Ftp connection using java

Question

Hi All,
I need to upload a file through ftp connection uisng java calss. any one know please reply me
Thanks
K.Kalikumar

Answer 1

Hi Kali,
I have worked on similar issues sending you the code.. hope it should work. I had written a TelnetInterface class where I did all operation inside the constructor.
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.InputStream;
import java.io.PrintStream;
import org.apache.commons.net.telnet.TelnetClient;
public class TelnetInterface {
     private TelnetClient telnet = new TelnetClient();
     private InputStream in;
     private PrintStream out;
     private String prompt = ">";
     private boolean isConnected ;
public TelnetInterface(){
     public TelnetInterface(HttpServletRequest request) {
               HttpSession session = request.getSession();
               PropertyReader propReader = (PropertyReader)session.getAttribute("propReader");
               String host=null,user=null,password=null,port=null;
               int unixPort= 0;
//                Get Unix credentials
               if(propReader != null){
                    host=(String)propReader.getProperty("UNIX_HOST");
                    user=(String)propReader.getProperty("UNIX_UNAME");
                    password=(String)propReader.getProperty("UNIX_PWD");
                    port=(String)propReader.getProperty("UNIX_PORT");
                    unixPort = Integer.parseInt(port) ;
//                    Connect to the specified server
               System.out.println("Inside telnet Interface");
               try{
                    telnet.connect(host, unixPort);
                    isConnected = true;
                    in = telnet.getInputStream();
                    out = new PrintStream(telnet.getOutputStream());
//                    Log the user on
                    readUntil("login: ");
                    write(user);
                    System.out.println("user:"+ user);
                    readUntil("Password: ");
                    write(password);
                    System.out.println("password:"+ password);
                    sendCommand("su - loginuser");
                    su(" password");
               }catch (IOException e) {
                    e.printStackTrace();
                    isConnected = false;     
               }catch (Exception e){
                    e.printStackTrace();
     }