Best Open Source Java Web Frameworks

Spring
Spring is an open-source application framework built on the Java platform. It is excellent programming and configuration model for modern Java-based enterprise applications. It is supported across platforms, and it's released under Apache License 2.0 in June 2003. It provides extensions for the development of web applications on top of the Java EE platform.

Features Of Spring

It provides foundational support for JDBC, JPA, JMS.
It provides a spring MVC web application.
It provides the support of a RESTful web service framework.
It provides the features of dependency injection.
It provides a consistent transaction management interface.

Play
Play is an open-source, lightweight framework. It is based on Java and Scala frameworks. It is a web-friendly framework architecture. It utilizes minimum resource consumption like Central processing unit (CPU), memory for highly scalable applications. It is released under Apache 2 License in 2007. It is built to fulfill the needs of modern web and mobile apps.

Features Of Play

It is a Secure module that provides simple user authentication.
It supported JSON and XML parser and marshallers.
It provides automatic file upload functionality.
It provides multi-environment configuration awareness.
It provides by default RESTful APIs.

Dropwizard
Dropwizard is another open-source Java framework. It is developed by Yammer. It comes with high-performance RESTful backends. It utilizes the Jackson library is used to perform all the JSON processing. It provides reliable implementations of everything a production-ready web application needs. It saves time for maintenance. It is released under the Apache License, Version 2.0.

Features Of Dropwizard

It provides support for application metrics.
It provides the facility to debug the application as the main program from within the IDE.
It used Jersey to write clean, testable classes.
It is also available on Maven Central.
It is a lightweight framework that enables you to deploy your Java project.