Introduction#

Spring Boot is a popular framework built on top of Spring, It is highly used for the rapid development of Java-based applications. With the help of Spring Boot, developers can focus more on building the application's business logic than wasting a lot of time in setting up and configuring the application.

If you are the one who is looking to master Spring Boot then this Spring Boot tutorial provides a comprehensive guide, progressing from fundamental concepts to advanced techniques for building production-ready systems.

Prerequisite of Spring Boot#

• Java and Object-Oriented Programming (OOP)
• Databases and SQL
• Basic Understanding of Web Development: Knowing how web applications work, including HTTP protocols, REST APIs, and basic front-end concepts, is helpful.

Master these Topics:#

Once you have covered the prerequisites, follow this table of contents. This provides a structured path to understanding Spring Boot, from core concepts to advanced concepts.

1. Getting Started with Spring Boot: Core Concepts
2. Spring MVC: Building Web Applications and RESTful APIs
3. Mastering Spring Data JPA: Repositories and Queries
4. Spring Boot Production-ready features
5. Spring Security Basics: Authenticating Requests and Understanding JWT
6. Spring Security Advance: JWT Token, OAuth2 Client authentication, and Role-based Authorization
7. Spring Boot Testing: Complete Unit and Integration Testing
8. Deploying Spring Boot applications to AWS with CI/CD
9. Aspect-Oriented Programming in Spring Boot: Concepts and Use Cases
10. Spring Boot Caching with Redis
11. Spring Boot Transactions: ACID Properties, Locking, and Concurrency
12. Setup Docker Compose for a basic Spring Boot Application
13. Spring Boot Microservices Concepts
14. Integrating Apache Kafka with Spring Boot

Getting Started with Spring Boot: Core Concepts#

1. Introduction to Spring Boot
2. Challenges of Spring framework and the need for Spring Boot
3. Spring Architecture
4. Spring IOC Container
5. Creating the First Spring Boot Project and understanding the project structure
6. Spring Boot Application Properties
7. Understanding Spring Beans
8. Dependency Injection
9. Spring Context
10. Spring Boot Annotations
11. Understanding Spring Boot Auto Configuration

Spring MVC: Building Web Applications and RESTful APIs#

1. Spring MVC Architecture
2. Controller Components
3. Restful API Development
4. Data Binding and Validation
5. Exception Handling with custom error pages
6. Interceptors

Mastering Spring Data JPA: Repositories and Queries#

1. Spring Data JPA Introduction
2. JPA Repository Interface
3. Entity Mapping
4. Fetching Strategies
5. Repositories and Query Methods in JPA
6. Setting up MySQL-DB with Spring Data JPA
7. JPQL and Native Queries
8. Paging and Sorting in Spring Data JPA
9. Optimistic and Pessimistic Locking
10. Transactions

Spring Boot Production-ready features#

1. Setup a Spring boot application with MVC and JPA
2. Spring boot Dev tools
3. Auditing and Advance Auditing with Hibernate Evers
4. Restclient
5. Logging in Spring boot
6. Spring boot Actuator
7. Swagger API Documentation

Spring Security Basics: Authenticating Requests and Understanding JWT#

1. Spring Security Basic Introduction
2. How Cross-Site Request Forgery (CSRF) attack is done
3. How Cross-Site Scripting (XSS) attack is done
4. SQL Injection
5. Internal Working of Spring Security Basic
6. Internal Working of Spring Security Advance
7. Configuring SecurityFilterChain
8. Understanding JWT
9. JWT Creation and Verification
10. Signup and Login using JWT
11. Authenticating requests using JWT Part 1
12. Authenticating requests using JWT Part 2
13. Spring Security Exception Handling
14. Recap Spring Security Internal Working

Spring Security Advance: JWT Token, OAuth2 Client authentication, and Role-based Authorization#

1. Spring Security Advance Introduction
2. JWT: Refresh Token and Access Token
3. Using Two Tokens instead of One
4. OAuth2 Client Authentication Part 1
5. OAuth2 Client Authentication Part 2
6. User Sessions management with JWT
7. Role-based Authorization
8. Granular Authorization with Authority
9. Security Methods Annotations

Spring Boot Testing: Complete Unit and Integration Testing#

1. Introduction to Testing in Spring Boot
2. Understanding JUnit and AssertJ
3. Unit Testing vs Integration Testing
4. Unit Testing the Persistence Layer
5. Setting Up TestContainer
6. Understanding Mockito
7. Unit Testing the Service Layer
8. Integration Testing the Presentation Layer
9. JaCoCo Test Report Generation

Deploying Spring Boot applications to AWS with CI/CD#

1. Introduction and Setup of Production Database with RDS in AWS
2. Spring Profiles
3. Deploy Spring Boot Application on Elastic Bean Stalk Service
4. Setup CI/CD with AWS Code Pipeline
5. Database Migration in production using Flyway

Aspect-Oriented Programming in Spring Boot: Concepts and Use Cases#

1. Introduction to Aspect-Oriented Programming
2. Declaring Pointcuts in AOP
3. Declaring Advice in AOP
4. Spring Proxy and Internal working of AOP
5. Real-world use cases of AOP

Spring Boot Caching with Redis#

1. Introduction to Caching
2. Spring Boot Default Caching
3. Redis Cache in Spring Boot

Spring Boot Transactions: ACID Properties, Locking, and Concurrency#

1. Database Transactions and ACID Properties in RDBMS
2. Concurrent Transaction Management and Transaction Isolation Levels
3. Transactional Annotation in Spring Boot
4. Optimistic and Pessimistic Transaction Locks in Spring Boot Data JPA

Setup Docker Compose for a basic Spring Boot Application#

1. How to set Docker Compose for a basic Spring Boot Application

Spring Boot Microservices Concepts#

1. Microservice Architecture
2. Service Discovery with Eureka
3. Spring Cloud API Gateway
4. API Gateway Filters and Authentication with Custom GatewayFilters
5. OpenFeign Microservice Communication
6. Circuit Breaker, Retry, and Rate Limiter with Resilience4J
7. Centralized Configuration Server using GitHub
8. Distributed Tracing using Zipkin and Micrometer
9. Centralized Logging with the ELK Stack

Integrating Apache Kafka with Spring Boot#

1. Introduction to Apache Kafka
2. Kafka Architecture
3. Installing Kafka and Kafka Visualisation Tool
4. Configuring Kafka with Spring Boot
5. Advance Kafka Configuration with Spring Boot
6. Kafka Schema registry with Confluent

Features of Spring Boot#

Spring Boot simplifies Java development by handling a lot of the heavy lifting behind the scenes. This means less setup and more coding. Here are some of the highlights:

• Auto-configuration: This is where the magic really happens. Spring Boot takes a look at what libraries you've added to your project (your dependencies) and automatically configures a bunch of stuff for you. No more endless XML files or tedious manual setups.
• Starter dependencies (aka "Starters"): These are like pre-packaged kits for common tasks. Need to build a web app? Just add the “spring-boot-starter-web” starter and boom! You've got everything you need to get started. No more hunting down individual libraries and worrying about compatibility.
• Embedded servers: Forget about setting up Tomcat or Jetty separately. Spring Boot comes with embedded servers built right in, so you can run your app directly from your IDE. It's incredibly convenient, especially during development.
• Production-ready features: When it's time to deploy your app to the real world, Spring Boot has your back. It includes features like metrics, health checks, and externalized configuration to make deployment and management much smoother. Think of it as having built-in monitoring and management tools ready to go.

If you are interested in building your career in Spring Boot, then checkout the Industry-favourite Spring Boot 0 to 100 course. This course has been recommended by senior SDE and CTOs in their team. It contains all the topics we have discussed above. And you also learn the best industry practices. Checkout the reviews on Reddit, Quora and Google. Happy Learning!