How to copy a file on the FTP server to a directory on the same server in Java?

Question

I\'m using Apache Commons FTP to upload a file. Before uploading I want to check if the file already exists on the server and make a backup from it to a backup directory on

Answer 1

Try this way,

I am using apache's library .

ftpClient.rename(from, to) will make it easier, i have mentioned in the code below where to add ftpClient.rename(from,to).

public void goforIt(){


        FTPClient con = null;

        try
        {
            con = new FTPClient();
            con.connect("www.ujudgeit.net");

            if (con.login("ujud3", "Stevejobs27!!!!"))
            {
                con.enterLocalPassiveMode(); // important!
                con.setFileType(FTP.BINARY_FILE_TYPE);
                String data = "/sdcard/prerakm4a.m4a";
                ByteArrayInputStream(data.getBytes());
                FileInputStream in = new FileInputStream(new File(data));
                boolean result = con.storeFile("/Ads/prerakm4a.m4a", in);
                in.close();
                if (result) 
                       {
                            Log.v("upload result", "succeeded");

//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$Add the backup Here$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//

                   // Now here you can store the file into a backup location

                  // Use ftpClient.rename(from, to) to place it in backup

//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$Add the backup Here$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//

                       }
                con.logout();
                con.disconnect();
            }
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }   

    }