Spring Framework

Overview

• Spring Ecosystem
• Spring Framework
• Spring Boot
• Spring Boot Roadmap (2026): From Basics to Cloud-Native Microservices

Phase 1 — Foundations

• Spring Framework with Maven
• Inversion of Control
• Bean
• Dependency Injection
  • Types of Dependency Injection
  • Immutability Promotion of Constructor Injection
• Qualifier
• Core Annotations
• SpringBootApplication Annotation
• Spring Boot Annotations Cheat Sheet
• Spring Boot Starters
• How Spring Boot Simplifies the Configuration Process
• Profile Annotation
• Spring MVC
• Controller and RestController
• Bean Validation
• Database Integration
• Spring Data JPA
• Hot Reload
• API Documentation

Phase 2 — Building Real APIs

• REST APIs in Spring Framework
• Creating a RESTful API using Spring Boot
• Global Exception Handling
• Custom Error Responses
• API Versioning Strategies
• Pagination, Filtering & Sorting
• Authentication & Authorization
• JWT & Intro to OAuth2 / OpenID Connect
• Spring Security
• Caching

Phase 3 — Advanced & Cloud-Ready

• Spring Boot Dynamic DataSource Routing with AWS RDS
• Aggregating Data from Multiple Services for a Single REST API Request
• Spring Cloud
  • Spring Cloud and AWS