Java

Determine if Connected and Logged On

See more FTP Examples

The IsConnected property indicates whether or not the FTP component has a valid TCP/IP connection (and is logged on) to the FTP server. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkFtp2 ftp = new CkFtp2();

    ftp.put_Hostname("ftp.example.com");
    ftp.put_Username("mylogin");
    ftp.put_Password("mypassword");

    // Connect and login to the FTP server.
    success = ftp.Connect();
    if (success != true) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    // ...

    // At any point in an FTP session, the IsConnected property
    // can be checked to determine if the component has remained
    // connected to the FTP server.
    if (ftp.get_IsConnected() == true) {
        System.out.println("Connected!");
        }
    else {
        System.out.println("Not connected!");
        }

    // ...

    success = ftp.Disconnect();
  }
}