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

Adding Spring Security to our project

Before we can do anything with Spring Security, we must add it to our project.

To add Spring Security to our already drafted app, we can easily use the same tactic from the previous chapters:

  1. Visit start.spring.io.
  2. Enter the same project artifact details as before.
  3. Click on DEPENDENCIES.
  4. Select Spring Security.
  5. Click on EXPLORE.
  6. Look for the pom.xml file and click on it.
  7. Copy the new bits onto the clipboard. Watch out! Spring Security has both a starter as well as a test module.
  8. Open up our previous project inside our IDE.
  9. Open our pom.xml file and paste the new bits into the right places.

Hit the refresh button in the IDE, and we’re ready to go!

Out of the box, we can run the application we have built up to this point. The exact same web app backed by Spring Data JPA is runnable…and it will be locked down.

Kind of.

When Spring Boot detects Spring Security on the path, it...