how to set and get header info?

[sachin yadav]

hi,


i want to put following in my one.jsp

response.setHeader("User", "admin");

and then the page will be redirected to two.jsp, where i am extracting this info.

String uname=request.getHeader("User");

but in two.jsp i am getting anull value for uname. what should i do?

[Christophe Verré]

This won't solve your problem but

1. You're setting a response header, maybe forwarding to another jsp file, and getting the request headers. That does not make much sense.

2. It does not sound appropriate to use http headers for this. Why don't you
use request attributes ?

[Ramesh Sankar]

use request.setAttribute("user","admin");
or request.setParameter("user","admin");

[Paul Clapham]

Setting a request header is not going to work either. Notice that sachin said "the page will be redirected". Redirecting causes the client browser to generate a new request, and the old request disappears.

The usual way to preserve information from one request to the next is to store it in the user's session. If that is not practical then another way to do it is to write the information out into hidden fields that will be submitted as part of the next request; for a redirect, this means something like appending "?User=admin" to the URL being redirected to.

[Bear Bibeault]

Originally posted by Ramesh Sankar:
use ... request.setParameter("user","admin");

There is no such method.