The Google Web Toolkit (GWT) has attracted a lot of attention lately as a way to make it easier for developers to add AJAX Web 2.0 features to their applications. Like other approaches, the designers of GWT have tried to insulate developers from having to deal with the underlying JavaScript, which implements these features. GWT achieves this goal of simplifying the creation of advanced client-side JavaScript widgets by generating them from Java code.
Today’s leading web applications are increasingly built on Web 2.0 principles: rich user interface, lightweight integration of multiple data sources, rapid evolution of applications, and user control over both content and context. Web 2.0 promises to expand the functionality of core business applications, knit together multiple services, and deliver a feature-rich user interface to enhance the customer experience and employee productivity.
Stripes is a presentation framework for building web applications using the latest Java technologies. The main driver behind Stripes is that web application development in Java is just too much work! It seems like every existing framework requires gobs of configuration. Struts is pretty feature-light and has some serious architectural issues (see Stripes vs. Struts for details). Others, like WebWork 2 and Spring-MVC are much better, but still require a lot of configuration, and seem to require you to learn a whole new language just to get started.
Create a full working application in short time writing only POJOs! Roma will render your POJOs as Ajaxed Web Pages, will store your business POJOs in the database, etc.