Send an E-Mail with attachment using JAVA Mail API without storing in local machine

Question

I have report in my jsp page and I am writing that report in PDF Format. And I want to send the PDF as E-Mail with attachment, but I don\'t want store the file

Answer 1

You have to write your own implementation of javax.activation.DataSource to read the attachment data from an memory instead of using one of the included implementations (to read from a file, a URL, etc.). If you have the PDF report in a byte array, you can implement a DataSource which returns the byte array wrapped in a ByteArrayOutputStream.