Adobe PDF direct open in internet explorer problem

Question

Hi all,
I have a problem when I want do download a pdf byte stream created by Jasper Reports. I read the necessary information out of my formbean (Struts). Here's the code from the jsp:
response.setContentType(runReportForm.getContentType());
String filename = runReportForm.getTechName() + "." + runReportForm.getMode();
response.setHeader("Content-Disposition", "attachment; filename='" + filename + "'\"");
byte[] bytes = runReportForm.getBytesOutput();
response.setContentLength(bytes.length);
ServletOutputStream ouputStream = response.getOutputStream();
try {
        ouputStream.write(bytes, 0, bytes.length);
        ouputStream.flush();
     ouputStream.close();
} catch (IOException e) {
}The content type for PDF is "application/pdf" or "application/octet-stream", of course.
Normally, it should open a download dialog with the question "Open" and "Save". In this download dialog is the Adobe icon displayed, too.
But in my case, I get the dialog with an empty (like unknown file format) icon, but the text says "Adobe Acrobat Document". When I click to open it directly it will open in a separately Adobe Acrobat window instead of displaying in the internet explorer. (Saving to the hard disk works fine).
Of course I have set the setting "display inside browser" in the options of my Acrobat Reader.
The same procedure with Excel (content type "application/vnd.ms-excel") makes no problems.
Thanks for any help.
Manuel

Answer 1

If you want to open the PDF in the browser you have to explicitely set the content type to "application/pdf", if you use "application/octet-stream" you'll always get the download box and when you choose to open from this box the reader will be used because the reader is configured to open PDF documents in the windows filetypes settings.