The seven modules of the Spring framework

Spring is an open source framework created to address the complexity of enterprise application development. One of the chief advantages of the Spring framework is its layered architecture, which allows you to be selective about which of its components you use while also providing a cohesive framework for J2EE application development.

The Spring framework is a layered architecture consisting of seven well-defined modules. The Spring modules are built on top of the core container, which defines how beans are created, configured, and managed, as shown in the following figure.


Each of the modules (or components) that comprise the Spring framework can stand on its own or be implemented jointly with one or more of the others. The functionality of each component is as follows:

* The core container: The core container provides the essential functionality of the Spring framework. A primary component of the core container is the BeanFactory, an implementation of the Factory pattern. The BeanFactory applies the Inversion of Control (IOC) pattern to separate an application’s configuration and dependency specification from the actual application code.

* Spring context: The Spring context is a configuration file that provides context information to the Spring framework. The Spring context includes enterprise services such as JNDI, EJB, e-mail, internalization, validation, and scheduling functionality.

* Spring AOP: The Spring AOP module integrates aspect-oriented programming functionality directly into the Spring framework, through its configuration management feature. As a result you can easily AOP-enable any object managed by the Spring framework. The Spring AOP module provides transaction management services for objects in any Spring-based application. With Spring AOP you can incorporate declarative transaction management into your applications without relying on EJB components.

* Spring DAO: The Spring JDBC DAO abstraction layer offers a meaningful exception hierarchy for managing the exception handling and error messages thrown by different database vendors. The exception hierarchy simplifies error handling and greatly reduces the amount of exception code you need to write, such as opening and closing connections. Spring DAO’s JDBC-oriented exceptions comply to its generic DAO exception hierarchy.

* Spring ORM: The Spring framework plugs into several ORM frameworks to provide its Object Relational tool, including JDO, Hibernate, and iBatis SQL Maps. All of these comply to Spring’s generic transaction and DAO exception hierarchies.

* Spring Web module: The Web context module builds on top of the application context module, providing contexts for Web-based applications. As a result, the Spring framework supports integration with Jakarta Struts. The Web module also eases the tasks of handling multi-part requests and binding request parameters to domain objects.

* Spring MVC framework: The Model-View-Controller (MVC) framework is a full-featured MVC implementation for building Web applications. The MVC framework is highly configurable via strategy interfaces and accommodates numerous view technologies including JSP, Velocity, Tiles, iText, and POI.

Spring framework functionality can be used in any J2EE server and most of it also is adaptable to non-managed environments. A central focus of Spring is to allow for reusable business and data-access objects that are not tied to specific J2EE services. Such objects can be reused across J2EE environments (Web or EJB), standalone applications, test environments, and so on, without any hassle.


Technorati tags: Spring Framework

43 thoughts on “The seven modules of the Spring framework

  1. This is the most simple and best description of Java-Spring i’ve come across – kudos !!

  2. whoah this blog is magnificent i love reading your posts.
    Stay up the good work! You understand, lots of persons are searching around for this info,
    you could aid them greatly.

  3. Magnificent site. A lot of helpful information here. I am sending it
    to a few pals ans also sharing in delicious. And certainly,
    thanks on your effort!

  4. If you currently smoke and vape, focus on getting rid of the smoking cigarettes practice and changing it completely with vaping.

  5. Hi there Yahoo works perfectly in my situation but
    your site is loading steadily which took approximately
    a few minutes to load, I am not sure if it is
    my very own problem perhaps site problems.
    Anyway, I appreciate you for putting up an extraordinarily excellent article.
    I’m guessing it really has been necessary to lots of individuals who came at this point.
    This is undoubtedly incredibly good what you actually have done
    and would like to discover posts from your site.
    To get more information through content which you
    post, I actually have saved this url.

  6. The best way to tackle the problem of sleep disorder is not with potentially dangerous artificial substances.
    Still, even with some successful studies, not all experts are willing to endorse melatonin as sleep aid.
    She sees our animals long-dead, little children who
    I can not identify, perhaps our children when they were young, and she sees people who visit after they have left.

  7. Thank you for every other magnificent article.
    The place else could anyone get that kind of information in such a perfect
    means of writing? I’ve a presentation next week, and I’m at the search
    for such info.

  8. You can certainly see your enthusiasm in the article you write.
    The world hopes for more passionate writers like you who are not afraid
    to mention how they believe. At all times go after your heart.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: