显示为附件的内嵌图像：JavaMail

Question

I am trying to send an email with an inline image, but the image is getting send as an attachment instead of inline.

 MimeMessage mimeMessage = javaMailSender.createMimeMessage();
    try {
        String filename = "logo.jpeg";

        mimeMessage.setFrom(new InternetAddress("Bridge"));
        mimeMessage.setRecipient(Message.RecipientType.TO, new InternetAddress(to));
        mimeMessage.setSubject(subject);

        MimeMultipart multipart = new MimeMultipart();

        BodyPart messageBodyPart = new MimeBodyPart();
        messageBodyPart.setContent(content, "text/html");

        multipart.addBodyPart(messageBodyPart);
        messageBodyPart = new MimeBodyPart();

        DataSource fds = new ByteArrayDataSource(IOUtils.toByteArray(resourceFile.getInputStream()), MediaType.IMAGE_JPEG_VALUE);
        messageBodyPart.setDataHandler(new DataHandler(fds));
        messageBodyPart.setDisposition(MimeBodyPart.INLINE);
        messageBodyPart.setFileName(filename);
        messageBodyPart.setHeader("Content-ID", "<logoimg>");
        messageBodyPart.setHeader("Content-Type", MediaType.IMAGE_JPEG_VALUE);

        multipart.addBodyPart(messageBodyPart);

        mimeMessage.setContent(multipart);
        mimeMessage.saveChanges();

        javaMailSender.send(mimeMessage);
   }  catch (MailException | MessagingException | IOException e) {
        log.warn("Email could not be sent to user '{}'", to, e);
   }

And here is my HTML code for the image:

<img width="100" height="50" src="|cid:logoimg|" alt="phoenixlogo"/>

I have tried all the multipart types: "mixed", "relative", "alternative" but couldn't get it to work.

Here is image for same:

Answer 1

You don't want an inline image, you want an html body that references an attached image. For that you need a multipart/related message. See the JavaMail FAQ .

Answer 2

You need to add a separate MimeBodyPart : For Example

            BodyPart imgPart = new MimeBodyPart();

            DataSource ds = new FileDataSource("D:/image.jpg");
            imgPart.setDataHandler(new DataHandler(ds));
            imgPart.setHeader("Content-ID", "<the-img-1>");
            multipart.addBodyPart(imgPart);

Then in the html you refer to the Image as:

<br>" + "<img src=\"cid:the-img-1\"/><br/>