Hi,
I am using Tomcat 7.0.47 on windows 7 with JDK 1.7.
I want to achieve session replications on multiple subdomains. If I have
a domain as xyz.example.com and abc.example.com, then I would like to
store session cookie on "example.com" and hence then I would be able to
access same session on both domains. By default session cookie is set on
whole domain, if I access xyz.example.com then session cookie will be
set on this domain.
I went through the documentation for Tomcat 7 and found that in
<Context> element type I can add attribute like "sessionCookieDomain". I
can easily set this attribute to base domain like ".example.com" and
this works like charm.
But my requirement is slightly different. I have single tomcat serving
multiple domains. They all different base domains as well. So hardcoding
would not help me out here.
So I tried following.
In docs I found this link,
http://tomcat.apache.org/tomcat-7.0-doc/config/context.html. It says
that className attribute can be set for context.
So I wrote my own class MyStandardContext which extends
org.apache.catalina.core.StandardContext. I overridden public String
getSessionCookieDomain() method. I want to return base domain of the URL
from this domain so that tomcat will set cookie on this domain. But to
my surprise I do not have access to Request URI. If I could get access
to this URI somehow then I would be able to extract base domain. It is
not possible. is it?
I also tried adding multiple hosts in conf/server.xml under <Engine>.
This loads context multiple times, which I do not wish.
My question is there any way I can get access to request URI in
MyStandardContext? Or is there any configuration which forces tomcat to
set cookie on base domain instead full domain?
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