How to add a user defined HTTP header field?

Hi, everyone!
I want to add a user defined HTTP header field to a HTTP
response header.
I use the following statements in testHeader.jsp
response.addHeader("myheader", "123");
response.sendRedirect("middleHeader.jsp");
in middleHeader.jsp,
out.print(request.getHeader("myheader"));
But the output in middleHeader.jsp is null!
How to add a user defined HTTP header field to a HTTP
response header? Are there some sample codes?
Cheers,
George

the send redirect actually creates a new request (through the client) and thus a new response
thus the headers you set in the response are gone for the next request/response
You can try servletDispatcher.forward

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