GWT follows MVC. If you have the model ready, I do not see any problem integrating with GWT. Of course it is easy for me to
say so
GWT exchanges data with the server in the form of POJOs via asynchronous calls. Under the hood it is finally a
servlet. Unfortunately, not being a Struts developer, I am unable to comment more, except that you can try posting the question in our Struts forum with a link to this
thread for clarification of your problem.