Having a hard time figuring out how to send dynamic data to a web-app's user without having to create a file & using a dynamic link to static content using java technology. (The main reasons for avoiding the file creation on disk are security and speed)
This is something I have previously done in python, but this web-app is intended to be strictly java technology for maintenance purposes.
After doing a few searches in google I haven't gotten any further. Has anyone done this before or has a good idea for a starting point?
( 4 months ago )
You can output any kind of content type from a servlet. Just set the headers right, and dump to the body of the request the content you want to send.
response.setHeader("Content-Disposition","attachment;filename="+ file);// generate the content and send it to response.getOutputStream()
This will set the content-type to an excel file, and force the browser to download the file.
As a bonus, you can tell your servlet to listen to a specific path, and set the link with a real filename.