FTP Client

irishpal25

im looking for a simple ftp client that connects and can upload and download a file. i want it for work so that i can customise it. (they like stuff like that lol)

ive written a bit of stuff but have had no joy. id love to hook it up to a GUI too.

Cheers

public static void main (String[] args)
	{
		String serverName;
		FTPConnection ftp = null;
		
		try
		{
			if (args.length == 0)
			{
				serverName = getStringFromUser("Enter the server you would like to connect to: ");
				if (serverName.length() == 0)  {  return;  }
			}  else  {
				serverName = args[0];
			}
			
			// set the FTPConnection parameter to true if you want to
			// see debug output in your console window
			ftp = new FTPConnection(false);
			System.out.println("Trying to connect anonymously to " + serverName);
			ftp.connect(serverName);
			
			
			if (ftp.login("username", "PW"))
			{
				System.out.println("Successfully logged in!");
				System.out.println("System type is: " + ftp.getSystemType());
				System.out.println("Current directory is: " + ftp.getCurrentDirectory());
				String files = ftp.listFiles();
				String subDirs = ftp.listSubdirectories();
				System.out.println("Files in Directory:\n" + files);
				System.out.println("Subdirectories:\n" + subDirs);
				
				// try to change to the first subdirectory
				StringTokenizer st = new StringTokenizer(subDirs, ftp.lineTerm);
				String sdName = "";
				if (st.hasMoreTokens())  { sdName = st.nextToken(); }
				
				if (sdName.length() > 0)
				{
					System.out.println("Changing to directory " + sdName);
					if (ftp.changeDirectory(sdName))
					{
						// just for kicks, try to download the first 3 files in the directory
						files = ftp.listFiles();
						st = new StringTokenizer(files, ftp.lineTerm);
						
						String fileName;
						int count = 1;
						while ((st.hasMoreTokens()) && (count < 3)) {
							fileName = st.nextToken();
							System.out.println("Downloading " + fileName + " to C:\\");
							try
							{
								if (ftp.downloadFile(fileName, "C:\\" + fileName))
								{
									System.out.println("Download successful!");
								}  else  {
									System.out.println("Error downloading " + fileName);
								}
							}  catch(Exception de)  {
								System.out.println("ERROR: " + de.getMessage());
							}
							
							count++;
						}
					}
					
				}  else  {
					System.out.println("There are no Subdirectories!");
				}
				
				ftp.logout();
				ftp.disconnect();
				System.out.println("Disconnected and Logged Out.");
			}  else  {
				System.out.println("Sorry. Could not connect.");
			}
		}  catch(Exception e)  {
			e.printStackTrace();
			try { ftp.disconnect(); }  catch(Exception e2)  {}
		}
	}

	private static String getStringFromUser(String prompt) throws IOException
	{
		System.out.print(prompt);
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		return br.readLine();
	}

}

irishpal25

here is a gui i made. quick question. how would i connect the ftp program to the pane ive left. like run the whole program inside there?

/****************************************************************/
/*                      FTPCLIENT	                            */
/*                                                              */
/****************************************************************/
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
/**
 * Summary description for FTPCLIENT
 *
 */
public class FTPCLIENT extends JFrame
{
	// Variables declaration
	private JLabel log;
	private JLabel info;
	private JTextField serveradd;
	private JTextField username;
	private JTextField password;
	private JList jList1;
	private JScrollPane jScrollPane1;
	private JButton Connect;
	private JButton disconnect;
	private JPanel contentPane;
	//-----
	private JPanel jPanel1;
	//-----
	// End of variables declaration


	public FTPCLIENT()
	{
		super();
		initializeComponent();
		//
		// TODO: Add any constructor code after initializeComponent call
		//

		this.setVisible(true);
	}

	
	private void initializeComponent()
	{
		log = new JLabel();
		info = new JLabel();
		serveradd = new JTextField();
		username = new JTextField();
		password = new JTextField();
		jList1 = new JList();
		jScrollPane1 = new JScrollPane();
		Connect = new JButton();
		disconnect = new JButton();
		contentPane = (JPanel)this.getContentPane();
		//-----
		jPanel1 = new JPanel();
		//-----

		//
		// log
		//
		log.setText("Activity Log");
		//
		// info
		//
		info.setText("FTP Connection Info");
		//
		// serveradd
		//
		serveradd.setText("Server Address");
		serveradd.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e)
			{
				serveradd_actionPerformed(e);
			}

		});
		//
		// username
		//
		username.setText("Username");
		username.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e)
			{
				username_actionPerformed(e);
			}

		});
		//
		// password
		//
		password.setText("Password");
		password.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e)
			{
				password_actionPerformed(e);
			}

		});
		//
		// jList1
		//
		jList1.addListSelectionListener(new ListSelectionListener() {
			public void valueChanged(ListSelectionEvent e)
			{
				jList1_valueChanged(e);
			}

		});
		//
		// jScrollPane1
		//
		jScrollPane1.setViewportView(jList1);
		//
		// Connect
		//
		Connect.setText("Connect");
		Connect.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e)
			{
				Connect_actionPerformed(e);
			}

		});
		//
		// disconnect
		//
		disconnect.setText("Disconnect");
		disconnect.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e)
			{
				disconnect_actionPerformed(e);
			}

		});
		//
		// contentPane
		//
		contentPane.setLayout(null);
		addComponent(contentPane, log, 8,174,60,18);
		addComponent(contentPane, info, 158,77,116,30);
		addComponent(contentPane, serveradd, 11,40,100,22);
		addComponent(contentPane, username, 10,94,100,22);
		addComponent(contentPane, password, 9,123,100,22);
		addComponent(contentPane, jScrollPane1, 3,198,120,159);
		addComponent(contentPane, Connect, 237,58,83,28);
		addComponent(contentPane, disconnect, 334,57,88,28);
		addComponent(contentPane, jPanel1, 155,101,262,221);
		//
		// jPanel1
		//
		jPanel1.setLayout(new FlowLayout(FlowLayout.CENTER, 5, 5));
		jPanel1.setBorder(BorderFactory.createEtchedBorder());
		//
		// FTPCLIENT
		//
		this.setTitle("FTP CLIENT");
		this.setLocation(new Point(-1, -1));
		this.setSize(new Dimension(474, 405));
	}

	/** Add Component Without a Layout Manager (Absolute Positioning) */
	private void addComponent(Container container,Component c,int x,int y,int width,int height)
	{
		c.setBounds(x,y,width,height);
		container.add(c);
	}

	//
	// TODO: Add any appropriate code in the following Event Handling Methods
	//
	private void serveradd_actionPerformed(ActionEvent e)
	{
		System.out.println("\nserveradd_actionPerformed(ActionEvent e) called.");
		// TODO: Add any handling code here

	}

	private void username_actionPerformed(ActionEvent e)
	{
		System.out.println("\nusername_actionPerformed(ActionEvent e) called.");
		// TODO: Add any handling code here

	}

	private void password_actionPerformed(ActionEvent e)
	{
		System.out.println("\npassword_actionPerformed(ActionEvent e) called.");
		// TODO: Add any handling code here

	}

	private void jList1_valueChanged(ListSelectionEvent e)
	{
		System.out.println("\njList1_valueChanged(ListSelectionEvent e) called.");
		if(!e.getValueIsAdjusting())
		{
			Object o = jList1.getSelectedValue();
			System.out.println(">>" + ((o==null)? "null" : o.toString()) + " is selected.");
			// TODO: Add any handling code here for the particular object being selected
			
		}
	}

	private void Connect_actionPerformed(ActionEvent e)
	{
		System.out.println("\nConnect_actionPerformed(ActionEvent e) called.");
		// TODO: Add any handling code here

	}

	private void disconnect_actionPerformed(ActionEvent e)
	{
		System.out.println("\ndisconnect_actionPerformed(ActionEvent e) called.");
		// TODO: Add any handling code here

	}

	//
	// TODO: Add any method code to meet your needs in the following area
	//






























 

//============================= Testing ================================//
//=                                                                    =//
//= The following main method is just for testing this class built.=//
//= After testing,you may simply delete it.                            =//
//======================================================================//
	public static void main(String[] args)
	{
		JFrame.setDefaultLookAndFeelDecorated(true);
		JDialog.setDefaultLookAndFeelDecorated(true);
		try
		{
			UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
		}
		catch (Exception ex)
		{
			System.out.println("Failed loading L&F: ");
			System.out.println(ex);
		}
		new FTPCLIENT();
	}
//= End of Testing =


}

Giblet

Make an instance of your FTPConnection class in the gui.

Have an onClick event which passes the values of the textboxes into your ftp methods.

onClick()
{
    ftp.login(usernamebox.getText(),passbox.getText());
}

or something like that.