Book Image

Learning Spring Boot 3.0 - Third Edition

By : Greg L. Turnquist
Book Image

Learning Spring Boot 3.0 - Third Edition

By: Greg L. Turnquist

Overview of this book

Spring Boot 3 brings more than just the powerful ability to build secure web apps on top of a rock-solid database. It delivers new options for testing, deployment, Docker support, and native images for GraalVM, along with ways to squeeze out more efficient usage of existing resources. This third edition of the bestseller starts off by helping you build a simple app, and then shows you how to secure, test, bundle, and deploy it to production. Next, you’ll familiarize yourself with the ability to go “native” and release using GraalVM. As you advance, you’ll explore reactive programming and get a taste of scalable web controllers and data operations. The book goes into detail about GraalVM native images and deployment, teaching you how to secure your application using both routes and method-based rules and enabling you to apply the lessons you’ve learned to any problem. If you want to gain a thorough understanding of building robust applications using the core functionality of Spring Boot, then this is the book for you. By the end of this Spring Boot book, you’ll be able to build an entire suite of web applications using Spring Boot and deploy them to any platform you need.
Table of Contents (17 chapters)
1
Part 1: The Basics of Spring Boot
3
Part 2: Creating an Application with Spring Boot
8
Part 3: Releasing an Application with Spring Boot
12
Part 4: Scaling an Application with Spring Boot

Summary

In this chapter, we discovered the magic of Spring Boot and how it not only brings in Spring beans but also backs off in light of user code. We found out how Spring Boot starters make it easy to add various features of the Spring portfolio as well as some third-party libraries with some simple dependencies. We saw how Spring Boot leverages properties files, allowing us to override various settings of autoconfiguration. We also saw that we can even create our own properties. We learned that Spring Boot manages an entire suite of library dependencies, allowing us to delegate everything to the version of Spring Boot. We also saw how to override that on a one-off basis.

In the next chapter, we’ll discover how to apply the concepts from this chapter by building our very first Spring Boot 3 application, starting with the web layer. We’ll craft templates and JSON-based APIs, and even stir in a little JavaScript.