Writing different Content Types to Response

Question

I am writing the part of an application that will display documents that users have stored on the system. The types we allow or .tiff, , .PDF, Word, and Excel.
I am sending the contents of the file to the response with this code:
PrintWriter out = response.getWriter();
File file;
ServletContext sc = getServletContext();
String mimetype;               
file = new File(pathToFile);
mimetype = sc.getMimeType(pathToFile);
response.setContentType(mimetype);
// Read in the file and send chars to response
FileReader fReader = new FileReader(file);
char[] chars = new char[500];
while((fReader.read(chars)) != -1) {
     out.write(chars);
fReader.close();
out.flush();
out.close();The mime types I am using are
application/msword
application/vnd.ms-excel
application/pdf
image/tiff
Word works great. Excel sort of works. IE displays an error that data may be lost, but then displays the worksheet.
PDF half works. The table of contents displays in the left frame, but the right content frame is blank. And tiff only shows a distorted version of the image.
And it doesn't work in Firefox at all. I just get a blank frame regardless of the file type.
My question is, am I doing this correctly? Am I reading in the file and writing it back to the response the correct way? PDF and TIFF are working partially but not 100%. I feel like I am missing something.
Thanks,
Karl

Answer 1

Thanks a lot. It works perfectly now........in IE.
In Firefox PDF and images work ok, but for Word and Excel I get endless "Open With.." dialogs. Is this a plugin issue? I added the following line to my servlet with no change in result:
response.setHeader("Content-Disposition","inline");
Thanks,
Karl