Module 1

Getting Started

4 articles

01Spring Boot Roadmap: Basics to Advanced3 min read

02Why Spring Boot: From Servlets to Spring MVC to Spring Boot11 min read

03Project Setup and Layered Architecture8 min read

04Maven and Its Build Lifecycle11 min read

Module 2

Controllers

1 article

05Controller Annotations: @RestController, @RequestMapping and Request Data10 min read

Module 3

Beans & Dependency Injection

3 articles

06Beans, the IoC Container and the Bean Lifecycle11 min read

07Dependency Injection: Field, Setter and Constructor12 min read

08Bean Scopes: Singleton, Prototype, Request and Session12 min read

Module 4

Configuration

3 articles

09Choosing Beans at Runtime with @Value8 min read

10Conditional Beans with @ConditionalOnProperty7 min read

11Profiles: One Codebase, Many Environments8 min read

Module 5

AOP, Transactions & Async

6 articles

12Aspect-Oriented Programming (AOP)11 min read

13@Transactional Part 1: ACID and How It Works8 min read

14@Transactional Part 2: Transaction Managers and Propagation8 min read

15@Transactional Part 3: Isolation Levels9 min read

16@Async Part 1: Thread Pools and @Async8 min read

17@Async Part 2: Pitfalls, Return Types and Exceptions7 min read

Module 6

Handling Requests & Responses

5 articles

18Custom Interceptors and Custom Annotations9 min read

19Filters vs Interceptors10 min read

20HATEOAS: Links in REST Responses6 min read

21ResponseEntity and HTTP Status Codes7 min read

22Exception Handling: @ExceptionHandler, @ControllerAdvice and @ResponseStatus9 min read

Module 7

Data Access with JPA

10 articles

23JPA Part 1: From JDBC to JdbcTemplate8 min read

24JPA Part 2: Setup, Architecture and the Entity Lifecycle8 min read

25JPA Part 3: The First-Level Cache5 min read

26JPA Part 4: The Second-Level Cache8 min read

27JPA Part 5: Mapping Entities to Tables8 min read

28JPA Part 6: One-to-One Mappings9 min read

29JPA Part 7: One-to-Many, Many-to-One and Many-to-Many9 min read

30JPA Part 8: Derived Queries, JPQL, Pagination and the N+1 Problem9 min read

31JPA Part 9: Native Queries and the Criteria API8 min read

32JPA Part 10: The Specification API4 min read

Module 8

Security

10 articles

33Web Attacks: CSRF, XSS, CORS and SQL Injection8 min read

34Spring Security Part 1: Architecture and Setup5 min read

35Spring Security Part 2: Creating and Storing Users6 min read

36Spring Security Part 3: Form Login (Stateful)7 min read

37Spring Security Part 4: Basic Authentication (Stateless)5 min read

38Spring Security Part 5: JWT Explained9 min read

39Spring Security Part 6: JWT Authentication12 min read

40Spring Security Part 7: OAuth 2.0 Explained7 min read

41Spring Security Part 8: OAuth2 Login10 min read

42Spring Security Part 9: Method Security with @PreAuthorize and @PostAuthorize6 min read

Module 9

Production Readiness

2 articles

43Actuator: Health, Metrics and Monitoring9 min read

44@ConfigurationProperties: Typed Configuration6 min read