How many types of modules are there in spring? Name them.

There are around twenty modules, which can be categorized into Core Container, Web, Data Access or Integration, Aspect Oriented Programming and Instrumentation and Test.

The modules are:

• Core module  
• Bean module
• SpEL module
• Context module
• JDBC (Java DataBase Connectivity)
• ORM (Object Relational Mapping)
• OXM (Object XML Mappers)
• JMS (Java Messaging Service)
• Transaction
• Web
• Web MVC
• Web Socket
• Web Portlet
• Aspect Oriented Programming (AOP)
• Instrumentation
• Test
• Messaging
• Aspects