What pattern should I use

I receive client's request, and I should in term of different request's type, give the client different reply. What pattern or patterns should I apply.
[160 byte] By [weimenren] at [2007-9-30 20:31:20]
# 1
Delegate, controller and command are three that come to mind. Take a look at the book "Design Patterns" for more info.
mgumbs at 2007-7-7 1:20:56 > top of Java-index,Other Topics,Patterns & OO Design...
# 2
I think you can using filter to intercept every request and format the response according to the client's type.Hope this heps....daniel
ThinkMan at 2007-7-7 1:20:56 > top of Java-index,Other Topics,Patterns & OO Design...