Grails is a powerful Groovy-based web application framework for the JVM built on top of Spring Boot. Grails was previously known as “Groovy on Rails”.
The Grails web framework has been designed according to the MVC paradigm. Grails is built on top of and is part of the Java platform. This lets you to easily integrate with Java libraries, frameworks and existing code bases.
This is free and open source software.
- Spring MVC application. It’s built on top of Spring Boot and leverages Spring Boot’s time-saving features, such as Spring-powered dependency injection
- Controllers – uses controllers to implement the behavior of web pages.
- Views – supports JSP and GSP.
- Dynamic tag libraries – provides a large number of tag libraries out of the box.
- Model – the domain model in Grails is persisted to the database using GORM.
- Scaffolding – supports scaffolding to support CRUD operations (Create, Read, Update, Delete).
- Legacy Database Models – persistence mechanism in GORM is implemented via Hibernate.
- Seamlessly and transparently integrates and interoperates with Java, the JVM, and existing Java EE containers.
- Development-time reloading agent that supports the dynamic reloading of code changes, thereby reducing the number of container restarts in the development environment.
- Built-in testing framework.
- Plugin library – extends and enhances the Grails framework.
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