Link frameworks?

Question

Java

Hello, Habrasobshchestvo!
I would like to ask your little advice. I do not even know where to start. In general, they gave me a TK (web application). Use GWT to select a file; Spring to upload the file to the server. Well, then logic ... logic ... logic ...
So. Can't bind GWT correctly. If instead of GWT you simply use Spring-view to select a file - everything is without problems - it is selected, loaded.
I have not worked with frameworks and only understand. Already three hundred times I tried to rebuild the project, played with the mapping - all in stupidity.
Every time I start with this project (3 Mb). Then I try to “fasten” GWT instead of the file download page and it doesn’t come out.
Actually, I would very much like to be prompted to the right idea; there may be some algorithm how to correctly “replace” one with another; or what to read, well, in general, everything, everything, everything that you can say.
In no case do I ask you to write something for me or do it (after all, my TK :)), but I will be very grateful for any advice.
Thank you.

Answer 1

Try the steps from here . I got it all right in time.