Example usage for org.apache.commons.net.ftp FTPSClient connect

Introduction

In this page you can find the example usage for org.apache.commons.net.ftp FTPSClient connect.

Prototype

public void connect(InetAddress host) throws SocketException, IOException 

Source Link

Document

Opens a Socket connected to a remote host at the current default port and originating from the current host at a system assigned port.

Usage

From source file:examples.ftp.FTPSExample.java

public static final void main(String[] args) throws NoSuchAlgorithmException {
    int base = 0;
    boolean storeFile = false, binaryTransfer = false, error = false;
    String server, username, password, remote, local;
    String protocol = "SSL"; // SSL/TLS
    FTPSClient ftps;

    for (base = 0; base < args.length; base++) {
        if (args[base].startsWith("-s"))
            storeFile = true;//  www. j  av a  2  s . co m
        else if (args[base].startsWith("-b"))
            binaryTransfer = true;
        else
            break;
    }

    if ((args.length - base) != 5) {
        System.err.println(USAGE);
        System.exit(1);
    }

    server = args[base++];
    username = args[base++];
    password = args[base++];
    remote = args[base++];
    local = args[base];

    ftps = new FTPSClient(protocol);

    ftps.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out)));

    try {
        int reply;

        ftps.connect(server);
        System.out.println("Connected to " + server + ".");

        // After connection attempt, you should check the reply code to verify
        // success.
        reply = ftps.getReplyCode();

        if (!FTPReply.isPositiveCompletion(reply)) {
            ftps.disconnect();
            System.err.println("FTP server refused connection.");
            System.exit(1);
        }
    } catch (IOException e) {
        if (ftps.isConnected()) {
            try {
                ftps.disconnect();
            } catch (IOException f) {
                // do nothing
            }
        }
        System.err.println("Could not connect to server.");
        e.printStackTrace();
        System.exit(1);
    }

    __main: try {
        ftps.setBufferSize(1000);

        if (!ftps.login(username, password)) {
            ftps.logout();
            error = true;
            break __main;
        }

        System.out.println("Remote system is " + ftps.getSystemName());

        if (binaryTransfer)
            ftps.setFileType(FTP.BINARY_FILE_TYPE);

        // Use passive mode as default because most of us are
        // behind firewalls these days.
        ftps.enterLocalPassiveMode();

        if (storeFile) {
            InputStream input;

            input = new FileInputStream(local);

            ftps.storeFile(remote, input);

            input.close();
        } else {
            OutputStream output;

            output = new FileOutputStream(local);

            ftps.retrieveFile(remote, output);

            output.close();
        }

        ftps.logout();
    } catch (FTPConnectionClosedException e) {
        error = true;
        System.err.println("Server closed connection.");
        e.printStackTrace();
    } catch (IOException e) {
        error = true;
        e.printStackTrace();
    } finally {
        if (ftps.isConnected()) {
            try {
                ftps.disconnect();
            } catch (IOException f) {
                // do nothing
            }
        }
    }

    System.exit(error ? 1 : 0);
}

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