How do you upload a file to an FTP server?
Use the FTPClient Class from the Apache Commons Net library.
This is a snippet with an example:
FTPClient client = new FTPClient();FileInputStream fis = null;try { client.connect("ftp.domain.com"); client.login("admin", "secret"); // // Create an InputStream of the file to be uploaded // String filename = "Touch.dat"; fis = new FileInputStream(filename); // // Store file to server // client.storeFile(filename, fis); client.logout();} catch (IOException e) { e.printStackTrace();} finally { try { if (fis != null) { fis.close(); } client.disconnect(); } catch (IOException e) { e.printStackTrace(); }}Snippet taken from http://www.kodejava.org/examples/356.html
I have used the EDT FTP package, a free GPL library for FTP in Java: http://www.enterprisedt.com/products/edtftpj/overview.html
Here is a code sample, from the Demo.java class they provide:
ftp = new FTPClient();ftp.setRemoteHost("hostname");// connectftp.connect();// loginftp.login("user", "password");// set up passive ASCII transfersftp.setConnectMode(FTPConnectMode.PASV);ftp.setType(FTPTransferType.ASCII);// get directory and print it to console String[] files = ftp.dir(".", true);for (int i = 0; i < files.length; i++) log.debug(files[i]);// copy file to server ftp.put("test.txt", "test.txt");// copy file from serverftp.get("test.txt" + ".copy", "test.txt");// delete file from serverftp.delete("test.txt");// Shut down client ftp.quit();