JPEG corrupted after sending to server

Question

I am trying to write an Android application that takes a user image and uploads it to a server. I can view the image on my phone, but cannot view the image when I copy the file from the server. I am using the Apache commons library to do FTP uploads. The file appears, and the size is correct, but it cannot be opened.

public static void uploadImage(Bitmap bitmap,String path)
    {
        String filePath="RENT/images/capture/TESTFILE.jpg";
        try 
        {
        FTPClient client = new FTPClient();
            client.connect("MY IP");
            client.login("USER", "PWD");
            client.enterLocalPassiveMode();
            Log.i("aaa","connected: "+client.isConnected());
            Log.i("aaa","going to addr: "+client.getRemoteAddress());
            FileInputStream fis = new FileInputStream(bitmapToFile(bitmap));
            Log.i("aaa","2-starting to upload file");
            client.storeFile(filePath, fis);
            fis.close();
            client.logout();
            Log.i("aaa","3-file upload complete");
        } 
        catch (IOException e) {
            e.printStackTrace();
        }
    }
    public static File bitmapToFile(Bitmap bitmap) throws IOException
    {
        File outputDir = con.getCacheDir();
        File outputFile = File.createTempFile("testFile", ".jpg", outputDir);


        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        bitmap.compress(CompressFormat.JPEG, 90, bos);
        byte[] bitmapdata = bos.toByteArray();

        //write the bytes in file
        FileOutputStream fos = new FileOutputStream(outputFile);
        fos.write(bitmapdata);
        fos.flush();
        fos.close();

        return outputFile;
    }
}

Answer 1

I found a solution. The entire (working) code is below: (requires apache libraries).

import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.http.client.ClientProtocolException;

I used version 4.0.1 for this project.

public static void uploadImage(String path)
    {
        FTPClient ftpClient = new FTPClient();
        try {
            ftpClient.connect("IP");
            ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
            ftpClient.setFileTransferMode(FTP.STREAM_TRANSFER_MODE);
            ftpClient.setSoTimeout(10000);
            ftpClient.enterLocalPassiveMode();
            if(ftpClient.login("USR", "PWD"))
            {
                Log.i("aaa","Path: "+path);
                File sFile=new File(path);
                if(!sFile.exists())
                    Log.i("aaa","file not exist");
                FileInputStream fs= new FileInputStream(sFile);
                String fileName = "xxx.jpg";
                Boolean result = ftpClient.storeFile("RENT/images/capture/" + fileName, fs);
                Log.i("aaa","result: "+result);
                if(result)
                    new File(path).delete();
            }
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

I needed to set both the ftpClient.fileType and the ftpClient.setFileTransferMode to binary filetype.