Spring - Introduction

Spring is an open source and  lightweight framework, initial version released in October 2002 by Rod Johnson and his team with following features.

Modular

     We can use the needed spring features in our application. It means like we can use spring IOC alone in our application or spring integration for integrating technique or spring MVC like this.

Non-Intrusive

     Because of Non-Intrusive, the application code need not to be extended with any spring framework class to get the features unlike in struts we should extend the Action class to create our controller class.