Sending a data structure as an attachment via JavaMail

[fred2028]

Hi, I've managed to send an email with a file as an attachment through JavaMail. However, I'd like to send a data structure (array, vector, etc.) as the attachment instead. One way of course is to export the data structure as a file and then attach that file, however that seems kind of redundant. Is there a way to directly parse the data structure as an attachment? My current partial code for sending an email with an attachment is

public static void sendMail() throws Exception {
		String mailhost = "mailserver.asdasdasd.com";
		String from = "fred_liu@asdasdas.com";
		String sendTo[] = { "fred_liu@dfasfsdfs.com" };
		String sendCC = "";
		String subject = "";
		String message = "";
		String attachment = "C:\\fred.txt";

		Properties prop = System.getProperties();
		Session session = Session.getInstance(prop, null);
		Message msg = new MimeMessage(session);
		prop.put("mail.smtp.host", mailhost);
		msg.setFrom(new InternetAddress(from));
		for (String to : sendTo) {
			msg.setRecipients(Message.RecipientType.TO,
					InternetAddress.parse(to, false));
			if (sendCC != null && sendCC.length() > 0)
				msg.setRecipients(Message.RecipientType.CC,
						InternetAddress.parse(sendCC, false));
			msg.setSubject(subject);
			msg.setSentDate(Calendar.getInstance().getTime());

			MimeBodyPart messageBodyPart = new MimeBodyPart();

			messageBodyPart.setContent(message, "text/html");
			Multipart multipart = new MimeMultipart();

			multipart.addBodyPart(messageBodyPart);
			
			// Attachment
			messageBodyPart = new MimeBodyPart();
			DataSource source = new FileDataSource(attachment);
			messageBodyPart.setDataHandler(new DataHandler(source));
			messageBodyPart.setFileName(attachment);
			multipart.addBodyPart(messageBodyPart);

			msg.setContent(multipart);
			Transport.send(msg);
		}
	}

[fred2028]

bump bumpbump bump

[DIego912]

Try serializing the object...