Introduction to Advanced Spring Boot Concepts

Welcome to this guide to mastering projects with Spring Boot 3.0. This book isn’t a manual; instead, it serves as your roadmap to navigate the complex world of modern Java development. Spring Boot is not a newcomer but a mature framework that has been simplifying Java development for years. But in the 3.0 release, Spring Boot has made the development process even more seamless and more convenient to use. Java 17 is the minimum version of Java required with Spring Boot 3.0, and Java 19 is also among the versions supported, which ensures that developers will be able to utilize the latest features or improvements of Java. Spring Boot 3.0 presents AppStartup – a feature to register callbacks in different stages of application startup, aiding with tasks such as resource initialization and configuration error checking. In addition to that, there is a new algorithm in Spring Boot 3.0 for dependency resolution to help increase the start speed and lower the memory footprint, so more complex projects are handled more efficiently.

By the time you finish reading this book, you will not just be familiar but proficient, efficient, and, most importantly, capable of implementing Spring Boot effectively in real-world scenarios.

So, what can you expect in this chapter? We will delve into why Spring Boot stands out as the preferred framework for projects. We’ll explore its advantages and the new features of Spring Boot 3.0. This chapter lays the foundation for using Spring Boot 3.0 more effectively, ensuring you can tackle complex projects confidently and skillfully. Let’s dive in!

In this chapter, we’re going to cover the following main topics:

• Why use Spring Boot for advanced projects?
• A brief overview of what’s to come