Client Design in Java (Multiplayer Game)

Working on a browser game with a Java开发者_开发问答 server backend and I'm wondering.. what's the best web "client" framework, or whatever, to use to design the client itself included on the page they'd visit to play? Any guides out there I can find? Completely new to this and wondering what is the best thing to design for it. Going to hope to work with some minimal 3D objects.

Thanks