Save an Email Attachment using a Specific Filename

Demonstrates how to save an email attachment using a specific filename, regardless of the filename in the email.

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[])
  {
    //  Create a MailMan or Imap object first for the purpose
    //  of unlocking the component. (Only one is necessary)
    CkMailMan mailman = new CkMailMan();
    mailman.UnlockComponent("anything for 30-day trial");
    CkImap imap = new CkImap();
    imap.UnlockComponent("anything for 30-day trial");

    CkEmail email = new CkEmail();

    //  Load an email object containing attachments.
    //  This .eml can be downloaded from:
    //  http://www.example-code.com/testData/HtmlEmail.eml
    boolean success;
    success = email.LoadEml("HtmlEmail.eml");
    if (success != true) {
        System.out.println(email.lastErrorText());
        return;
    }

    //  List the attachment filenames:
    //  This email has two attachments: logo.jpg and faxCover.doc
    int i;
    for (i = 0; i <= email.get_NumAttachments() - 1; i++) {
        System.out.println(email.getAttachmentFilename(i));
    }

    //  Let's say we want to save the 1st attachment as "pic.jpg",
    //  and the 2nd attachment as "cover.doc".
    //  Call SetAttachmentFilename for both:
    email.SetAttachmentFilename(0,"pic.jpg");
    email.SetAttachmentFilename(1,"cover.doc");

    //  The SaveAttachedFile method allows you to specify the directory
    //  where the attachment is saved.  To save to the current working
    //  directory, pass a "." for the directory path.  This code
    //  saves each attachment to the current working directory:
    email.SaveAttachedFile(0,".");
    email.SaveAttachedFile(1,".");

    //  Alternatively, we could save all the attachments in a single
    //  call.  The argument to SaveAllAttachments is the directory
    //  path.  In this case, the filenames set by SetAttachmentFilename
    //  are used:
    email.SaveAllAttachments("myAttachments");

    System.out.println("Finished!");

  }
}