Java Spring and Spring Boot: Building Modern Enterprise Applications and Microservices

5 days

Spring Boot has become the go-to framework for enterprise Java development, and for good reason. Its popularity stems from its ability to significantly simplify the development process while providing powerful features out of the box. Spring Boot’s opinionated approach to configuration eliminates much of the boilerplate code associated with setting up Spring applications, allowing developers to focus on business logic rather than infrastructure concerns.

In today’s fast-paced business environment, companies are constantly seeking ways to accelerate their development cycles without compromising on quality or scalability. Spring Boot addresses this need by offering rapid application development capabilities, seamless integration with a wide array of technologies, and built-in support for microservices architecture. These features make it an invaluable tool for businesses looking to stay competitive in the digital landscape.

Moreover, Spring Boot’s emphasis on convention over configuration and its robust ecosystem of starters and auto-configuration options make it exceptionally well-suited for building cloud-native applications. As organisations increasingly move towards cloud deployment and containerisation, the demand for developers skilled in Spring Boot continues to grow.

This course is designed to take you on a journey from understanding the core principles of Spring to mastering the intricacies of Spring Boot. You’ll learn how to leverage Spring Boot’s powerful features to build applications that are not only functional but also maintainable, testable, and ready for production deployment. By the end of this course, you’ll be equipped with the skills that are highly sought after in the enterprise Java development world, positioning you to take on challenging projects and advance your career.

Your Instructor

Your instructor for this course is Peter Munro, a seasoned IT trainer and software developer with over 20 years of experience in the field. Peter has worked with numerous Fortune 500 companies, helping them modernise their Java applications and adopt Spring technologies. His hands-on approach ensures that you’ll not only learn the theory behind Spring and Spring Boot but also gain practical, real-world experience. Peter’s goal is to help you and your team achieve new levels of efficiency and effectiveness in your Java development projects.

Course Outline

Module 1: Introduction to Spring Framework and Spring Boot

Understanding the Spring ecosystem and its evolution
Core concepts: Inversion of Control (IoC) and Dependency Injection (DI)
Introduction to Spring Boot and its benefits
Setting up your development environment (IDE, Maven/Gradle)
Creating your first Spring Boot application

Module 2: Spring Core and Dependency Injection

Understanding Spring beans and the application context
Types of dependency injection: constructor, setter, and field injection
Qualifiers and primary beans
Bean scopes and lifecycle
Using @Autowired, @Component, @Service, and other stereotypes

Module 3: Advanced Bean Configuration

Java-based configuration with @Configuration and @Bean
XML configuration (legacy approach)
Mixing Java and XML configurations
Conditional bean creation with @Conditional
Bean definition inheritance and factory beans

Module 4: Spring Boot Configuration and Profiles

Externalized configuration with application.properties and YAML
Using @ConfigurationProperties for type-safe configuration
Working with profiles for environment-specific settings
Spring Boot auto-configuration deep dive
Creating custom auto-configurations and starters

Module 5: Building Web Applications with Spring Boot

Introduction to Spring MVC architecture
Creating RESTful APIs with Spring Boot
Handling HTTP requests and responses
Input validation and error handling
Testing Spring Boot web applications

Module 6: Data Access with Spring Boot

Overview of Spring Data and its modules
Integrating with relational databases using Spring Data JPA
Working with JPATemplate for data access
Implementing transaction management
Data migration with Flyway or Liquibase

Module 7: Spring Boot Security

Implementing authentication and authorisation
Securing RESTful APIs with Spring Security
OAuth2 and JWT for stateless authentication
Method-level security and role-based access control
Best practices for securing Spring Boot applications

Module 8: Testing Spring Boot Applications

Unit testing with JUnit and Mockito
Integration testing with Spring Boot Test
Testing REST APIs with MockMvc
Performance testing and profiling Spring Boot applications
Test-Driven Development (TDD) in Spring Boot projects

Module 9: Spring Boot Actuator and Monitoring

Introduction to Spring Boot Actuator
Configuring and customising Actuator endpoints
Implementing health checks and custom metrics
Integrating with monitoring tools (e.g., Prometheus, Grafana)
Logging and tracing in Spring Boot applications

Module 10: Microservices with Spring Boot

Introduction to microservices architecture
Building microservices with Spring Boot
Service discovery and registration with Spring Cloud
Implementing API gateways and load balancing
Distributed tracing and centralised logging in microservices

Module 11: Event-Driven Architecture with Kafka

Introduction to Apache Kafka
Setting up Kafka with Spring Boot
Implementing producers and consumers
Stream processing with Kafka Streams
Event sourcing and CQRS patterns with Kafka

Module 12: Deployment and DevOps for Spring Boot Applications

Packaging Spring Boot applications for deployment
Containerisation with Docker
Deploying to cloud platforms (AWS, Azure, or Google Cloud)
Implementing Continuous Integration/Continuous Deployment (CI/CD) pipelines
Monitoring and scaling Spring Boot applications in production

Module 13: [Optional] Reactive Programming with Spring WebFlux

Introduction to reactive programming concepts
Building reactive APIs with Spring WebFlux
Working with reactive data repositories
Testing reactive applications
Performance considerations and best practices

Module 14: Capstone Project

Design and implement a full-fledged Spring Boot application
Apply microservices architecture and best practices
Implement security, monitoring, and deployment strategies
Present and defend your Spring Boot application architecture

Optional Module A: NoSQL with Spring Boot

Introduction to NoSQL databases
Working with MongoDB using Spring Data MongoDB
Implementing CRUD operations with MongoTemplate
Querying MongoDB with MongoRepository
Best practices for using NoSQL in Spring Boot applications

Appendix: Spring AMQP (Optional)

Introduction to message-oriented middleware
Setting up RabbitMQ with Spring Boot
Implementing producers and consumers with Spring AMQP
Message conversion and error handling
Integrating AMQP with Spring Boot applications

Conclusion

By the end of this course, you’ll have a deep understanding of the Spring Framework and Spring Boot, enabling you to build modern, efficient, and scalable Java applications. You’ll be well-equipped to tackle real-world enterprise development challenges and contribute significantly to your organisation’s software development efforts.

Mastering Spring and Spring Boot is a journey. This course will give you a solid foundation, but continuous learning and practice are key to becoming an expert Spring developer. Good luck on your Spring journey!