Day 1: Introduction to Spring & Spring Boot

Topics Covered:
• What is Spring Framework?
• Problems with traditional Java development
• Introduction to Spring Boot
• Advantages of Spring Boot
• Spring Boot Architecture
• Setting up development environment

Hands-on:
• Install tools (Spring Tool Suite / IntelliJ / Eclipse)
• Create first Spring Boot project

Outcome:
• Understand why Spring Boot is used
• Able to create a basic project

Day 2: Spring Boot Project Structure & Basics

Topics Covered:
• Understanding project structure
• @SpringBootApplication annotation
• Main class execution flow
• application.properties / application.yml
• Running application

Hands-on:
• Create Hello World application

Outcome:
• Understand project flow and basic annotations

Day 3: REST API Development

Topics Covered:
• What is REST?
• HTTP methods (GET, POST, PUT, DELETE)
• @RestController, @GetMapping, @PostMapping
• Request & Response handling
• Path variables & request parameters

Hands-on:
• Create REST APIs (Get and Add data)

Outcome:
• Build basic REST APIs

Day 4: Dependency Injection & Beans

Topics Covered:
• IoC (Inversion of Control)
• Dependency Injection
• @Component, @Service, @Repository
• @Autowired
• Bean lifecycle

Hands-on:
• Create service layer
• Use dependency injection

Outcome:
• Understand layered architecture

Day 5: Database Integration (Spring Data JPA)

Topics Covered:
• Introduction to JPA & Hibernate
• Entity class (@Entity)
• Repository interface (JpaRepository)
• CRUD operations
• Database configuration

Hands-on:
• Connect to database
• Perform CRUD operations

Outcome:
• Store and retrieve data

Day 6: Exception Handling & Validation

Topics Covered:
• Exception handling in Spring Boot
• @ControllerAdvice, @ExceptionHandler
• Validation using @Valid
• Common annotations (@NotNull, @Size)

Hands-on:
• Add validation to APIs
• Handle exceptions globally

Outcome:
• Build robust applications

Day 7: Mini Project + Deployment Basics

Topics Covered:
• Mini project (Student/Employee Management System)
• API testing using Postman
• Packaging (JAR)
• Deployment basics

Hands-on:
• Complete mini project with CRUD, DB, validation