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HttpServlet

Posted on 2006-06-27
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Last Modified: 2011-04-14
I have a servlet which streams content to the brower using
response.setDateHeader("Last-Modified", DateUtils.now().getTime());
response.setHeader("Expires", "-1");
response.setContentType(contentTYpe);
response.setHeader("Content-Disposition", "attachment; filename=" +fileName);

I have an if condition which only does the above if there is content to stream. This content comes from the database.
If there is content it works as it should, ie displays a dialog window to open or save.

If there is no content then I just want to return from this servlet. What happens is that the browser points to this servlet

eg.

http://localhost:7001/cart/dowloadServlet

What i want is the original jsp to display where the user clicks to do the download.
Any ideas?
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Question by:inzaghi
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5 Comments
 
LVL 8

Accepted Solution

by:
colr__ earned 1500 total points
ID: 16993910
Can you not just redirect them to the original jsp url?

if (noContent){
response.sendRedirect("original.jsp");
return;
}
0
 

Author Comment

by:inzaghi
ID: 16993939
this would work but how come it does not automatically return control to the original jsp, similar to when you are asked to save/open the attachment.
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LVL 35

Assisted Solution

by:girionis
girionis earned 500 total points
ID: 16999333
This is probably be done because the jsp points to the servlet. You first go to the servlet, the browser sees that there is no content and it stays in the servlet.
0
 
LVL 8

Expert Comment

by:colr__
ID: 16999343
If the original page is called original.jsp, then control should be returned to that page with the above code. The save/open dialogue should only appear if a file is abouyt to be downloaded, but since ther isnt one (in the case where there is no content), then you'll have to select a different file, am I right? Does original.jsp not do this?
0
 
LVL 35

Expert Comment

by:girionis
ID: 17000759
:)
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