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Adding Custom Data to Response Headers?

Saiprasad Natarajan
Greenhorn

Joined: Oct 27, 2010
Posts: 12

Hi

If i add a custom header to the HttpServletResponse object, like say,



and then do a response.SendRedirect(URL) to some other URL, will i be able to read this header value at that app?

I've tried this with 2 dummy servlets in different apps but doesn't seem to be working. Am i getting something wrong here or am i trying something which is not right?

At the redirected URL, i retrieve the headers using request.getHeader(headerName);

TIA
Ravi Kiran Va
Ranch Hand

Joined: Apr 18, 2009
Posts: 2234

I have tried this sample Program :



I have used JMeter tool to observe the Response Data from the Servlet See the screen shot attached )
What i want to say is , It works the custom response headers will also be added .






[Thumbnail for Post.jpeg]


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Ulf Dittmer
Marshal

Joined: Mar 22, 2005
Posts: 41906
    
  63
and then do a response.SendRedirect(URL) to some other URL, will i be able to read this header value at that app?

No. The response headers are read by the client and then discarded. (Besides, they're response headers, and thus not part of a request.) You'll need to put any data you want to reach the final destination as URL parameters.

Ravi Kiran Va wrote:...

There's no redirection here, so the example is not relevant.


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Saiprasad Natarajan
Greenhorn

Joined: Oct 27, 2010
Posts: 12

Thanks for the reply.

I am passing the data using query parameters but i was just wondering if there is a way to differentiate between a redirect and when someone accesses the app from the address bar directly.


Thanks
Ravi Kiran Va
Ranch Hand

Joined: Apr 18, 2009
Posts: 2234

Thanks ulf for the relavant answer . (There should be some clapping Icon on the Icons List )
 
 
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