Return Binary from Database

Question

I am writing a program that allows a user to upload a file and store that file in the database. That works great. Getting that file to display correctly is not working as well.
I store, along with the binary data, the file type i.e. image/gif, application/pdf etc.
When I send the Binary Data to the client I use the method setContentType to set the content type to the correct type.
This works great for images and some other files (doc, xls) But will not work for exe, pdf and most others.
I want to know how to set the correct http headers that will allow the browser to think it is downloading the correct type of file as well to have the correct filename.
Any suggestions would be great.
Colin

Answer 1

Hey There.
Here is a snippit of servlet code that I have used to stream PDF's to a client browser. Works like a charm. I think your main problem might have been the ContentType, along with stream objects used.
Give it a try, and let me know how it works.
Regards,
Victor VanHerk
final static String CONTENT_TYPE = "application/pdf";
final static String document = "d:\\test.pdf";
HttpSession     session     = request.getSession();
// reset the response
response.reset();
response.setContentType(CONTENT_TYPE);
try{
     // Get streams
     FileInputStream fileInputStream = new FileInputStream(document);
     ServletOutputStream servletOutputStream = response.getOutputStream();
     // Init byte count and array
     int bytesRead = 0;
     byte byteArray[] = new byte[4096];
     // Read in bytes through file stream, and write out through servlet stream
     while((bytesRead = fileInputStream.read(byteArray)) != -1) {
          servletOutputStream.write(byteArray, 0, bytesRead);
     // Flush and close seat
     servletOutputStream.flush();
     servletOutputStream.close();
     fileInputStream.close();
}