Spring Boot Primer [Hands-On] Learn spring boot from the basics. An introduction to Spring Boot so you wont regret it (Tatsuya Tamura)（Z-Library）

【One-Line Pitch】 A hands-on, project-driven introduction to Spring Boot that walks you through building a real web application step by step, ideal for Java developers who want practical, executable examples rather than abstract theory. 【Book Arc】 - **Opening (~0%–9%)**: The author explains why most Spring books fail—lack of runnable code, oversimplified samples, and confusing DI explanations—and promises a week-long, project-based approach where you build one complete web application incrementally. - **Early (~9%–25%)**: Covers Spring fundamentals: what Spring is, its core modules (DI, AOP, Spring MVC, Spring Boot, Security, Data JDBC), and setting up the development environment with Eclipse/STS, Lombok, and project creation. - **Early (~25%–34%)**: Walks through creating a Spring Starter Project with essential libraries (DevTools, Lombok, Validation, JDBC, H2, Thymeleaf, Spring Web), explaining each dependency's purpose before moving to the first sample. - **Middle (~34%–47%)**: Introduces the MVC model and builds a "Hello World" app, then extends it to pass values from screen to controller using Thymeleaf and form handling—the first taste of real request/response flow. - **Late (~47%–100%)**: Progresses through advanced topics in order: DI lifecycle and pitfalls, data binding and validation, Spring AOP, Spring JDBC (CRUD, transactions), exception handling, Spring Security (authentication, CSRF, authorization), REST services, and testing. 【Key Takeaways】 - **Hands-on learning is the core method** (Opening): The book is structured around building one complete web application, adding features chapter by chapter, so you gain confidence through actual execution rather than passive reading. - **DI is the heart of Spring** (Early): Dependency Injection manages instances and is essential—without mastering it, using Spring is pointless; the book dedicates a full chapter to its lifecycle, scopes, and common pitfalls like singleton misuse. - **Spring Boot simplifies setup dramatically** (Early): Unlike traditional Spring MVC, Spring Boot comes pre-configured, so you can start developing immediately with minimal configuration—just modify one settings file when needed. - **MVC separates concerns cleanly** (Middle): Model handles logic, View displays HTML, Controller directs requests—this role division makes web apps maintainable and is foundational to all subsequent chapters. - **Thymeleaf replaces JSP for cleaner templates** (Early): As Spring Boot's standard template engine, Thymeleaf keeps HTML readable by avoiding embedded Java code, using `th:` attributes for dynamic values. - **Validation and data binding are practical essentials** (Late): The book covers form binding, error message customization, group validation, and internationalization—critical for real-world forms. - **AOP centralizes cross-cutting concerns** (Late): Aspect-Oriented Programming lets you keep common processes (like logging) separate from business logic, with pointcuts and Before/After/Around advice. - **Spring JDBC simplifies database access** (Late): Using JdbcTemplate and NamedParameterJdbcTemplate reduces boilerplate code for CRUD operations, with RowMapper and transaction support covered in depth. 【Reading Tips】 - **Read in order from Chapter 1** (Early): The book is explicitly structured to build on itself—each chapter adds a feature to the same application, so skipping ahead will leave you lost. - **Download sample code for each chapter** (Opening): If you're short on time, grab the start/end code per chapter to jump in mid-way, but still follow the progression for context. - **Deep-read Chapter 4 on DI** (Early): This is the most conceptually challenging part—pay close attention to lifecycle management, singleton pitfalls, and scope differences, as they underpin everything else. - **Skim environment setup if you're experienced** (Early): Chapters on Eclipse/STS installation and Lombok setup are straightforward—skip ahead if you already have a working Java environment. - **Practice the REST and Security chapters hands-on** (Late): These are the most job-relevant skills; actually implement login, CSRF protection, and REST endpoints rather than just reading. 【Coverage Limits】 The excerpts cover the book's structure and early-to-middle content (through MVC and Hello World), but detailed explanations of later chapters (AOP, JDBC, Security, REST, Testing) are only outlined in the table of contents, not fully excerpted.