GAE (Google App Engine) is the cloud computing platform from Google that provides the infrastructure for deploying your web applications. In this recipe, we'll look at how Roo simplifies developing an application for GAE. We'll also see how a Roo-scaffolded GWT application is created and deployed on GAE. In the Deploying Spring Web MVC applications on GAE recipe, we'll see a Spring Web MVC application that can be deployed on GAE.
If you only want to run the GWT application locally using App Engine SDK for Java, then you don't need to sign up with Google App Engine and create an application identifier. If you want to deploy the application on GAE, follow the steps mentioned here to create an application identifier for your application.
Sign-up for a free Google App Engine account by going to the following URL: http://appengine.google.com. Once you are signed in, you'll see the following welcome page:
Now, you need to create an application identifier...