEBUG","Unzipping completed.."); } catch (IOException e) { Log.d("DEBUG","Exception occured: " + e.getMessage()); if(e.getMessage().equalsIgnoreCase("No space left on device")) { UnzipManager.isLowOnMemory=true; } e.printStackTrace(); } UnzipManager.isDownloadInProgress=false; } }; } </code></pre>
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<android><download>
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Unable to download the file from local server to android emulator
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