MIME Multipart Boundary and Preamble Properties

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Demonstrates the Boundary property, which gets or sets the raw boundary token of a multipart entity (without surrounding quotation marks), and UseMmDescription, which controls whether the conventional preamble text is emitted when serializing a multipart entity.

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Mime;

public class ChilkatExample {

    public static void main(String[] args) {
        Mime mime = new Mime();

        // Create a multipart/mixed entity.
        try {
            mime.newMultipartMixed();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Boundary is the raw boundary token, without surrounding quotation marks.  Chilkat quotes it
        // automatically in the serialized header when required.
        mime.setBoundary("example-boundary");

        // UseMmDescription controls whether the conventional preamble text
        // "This is a multi-part message in MIME format." is emitted.  The default is false.
        mime.setUseMmDescription(true);

        // Add a simple part so the multipart has content.
        Mime part = new Mime();
        try {
            part.setBodyFromPlainText("First part.");

            mime.appendPart(part);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Boundary = " + mime.getBoundary());

        String mimeStr;
        try {
            mimeStr = mime.getMime();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println(mimeStr);
    }
}