adding vaadin ui to existing java web app

General
1

I am working to create a UI using Vaadin, now I want to add this to an existing java web app.
Do I simply need to add the Vaadin jar file, and the java files of vaadin to that web app?

Or is there some procedure to follow, when doing this?

Thanks,
Arvind.

2

You need the Vaadin jar, modifications to your web.xml and a file that extends Vaadin’s Application class. Check:
https://vaadin.com/book/-/page/getting-started.first-project.html