How to attach a file to an HTML email using Apache Commons Email

Question

I'm using Apache Commons Email 1.1 and I can't figure out how to attach a file to an HtmlEmail. If I run the code below, I get an email with an attachment, but the HTML message comes across as an attachment also.

If I don't call email.attach() the HTML message come through as you would expect, but I need both the HTML message to come through and the attachment. What am I missing?

  HtmlEmail email = new HtmlEmail();
  email.setHostName("localhost");
  email.addTo("[email protected]", "Test");
  email.setFrom("[email protected]", "Test App");
  email.setSubject("Test message");
  email.setHtmlMsg("<div style='font-size: 20px; color: green;'>This is html email</div>");

  EmailAttachment attachment = new EmailAttachment();
  attachment.setPath(pdfPath);
  attachment.setDisposition(EmailAttachment.ATTACHMENT);
  email.attach(attachment);

  email.send();

Answer 1

email.attach(new ByteArrayDataSource(pdfBytes, "application/pdf"),
      "document.pdf", "Document description",
       EmailAttachment.ATTACHMENT);

this works with commons-email 1.1.

pdfBytes should be a byte[] containing the bytes of the pdf document. If that doesn't suit you, you can try other DataSource implementations, but I can't guarantee they'd work (although they should).

(The one above is org.apache.commons.mail.ByteArrayDataSource)