Grails in Action is a comprehensive look at Grails for Java developers. It covers the nuts and bolts of the core Grails components and is jam-packed with tutorials, techniques, and insights from the trenches.
The book starts with an overview of Grails and how it can help you get your web dev mojo back. Then it walks readers through a Twitter-style social networking app-built in Grails, of course-where they implement high-interest features like mashups, AJAX/JSON, animation effects, full text search, rounded corners, and lots of visual goodness. The book also covers using Grails with existing Java technology, like Spring, Hibernate, and EJBs.