Re: servlet multiple loops, help please...

[Brian Sanders <brian.j.sanders@mindspring.com>]

You're seeing the servlet output 3 times because 3 separate requests are 
being made.  If you use IE 5.5, you'll see 2 requests.  This is the way 
Internet Explorer behaves when loading content with a plug-in.

For request #1, IE reads the content type to be PDF, so it closes that 
connection immediately.  Then, it sends another request where the 
User-Agent header has the value "contype".  The only thing you have to 
return for this request is the Content-Type header (e.g., call 
response.setContentType("application/pdf") then output nothing in the 
body).  The third request is actually from the plug-in.

 > And the output of this servlet is:
 >
 > 0
 >
 > 0
 >
 > 0
 >...
> 
> Another thing I notices is that: if I comment the following code:
> 
> response.setContentType("application/pdf");
> 
> then the problem is gone. I use PDF format because I am using iText tool 
> to general pdf file and print it.  Is it possible that since it takes 
> some time to open acrobat reader, it generates multiple threads by 
> itself?  I call the servlet directly from the location bar of the 
> Internet Explorer.

-- 
Brian Sanders
Java Developer