Benefits of Spring framework:

Spring can effectively organize your middle tier objects as given in the diagram above, whether or not you select to use EJB. Applications create using Spring are easy to test.

• Spring can facilitate good programming practice by encouraging coding to interfaces rather than to operation.
• Spring gives a consistent framework for data access, whether using O/R mapping frameworks or JDBC like Hibernate, JDO or TopLink. Spring ORM support for hibernate remove the code size by almost a half and gives additional benefits such as consistent exception, easier testing hierarchy and management of Hibernate sources. Spring exceptions are unchecked and hence you do not have to create any try{} finally{} and catch{} semantics and also you may manage the transactions declaratively via Spring transaction management.