Using the FTP Session Log

The Chilkat FTP component can keep a session log if the KeepSessionLog property is turned on. This is helpful in debugging problems. Chilkat support will usually ask for a session log when working to resolve your problem, because it contains a log of the exact commands sent to the FTP server, and the exact responses received.

Download Chilkat Java Library

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[])
  {
    CkFtp2 ftp = new CkFtp2();

    bool success;

    //  Any string unlocks the component for the 1st 30-days.
    success = ftp.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        System.out.println(ftp.lastErrorText());
        return;
    }

    ftp.put_Hostname("www.example-code.com");
    ftp.put_Username("example-code.com");
    ftp.put_Password("****");

    //  Set the KeepSessionLog property in order to keep a session log.
    //  The session log will continuously grow in memory.  The
    //  ClearSessionLog method may be called to clear it.  The session
    //  logging may be turned on/off at any point.
    ftp.put_KeepSessionLog(true);

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

    //  Change to the remote directory where the existing file is located.
    success = ftp.ChangeRemoteDir("junk");
    if (success != true) {
        System.out.println(ftp.lastErrorText());
        return;
    }

    //  To clear the SessionLog at any point, call ClearSessionLog:
    //  call ftp.ClearSessionLog();

    //  Append moreHamlet.txt to hamlet.txt on the FTP server.
    const char * localFilename;
    localFilename = "moreHamlet.txt";
    const char * remoteFilename;
    remoteFilename = "hamlet.txt";

    success = ftp.AppendFile(localFilename,remoteFilename);
    if (success != true) {
        System.out.println(ftp.lastErrorText());
        return;
    }

    ftp.Disconnect();

    //  Display the entire session log:
    System.out.println(ftp.sessionLog());

    System.out.println("File Appended!");
  }
}