In play1, we can package the project to a war, then put it in a tomcat:
play war
But how to do the same in play2? play war
doesn't work, it reports war
is not a valid task.
as pointed out by @Freewind, officialy, it's not supported, this is because they need the Servlet 3.1 specifications to support all the nice websocket and other advanced features that play2 provides.
However, if you do not use that, there is a plugin on github to provide play war
and be able to deploy on some cloud servers, etc:
https://github.com/dlecan/play2-war-plugin/