Architecture of Spring Framework - Modularity and Spring Modules


NEW COURSE RELEASED! - 21 HOURS, 200+ VIDEOS - Master DevOps with Docker, Kubernetes and Azure DevOps


One of the most important features of the Spring framework is its modularity. It is not one big monolith framework. What is the architecture of Spring Framework? What are Spring Modules? How are they organized?

You will learn

  • What is the architecture of Spring Framework?
  • How is Spring Framework Modularized?
  • What are different Spring Modules?
  • Which modules provide which Spring Features like Dependency Injection and Auto wiring?
  • How can you develop applications with multiple layers with Spring?

Free Courses - Learn in 10 Steps

Spring Framework

This is the fifth article in a series of articles on Spring Framework:

Spring Architecture and Modules

Let’s look at the modules that are present in a typical Spring Project. image info

It is not organized as one big JAR file. It is composed of a large number of smaller JAR files.

Spring is organized into modules. Here is how Spring is organized conceptually: image info

Container

This is the most heavily used part of the Spring framework. This includes modules such as:

  • Beans: To manage the application dependencies
  • Core
  • Context: To maintain the application context

Database Access And Integration

Spring provide excellent options for implementing data and integration layers.

The important data access modules are:

  • JDBC : To talk to relational database using JDBC
  • ORM : Provides good integration with all ORM (Object Relational Mapping) frameworks, such as Hibernate and MyBatis.
  • JMS : If you want to talk to another application over a queue, JMS provides an excellent option. Spring has good integration with JMS.
  • OXM : This module provides good integration in scenarios where object to XML mappings are required.
  • Transactions : Transaction management is an important part of data access integration functionality. Ideally, you want the transaction to be fully successful, or completely rolled back. If a transaction has 4 steps and failed at the third step, the previous two successful steps must also be rolled back. Spring has great support for transaction management.

Web

Spring has very good support to develop your web layer:

  • Spring MVC : It is Spring’s own web framework
  • Struts : Spring provides good integration with Struts.

Cross Cutting Features

An application is typically developed in multiple layers. For example, a web application is often designed to have three layers: web, business and data:

image info

There are many things that are applicable to more than one layer. Those are called cross cutting concerns.

Unit Testing

One important cross cutting concern is unit testing. We want to be able to unit test code in all the three layers mentioned above. Spring Test framework provides good support for unit testing.

AOP

AOP stands for Aspect oriented programming. This module is useful for implementing features such as security and logging. Spring AOP provides basic AOP features.

Spring provides good integration with the AspectJ framework to do advanced AOP.

Do check out our video on the same topic:

image info

Summary

In this article, we had a brief look at the modular structure of the Spring framework. It is not a single monolith, but is organized as a set of small modules.

What to Learn Next?

NEW COURSE RELEASED! - 21 HOURS, 200+ VIDEOS - Master DevOps with Docker, Kubernetes and Azure DevOps


350,000 Learners are learning everyday with our Best Selling Courses : Spring Boot Microservices, Spring, Spring Boot, Web Services, Hibernate, Full Stack React, Full Stack Angular, Python, Spring Interview Guide, Java Interview, Java Functional Programming, AWS, Docker, Kubernetes, PCF, AWS Fargate and Azure


85,000 Subscribers are learning from our Free Videos on YouTube : JSP Servlets, Spring, Spring Boot, Spring MVC, Hibernate, Eclipse, Maven, JUnit, Mockito, Full Stack - React, Full Stack - Angular, Docker, Kubernetes, AWS, AWS Fargate, PCF and Azure


Here are the recommend articles to read next : Spring Interview Questions, Spring Boot Interview Questions, Microservices, Hibernate, Spring Security, REST API with Spring Boot, Full Stack with React, SOAP Web Services, Exception Handling, Embedded Servers, Spring Data Rest, Spring vs Spring MVC vs Spring Boot, Building Web Application and Spring Data JPA. You can checkout all our 100+ articles here - All Articles.


Do not know where to start your learning journey? Check out our amazing learning paths: Learning Path 01 - Spring and Spring Boot Web Applications and API Developer, Learning Path 02 - Full Stack Developer with Spring Boot, React & Angular, Learning Path 03 - Cloud Microservices Developer with Docker and Kubernetes, Learning Path 04 - Learn Cloud with Spring Boot, AWS, Azure and PCF and Learning Path 05 - Learn AWS with Microservices, Docker and Kubernetes


Related Posts

Docker Tutorial for Beginners - with Java and Spring Boot

Learn about Docker - What is Docker? Why Is Docker Popular? How to create Docker Image for a Java Spring Boot App?

Devops Tutorial | DevOps with Docker, Kubernetes and Azure DevOps

What is DevOps? How is it different from Agile? What are the popular DevOps Tools? What is the role of Docker, Kubernetes and Azure DevOps in DevOps. Let's get started with a simple usecase.

Deploy Java Spring Boot Applications to AWS, Azure, GCP with Docker and Kubernetes

In this article, we focus our attention on the cloud. How to learn the cloud and deploy Java Spring Boot Applications to AWS, Azure, GCP with Docker and Kubernetes?

Microservices Architectures - Non Functional Requirements - Performance

In this article, we explore an important non functional requirement called performance.

Spring Boot Tutorials for Beginners

At in28Minutes, we are creating a number of tutorials with videos, articles & courses on Spring Boot for Beginners and Experienced Developers. This resources will help you learn and gain expertise at Spring Boot.

Microservices with Spring Boot and Java - Part 1 - Getting Started

Let's learn the basics of microservices and microservices architectures. We will also start looking at a basic implementation of a microservice with Spring Boot. We will create a couple of microservices and get them to talk to each other using Eureka Naming Server and Ribbon for Client Side Load Balancing. In part 1 of this series, lets get introduced to the concept of microservices and understand how to create great microservices with Spring Boot and Spring Cloud.

20+ Spring Boot Projects with Code Examples

At in28Minutes, we have created more than 20 projects with code examples on Github. We have 50+ articles explaining these projects. These code examples will you learn and gain expertise at Spring Boot.

REST API Best Practices - With Design Examples from Java and Spring Web Services

Designing Great REST API is important to have great microservices. How do you design your REST API? What are the best practices?

Index - 500+ Videos

At in28Minutes, we are creating a number of tutorials with videos, articles & courses on Spring Boot for Beginners and Experienced Developers. Here's a list of video tutorials and courses for you