Learning Spring Boot 4 - Fourth Edition

Build Java web apps swiftly with this fourth edition of the best-selling Spring Boot guide for beginners, updated and enhanced with defining features of Spring Boot 4

Key Features:

- Learn Spring Boot in a cohesive manner with this practical guide

- Discover popular Java developer tools such as GraalVM native images, serving up JSON, and more

- Build secure, observable, and scalable web applications from zero to production

Book Description:

Spring Boot 4 brings more than just the powerful ability to build secure web apps on top of a rock-solid database. It delivers Jackson integration, support for JSpecify, an enhanced retry mechanism, and updated actuator defaults, along with ways to squeeze out more efficient usage of existing resources.

This fourth 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. Then, you'll familiarize yourself with the ability to go "native" and release using the latest version of GraalVM. As you advance, you'll explore reactive programming and get a taste of scalable web controllers and data operations.

Additionally, this edition includes brand-new topics, including virtual threads, concurrency, and observability, as well as building intelligent applications with Spring AI.

If you want to gain a thorough understanding of building robust, modern applications using the core functionality of Spring Boot, then this is the book for you. By the end, you'll be able to build an entire suite of web applications using Spring Boot and deploy them to any platform you need.

What You Will Learn:

- Create powerful, production-grade web applications with minimal fuss

- Support multiple environments with one artifact, and add production-grade support

- Enhance the security model of your apps

- Build intelligent applications with Spring AI

- Write everything from lightweight unit tests to fully running embedded web container integration tests

- Take advantage of the enhanced observability capabilities of Spring Boot 4

- Get a glimpse of reactive programming and decide if it's the right approach for you

Who this book is for:

This book is for both novices and experienced Spring developers looking to learn how to build applications without wasting time on infrastructure and other tedious details. Working knowledge of the Java programming language is assumed.

Table of Contents

- Core Features of Spring Boot

- Creating Web and API Applications with Spring Boot

- Querying for Data with Spring Boot

- Securing an Application with Spring Boot

- Testing with Spring Boot

- Configuring an Application with Spring Boot

- Releasing an Application with Spring Boot

- Going Native with Spring Boot

- Writing Reactive Web Controllers

- Working with Data Reactively

- Virtual Threads in Java and Spring Boot

- Messaging and Asynchronous Communication in Spring Boot 4

- Observability with Spring Boot 4

- Building Intelligent Applications with Spring AI

- What's New in Spring Boot 4