Sending an html email with an image in GAE
Question
When I send an e-mail currently from within GAE I receive the email with a Content-Transfer-Encoding of quoted-printable. I am looking to set this to base64. The quoted-printable would be find except the image is not displayed when I receive the email. As it is right now my html which looks like this:
String base64StringImg = Base64.encode(my byte array);
StringBuilder htmlBody = new StringBuilder();
htmlBody.append("<html>");
htmlBody.append("<body>");
htmlBody.append("<img src='data:image/png;base64,");
htmlBody.append(base64StringImg);
htmlBody.append("'/>");
htmlBody.append("<br/><br/>");
htmlBody.append("Hello " + name);
htmlBody.append("</body>");
htmlBody.append("</html>");
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(fromUser));
message.addRecipient(Message.RecipientType.TO, new InternetAddress(recipient));
message.setSubject(subject);
Multipart mp = new MimeMultipart();
BodyPart htmlPart = new MimeBodyPart();
htmlPart.setContent(htmlBody.toString(), "text/html; charset=UTF-8");
mp.addBodyPart(htmlPart);
message.setContent(mp);
Transport.send(message);
How can I send an html e-mail with an image in GAE? I have read the following two bug/feature requests which make it clear there are limitations.
http://code.google.com/p/googleappengine/issues/detail?id=198 http://code.google.com/p/googleappengine/issues/detail?id=965
1 answers
solution1
0 2012-03-22 14:40:15
HTML embedded images seem to be poorly supported in email clients: http://www.campaignmonitor.com/blog/post/1761/embedding-images-in-email/
What is supported are images HTML images attached to email: http://www.campaignmonitor.com/blog/post/1759/embedding-images-revisited/
However, as you noted with the link to the issue , the second option is poorly supported in GAE. What you could try is create by hand the mail content shown in second link.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.