Create a webapp to the user's authorization. Using technology: Jetty + Dropwizard + Spring Security (spring 4) + AngularJS . (desirable java 8)
Create two folder and add right (admin/user).
In the future it will be Rest(I want make auth for rest) + Angular.js
It should not be a Spring Boot, it should be Dropwizard. The client part on should be implemented on Angular that only shows how the perform authentication through the Rest.