To deploy your app to App Engine, you will need to register a project to create your project ID, which will determine the URL for the app.
In the Cloud Platform Console, go to the Projects page and select or create a new project.
Note the project ID you created above, and enter it in src/main/webapp/WEB-INF/appengine-web.xml. You can also set the app version in this file.
Upload your application to Google App Engine by invoking the following command.
Your app is now deployed and ready to serve traffic at http://<YOUR_PROJECT_ID>.appspot.com/.