Authors and publishers use GitHub to host the actual code samples used in their books.

While you should not look for PDFs on GitHub, you look for the official source code repositories. Publishers and authors host the companion code for their books publicly on GitHub. This allows you to clone, run, and experiment with the projects locally. How to Find Official Repositories

: GitHub actively removes repositories that violate Digital Millennium Copyright Act (DMCA) notices, meaning links break constantly. The Right Way to Use GitHub for Spring Boot

: Get chapters of books as they are being written directly from the publisher.

You will not find a legitimate, legal PDF of the 6th edition on GitHub. Manning Publications (the publisher) actively files DMCA takedowns for copyrighted material. If you find a repository claiming to host the full PDF, it is either:

: Deep integration of Project Reactor and Spring WebFlux for building non-blocking, asynchronous applications.

Instead, this guide explores how to leverage official GitHub resources, understand the core concepts of Spring Boot, and find legitimate ways to access the best learning materials. 📌 The Reality of Book PDFs on GitHub

GitHub is a platform for hosting code, but some users illegally upload copyrighted PDFs. Why Avoid Pirated PDFs?

此外,还有一个早期的 spring-boot-in-action-samples 仓库(https://github.com/habuma/spring-boot-in-action-samples),对应的是2015年出版的《Spring Boot in Action》第一版。该仓库的代码与书中内容基本一致,但与当前Spring Boot 2.4/3.x版本存在较大差异,仅适合用于学习演进历史或对照阅读。