6th Edition Spring in Action by Craig Walls (published March 2022) is the latest update to this classic Java guide, covering Spring 5.3 Spring Boot 2.4 . Note that while the "In Action" series often separates Spring Boot Spring Boot in Action is currently only in its First Edition (2016) . For modern development, the Spring in Action 6th Edition is the de facto current resource for Boot-related content. Key Highlights of the 6th Edition Modern Focus : Deeply integrates Spring Boot and moves toward modern application design, including Reactive Programming with Project Reactor and WebFlux. New Content : Adds specific chapters for NoSQL databases (Cassandra and MongoDB), for reactive networking, and REST API security Kubernetes & Containers
Where to get it legitimately:
- Spring Boot Reference Documentation – Free, comprehensive, and always up-to-date at docs.spring.io
- "Spring Boot: Up and Running" by Mark Heckler (O'Reilly, 2021) – Covers Spring Boot 2.4, but concepts translate well
- "Learning Spring Boot 3.0" by Greg L. Turnquist (Packt, 2022) – Directly addresses Spring Boot 3
- Official Spring Guides – Hundreds of free, focused tutorials on spring.io/guides
Step 3: Read the book alongside the branches.
Buy the eBook from Manning (DRM-free, by the way). Read Chapter 3 ("Working with SQL databases"), then run git checkout chapter3 and execute ./mvnw spring-boot:run.
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