Uploading a file to an FTP server from an Android phone?

Question

Below is the code that involves creating a text document and uploading it to my FTP server. For some reason this does not work. I used the libraries provided in

http://lavalatwork.blogspot.tw/2010/09/using-apache-commons-ftp-library-in.html

to communicate with the FTP server.

try { final String testString = new String("Hello"); FileOutputStream fOut = openFileOutput("samplefile.txt", MODE_WORLD_READABLE); OutputStreamWriter osw = new OutputStreamWriter(fOut); osw.write(testString); osw.flush(); osw.close(); } catch(IOException ex) { } FTPClient mFTP = new FTPClient(); try { // Connect to FTP Server mFTP.connect("192.168.10.101"); //mFTP.login("user", "password"); mFTP.setFileType(FTP.BINARY_FILE_TYPE); mFTP.enterLocalPassiveMode(); // Prepare file to be uploaded to FTP Server File file = new File(getFileStreamPath("samplefile.txt")+ ""); FileInputStream ifile = new FileInputStream(file); // Upload file to FTP Server mFTP.storeFile("filetotranfer",ifile); mFTP.disconnect(); } catch (SocketException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } 

Any help would be appreciated.

Answer 1

See this ...... This will help you fix problems in your code.

I used the apache commons library to upload and download audio files to and from the server ... see this ...

Unloading:

 public void goforIt(){ FTPClient con = null; try { con = new FTPClient(); con.connect("192.168.2.57"); if (con.login("Administrator", "KUjWbk")) { con.enterLocalPassiveMode(); // important! con.setFileType(FTP.BINARY_FILE_TYPE); String data = "/sdcard/vivekm4a.m4a"; FileInputStream in = new FileInputStream(new File(data)); boolean result = con.storeFile("/vivekm4a.m4a", in); in.close(); if (result) Log.v("upload result", "succeeded"); con.logout(); con.disconnect(); } } catch (Exception e) { e.printStackTrace(); } } 

Download:

 public void goforIt(){ FTPClient con = null; try { con = new FTPClient(); con.connect("192.168.2.57"); if (con.login("Administrator", "KUjWbk")) { con.enterLocalPassiveMode(); // important! con.setFileType(FTP.BINARY_FILE_TYPE); String data = "/sdcard/vivekm4a.m4a"; OutputStream out = new FileOutputStream(new File(data)); boolean result = con.retrieveFile("vivekm4a.m4a", out); out.close(); if (result) Log.v("download result", "succeeded"); con.logout(); con.disconnect(); } } catch (Exception e) { Log.v("download result","failed"); e.printStackTrace(); } } 

Answer 2

You can use Simple Java FTP Client and add it as an external bank for your project, you can also refer to this link

 public class FileUpload { /** * Upload a file to a FTP server. A FTP URL is generated with the * following syntax: * ftp://user: password@host :port/filePath;type=i. * * @param ftpServer , FTP server address (optional port ':portNumber'). * @param user , Optional user name to login. * @param password , Optional password for user. * @param fileName , Destination file name on FTP server (with optional * preceding relative path, eg "myDir/myFile.txt"). * @param source , Source file to upload. * @throws MalformedURLException, IOException on error. */ public void upload( String ftpServer, String user, String password, String fileName, File source ) throws MalformedURLException, IOException { if (ftpServer != null && fileName != null && source != null) { StringBuffer sb = new StringBuffer( "ftp://" ); // check for authentication else assume its anonymous access. if (user != null && password != null) { sb.append( user ); sb.append( ':' ); sb.append( password ); sb.append( '@' ); } sb.append( ftpServer ); sb.append( '/' ); sb.append( fileName ); /* * type ==> a=ASCII mode, i=image (binary) mode, d= file directory * listing */ sb.append( ";type=i" ); BufferedInputStream bis = null; BufferedOutputStream bos = null; try { URL url = new URL( sb.toString() ); URLConnection urlc = url.openConnection(); bos = new BufferedOutputStream( urlc.getOutputStream() ); bis = new BufferedInputStream( new FileInputStream( source ) ); int i; // read byte by byte until end of stream while ((i = bis.read()) != -1) { bos.write( i ); } } finally { if (bis != null) try { bis.close(); } catch (IOException ioe) { ioe.printStackTrace(); } if (bos != null) try { bos.close(); } catch (IOException ioe) { ioe.printStackTrace(); } } } else { System.out.println( "Input not available." ); } } 

You can also use the Apache commons-net-ftp library, for more details you can focus on this link .

 import org.apache.commons.net.ftp.FTPClient; FTPClient ftpClient = new FTPClient(); try { ftpClient.connect(InetAddress.getByName(SERVER)); ftpClient.login(USERNAME, PASSWORD); ftpClient.changeWorkingDirectory(PATH); if (ftpClient.getReplyString().contains("250")) { ftpClient.setFileType(org.apache.commons.net.ftp.FTP.BINARY_FILE_TYPE); BufferedInputStream buffIn = null; buffIn = new BufferedInputStream(new FileInputStream(FULL_PATH_TO_LOCAL_FILE)); ftpClient.enterLocalPassiveMode(); ProgressInputStream progressInput = new ProgressInputStream(buffIn, progressHandler); boolean result = ftpClient.storeFile(localAsset.getFileName(), progressInput); buffIn.close(); ftpClient.logout(); ftpClient.disconnect(); } } catch (SocketException e) { Log.e(SorensonApplication.TAG, e.getStackTrace().toString()); } catch (UnknownHostException e) { Log.e(SorensonApplication.TAG, e.getStackTrace().toString()); } catch (IOException e) { Log.e(SorensonApplication.TAG, e.getStackTrace().toString()); } 

Answer 3

Here is the code block:

 private class UploadFile extends AsyncTask<String, Integer, Boolean> { @Override protected Boolean doInBackground(String... params) { FTPClient client = new FTPClient(); try { client.connect(params[1], PORT); client.login(params[2], params[3]); client.setFileType(FTP.BINARY_FILE_TYPE, FTP.BINARY_FILE_TYPE); return client.storeFile(filename, new FileInputStream(new File( params[0]))); } catch (Exception e) { Log.d("FTP", e.toString()); return false; } } @Override protected void onPostExecute(Boolean sucess) { if (sucess) Toast.makeText(activity, "File Sent", Toast.LENGTH_LONG).show(); else Toast.makeText(activity, "Error", Toast.LENGTH_LONG).show(); } } 

Get a complete working draft for uploading files to an FTP server from the disk below.

Uploading files to FTP uses PORT 21, a required parameter for uploading a file to FTP.

hostname username password

https://drive.google.com/file/d/0B80LBJs3JkaDYUNfZ3pDSkVJUDA/edit