Java

Create a multipart/related MIME Entity

Demonstrates the Chilkat Mime.NewMultipartRelated method, which initializes the object as an empty multipart/related entity. It takes no arguments; the primary part and its related resources are then appended.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: multipart/related ties a primary part to the resources it references — most commonly an HTML body and the inline images it embeds via cid: references. Unlike a plain attachment, a related image is displayed within the message rather than listed separately. The HTML part comes first, followed by each referenced resource with a matching Content-ID.

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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;

    //  Demonstrates the Mime.NewMultipartRelated method, which initializes the object as an empty
    //  multipart/related entity, clearing any existing content.  It takes no arguments.

    CkMime mime = new CkMime();

    success = mime.NewMultipartRelated();
    if (success == false) {
        System.out.println(mime.lastErrorText());
        return;
        }

    //  multipart/related groups a primary part with the resources it references, such as an HTML body
    //  and the inline images it displays.
    CkMime htmlPart = new CkMime();
    success = htmlPart.SetBodyFromHtml("<html><body><img src=\"cid:logo\"></body></html>");
    if (success == false) {
        System.out.println(htmlPart.lastErrorText());
        return;
        }

    success = mime.AppendPart(htmlPart);
    if (success == false) {
        System.out.println(mime.lastErrorText());
        return;
        }

    success = mime.AppendPartFromFile("qa_data/logo.png");
    if (success == false) {
        System.out.println(mime.lastErrorText());
        return;
        }

    System.out.println("Number of parts: " + mime.get_NumParts());
  }
}