I need to send a PDF file using JavaMail. The PDF is currently a byte[]. How do I get it into the DataSource?
byte[] pdffile = ....
messageBodyPart = new MimeBodyPart();
DataSource source = ???
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
multipart.addBodyPart(messageBodyPart);
Use javax.mail.util.ByteArrayDataSource:
DataSource source = new ByteArrayDataSource(pdffile, "application/pdf");
As you probably know, if the PDF is on the filesystem, it would be easier to the FileDataSource:
DataSource source = new FileDataSource(pdfpath);
jheddings answer seems correct to me, but I ll also add that if, by any chance, you are using Spring framework in your application, you could take advantage of the Spring MimeMessageHelper, which includes a nice addAttachment() method (and makes the rest of the message creation easier as well).
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