(Java) FTP Upload / Download to a BinData Object

Demonstrates how to FTP upload the contents of a BinData object, and FTP downloads to the a BinData object.

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux, Solaris Java Libs for Android

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[])
  {
    // This example assumes Chilkat Ftp2 to have been previously unlocked.
    // See Unlock Ftp2 for sample code.

    CkFtp2 ftp = new CkFtp2();

    ftp.put_Hostname("www.my-ftp-server.com");
    ftp.put_Username("mFtpLogin");
    ftp.put_Password("myFtpPassword");

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

    // Authenticate with the FTP server.
    success = ftp.LoginAfterConnectOnly();
    if (success != true) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    CkBinData bdA = new CkBinData();
    bdA.LoadFile("qa_data/jpg/penguins.jpg");

    // Upload the contents of bdA to the FTP server.
    String remoteFilename = "penguins.jpg";
    success = ftp.PutFileBd(bdA,remoteFilename);
    if (success != true) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    // Download...
    CkBinData bdB = new CkBinData();
    success = ftp.GetFileBd(remoteFilename,bdB);
    if (success != true) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    // Verify that bdA and bdB have the exact same contents.
    System.out.println("size of bdA: " + bdA.get_NumBytes());
    if (bdA.ContentsEqual(bdB) == true) {
        System.out.println("Contents are equal. Success.");
        }
    else {
        System.out.println("Contents are NOT equal.  Failed.");
        }

    ftp.Disconnect();
  }
}