Spring Framework is an application container for Java that supplies many useful features, such as – Inversion of Control, Dependency Injection, abstract data access, transaction management, and more. It was conceived in 2002 in response to industry complaints that the Java EE specification was sorely lacking and very difficult to use. It was first major released in 2004.
Spring Framework is a productivity framework. It makes developing applications of all types rapidly with modular concepts and testable code easier. It abstracts away the concepts of “requests” and “responses” and enables you to write application code that can be utilized from many different interfaces. When used properly, Spring Framework is the most powerful tool in your Java development toolbox.