This Spring Boot, JPA/Hibernate & Microservices – Job-Oriented Professional Training Program is designed to provide practical, industry-oriented training in Java backend development, Spring Boot, REST API development, JPA/Hibernate, database integration, Spring Security, microservices architecture, API Gateway, service discovery, messaging, Docker, Kubernetes, testing, and cloud-native application development.

The course takes learners from Spring Boot fundamentals to production-oriented microservices development. Students will build RESTful backend applications, integrate relational databases using JPA/Hibernate, implement authentication and authorization, design distributed microservices, and deploy applications using modern container and cloud technologies.

The program emphasizes hands-on coding, real-world scenarios, debugging, API development, database design, microservices implementation, testing, containerization, and an end-to-end enterprise project.

Students should have:

Java Programming

• ☑ Core Java fundamentals
• ☑ Object-Oriented Programming
• ☑ Classes and objects
• ☑ Inheritance
• ☑ Polymorphism
• ☑ Abstraction
• ☑ Interfaces
• ☑ Exception handling
• ☑ Collections
• ☑ Generics
• ☑ Java 8 features
• ☑ Lambda expressions
• ☑ Stream API

Database

• ☑ Basic SQL
• ☑ Tables and relationships
• ☑ SELECT, INSERT, UPDATE and DELETE
• ☑ JOIN operations
• ☑ Basic database concepts

Web Fundamentals

• ☑ Basic HTTP concepts
• ☑ HTTP methods
• ☑ JSON
• ☑ REST API fundamentals
• ☑ Client-server architecture

Recommended

• ☑ Basic Git knowledge
• ☑ Basic Linux/command-line knowledge
• ☑ Basic Maven knowledge

Recommended: Learners should have completed Core Java or have equivalent Java programming experience.

Java Development

• ☑ JDK 17 LTS or later
• ☑ IntelliJ IDEA
• ☑ Eclipse
• ☑ Visual Studio Code – optional

Build Tools

• ☑ Apache Maven
• ☑ Gradle – optional

Spring Development

• ☑ Spring Boot
• ☑ Spring Initializr
• ☑ Spring Tool Suite – optional

Database

Install at least one:

• ☑ MySQL
• ☑ PostgreSQL

Database clients:

• ☑ MySQL Workbench
• ☑ DBeaver
• ☑ pgAdmin – optional

API Development & Testing

• ☑ Postman
• ☑ cURL
• ☑ Swagger / OpenAPI

Version Control

• ☑ Git
• ☑ GitHub account
• ☑ GitHub Desktop – optional

Microservices

• ☑ Docker
• ☑ Docker Compose
• ☑ Apache Kafka
• ☑ RabbitMQ – optional
• ☑ Redis – optional

Kubernetes

• ☑ kubectl
• ☑ Minikube or Kind
• ☑ Docker Desktop with Kubernetes – optional 

Introduction to Spring

• ☑ What is Spring Framework?
• ☑ Spring architecture
• ☑ Spring modules
• ☑ Advantages of Spring
• ☑ Spring vs traditional Java applications

Dependency Injection

• ☑ Dependency Injection
• ☑ Inversion of Control
• ☑ IoC Container
• ☑ Bean lifecycle
• ☑ ApplicationContext
• ☑ Bean configuration
• ☑ Component scanning

Spring Annotations

• ☑ @Component
• ☑ @Service
• ☑ @Repository
• ☑ @Controller
• ☑ @Autowired
• ☑ @Configuration
• ☑ @Bean

Practical Labs

• ☑ Create Spring application
• ☑ Configure beans
• ☑ Implement Dependency Injection
• ☑ Build layered application 

Introduction to Spring Boot

• ☑ What is Spring Boot?
• ☑ Spring vs Spring Boot
• ☑ Spring Boot architecture
• ☑ Spring Boot Starter dependencies
• ☑ Spring Initializr
• ☑ Auto-configuration
• ☑ Spring Boot application lifecycle

Configuration

• ☑ application.properties
• ☑ application.yml
• ☑ Environment-specific configuration
• ☑ Profiles
• ☑ Configuration properties
• ☑ Environment variables

Spring Boot Application

• ☑ Project structure
• ☑ Main application class
• ☑ Dependency management
• ☑ Embedded servers
• ☑ Application startup

Practical Labs

• ☑ Create Spring Boot project
• ☑ Configure application properties
• ☑ Create multiple environments
• ☑ Run Spring Boot application 

REST Fundamentals

• ☑ REST architecture
• ☑ HTTP methods
• ☑ GET
• ☑ POST
• ☑ PUT
• ☑ PATCH
• ☑ DELETE
• ☑ HTTP status codes
• ☑ JSON

Spring REST

• ☑ @RestController
• ☑ @RequestMapping
• ☑ @GetMapping
• ☑ @PostMapping
• ☑ @PutMapping
• ☑ @DeleteMapping
• ☑ @RequestBody
• ☑ @PathVariable
• ☑ @RequestParam
• ☑ @RequestHeader

API Design

• ☑ REST endpoint design
• ☑ Request/response models
• ☑ DTOs
• ☑ API versioning concepts
• ☑ Pagination
• ☑ Sorting
• ☑ Filtering

Practical Project

• ☑ Build Employee REST API
• ☑ Implement complete CRUD operations
• ☑ Test APIs using Postman 

ORM Fundamentals

• ☑ What is ORM?
• ☑ JDBC vs JPA vs Hibernate
• ☑ JPA architecture
• ☑ Hibernate architecture
• ☑ Entity lifecycle

Entity Mapping

• ☑ @Entity
• ☑ @Table
• ☑ @Id
• ☑ @GeneratedValue
• ☑ @Column
• ☑ @Transient

Relationships

• ☑ One-to-One
• ☑ One-to-Many
• ☑ Many-to-One
• ☑ Many-to-Many
• ☑ @JoinColumn
• ☑ @JoinTable

Spring Data JPA

• ☑ Repository interfaces
• ☑ JpaRepository
• ☑ CrudRepository
• ☑ Query methods
• ☑ Custom queries
• ☑ JPQL
• ☑ Native SQL

Practical Labs

• ☑ Create entity models
• ☑ Implement database CRUD
• ☑ Implement relationships
• ☑ Create custom repository queries 

Persistence Context

• ☑ Persistence context
• ☑ Entity states
• ☑ First-level cache
• ☑ Dirty checking
• ☑ Entity lifecycle

Fetching

• ☑ Lazy loading
• ☑ Eager loading
• ☑ N+1 query problem
• ☑ Fetch joins
• ☑ Entity graphs

Transactions

• ☑ Transaction fundamentals
• ☑ @Transactional
• ☑ Commit
• ☑ Rollback
• ☑ Transaction propagation
• ☑ Isolation levels

Performance

• ☑ Query optimization
• ☑ Pagination
• ☑ Batch processing
• ☑ Hibernate caching concepts

Practical Labs

• ☑ Identify N+1 problems
• ☑ Optimize JPA queries
• ☑ Implement transactional services 

Validation

• ☑ Bean Validation
• ☑ @Valid
• ☑ @NotNull
• ☑ @NotBlank
• ☑ @Size
• ☑ @Email
• ☑ Custom validation

Exception Handling

• ☑ Exception hierarchy
• ☑ Custom exceptions
• ☑ @ExceptionHandler
• ☑ @ControllerAdvice
• ☑ Global exception handling
• ☑ Standard error responses

Practical Labs

• ☑ Implement request validation
• ☑ Create global exception handler
• ☑ Design standardized API error responses

Security Fundamentals

• ☑ Authentication
• ☑ Authorization
• ☑ Security filters
• ☑ Password hashing
• ☑ Role-based access

Spring Security

• ☑ Spring Security architecture
• ☑ Security configuration
• ☑ User authentication
• ☑ Roles and authorities
• ☑ PasswordEncoder

JWT

• ☑ JWT fundamentals
• ☑ Access tokens
• ☑ Token validation
• ☑ JWT authentication flow
• ☑ Refresh token concepts
• ☑ Stateless authentication

Practical Project

• ☑ Build login API
• ☑ Implement JWT authentication
• ☑ Secure REST endpoints
• ☑ Implement role-based authorization 

Microservices

• ☑ What are microservices?
• ☑ Monolithic vs Microservices
• ☑ Benefits and challenges
• ☑ Microservices architecture
• ☑ Service boundaries
• ☑ Bounded contexts
• ☑ Database-per-service

Microservices Design

• ☑ Independent deployment
• ☑ Service ownership
• ☑ API contracts
• ☑ Fault isolation
• ☑ Scalability
• ☑ Distributed transactions

Communication

• ☑ Synchronous communication
• ☑ REST communication
• ☑ Asynchronous communication
• ☑ Event-driven architecture

Practical

• ☑ Convert monolithic application into microservices
• ☑ Define service boundaries
• ☑ Create independent Spring Boot services

Spring Cloud

• ☑ Introduction to Spring Cloud
• ☑ Spring Cloud architecture
• ☑ Cloud-native applications

Service Discovery

• ☑ Service discovery concepts
• ☑ Eureka fundamentals
• ☑ Eureka Server
• ☑ Eureka Client
• ☑ Service registration
• ☑ Service lookup

Load Balancing

• ☑ Client-side load balancing
• ☑ Service instances
• ☑ Request distribution
• ☑ Fault tolerance concepts

Practical Lab

• ☑ Build service registry
• ☑ Register microservices
• ☑ Implement service-to-service discovery 

API Gateway

• ☑ API Gateway concepts
• ☑ Spring Cloud Gateway
• ☑ Routing
• ☑ Predicates
• ☑ Filters
• ☑ Authentication at gateway
• ☑ Request transformation

Centralized Configuration

• ☑ Configuration management
• ☑ Spring Cloud Config
• ☑ Config Server
• ☑ Config Client
• ☑ Environment-specific configuration

Practical Lab

• ☑ Create API Gateway
• ☑ Route requests to microservices
• ☑ Configure centralized application properties
• ☑ Implement gateway-level security

Service Communication

• ☑ REST-based communication
• ☑ OpenFeign
• ☑ WebClient
• ☑ Request/response patterns

Resilience

• ☑ Timeouts
• ☑ Retries
• ☑ Circuit breakers
• ☑ Fallback mechanisms
• ☑ Rate limiting concepts

Resilience4j

• ☑ Circuit Breaker
• ☑ Retry
• ☑ Rate Limiter
• ☑ Bulkhead
• ☑ TimeLimiter

Practical Labs

• ☑ Implement Feign clients
• ☑ Configure circuit breaker
• ☑ Implement retry and fallback
• ☑ Handle service failures

Event-Driven Architecture

• ☑ Synchronous vs asynchronous communication
• ☑ Event-driven architecture
• ☑ Messaging concepts
• ☑ Producers and consumers

Apache Kafka

• ☑ Kafka architecture
• ☑ Topics
• ☑ Partitions
• ☑ Producers
• ☑ Consumers
• ☑ Consumer groups
• ☑ Offsets

Spring Kafka

• ☑ Kafka producer
• ☑ Kafka consumer
• ☑ Message serialization
• ☑ Event processing

RabbitMQ

• ☑ RabbitMQ fundamentals
• ☑ Exchanges
• ☑ Queues
• ☑ Routing
• ☑ Acknowledgements

Practical Lab

• ☑ Build event-driven microservices
• ☑ Publish domain events
• ☑ Consume events asynchronously

Database-per-Service

• ☑ Database ownership
• ☑ Service-specific databases
• ☑ Data consistency

Distributed Transactions

• ☑ Distributed transaction challenges
• ☑ ACID vs distributed systems
• ☑ Saga pattern
• ☑ Choreography
• ☑ Orchestration
• ☑ Eventual consistency

Practical

• ☑ Implement order workflow
• ☑ Coordinate multiple services
• ☑ Handle transaction failures 

Unit Testing

• ☑ JUnit 5
• ☑ Assertions
• ☑ Parameterized testing
• ☑ Test lifecycle

Mockito

• ☑ Mocking
• ☑ Stubbing
• ☑ Verification
• ☑ Mock dependencies

Spring Boot Testing

• ☑ @SpringBootTest
• ☑ Controller testing
• ☑ Service testing
• ☑ Repository testing

API Testing

• ☑ Postman
• ☑ Integration testing
• ☑ API test cases

Practical Labs

• ☑ Write service-layer tests
• ☑ Mock dependencies
• ☑ Test REST APIs
• ☑ Build integration tests 

Docker

• ☑ Container fundamentals
• ☑ Dockerfile
• ☑ Spring Boot containerization
• ☑ Docker images
• ☑ Docker Compose
• ☑ Container networking
• ☑ Environment configuration

Kubernetes

• ☑ Kubernetes fundamentals
• ☑ Pods
• ☑ Deployments
• ☑ Services
• ☑ ConfigMaps
• ☑ Secrets
• ☑ Ingress
• ☑ Scaling

Practical Labs

• ☑ Dockerize Spring Boot applications
• ☑ Run multiple microservices using Docker Compose
• ☑ Deploy microservices to Kubernetes
• ☑ Configure application properties and secrets 

Spring Boot Actuator

• ☑ Actuator fundamentals
• ☑ Health checks
• ☑ Metrics
• ☑ Application information
• ☑ Monitoring endpoints

Logging

• ☑ Logging fundamentals
• ☑ SLF4J
• ☑ Logback
• ☑ Structured logging
• ☑ Centralized logging concepts

Monitoring

• ☑ Prometheus
• ☑ Grafana
• ☑ Application metrics
• ☑ JVM metrics
• ☑ Microservice monitoring

Distributed Tracing

• ☑ Distributed tracing concepts
• ☑ Trace IDs
• ☑ Correlation IDs
• ☑ Request tracking

Practical Labs

• ☑ Configure Actuator
• ☑ Monitor Spring Boot services
• ☑ Create Grafana dashboards
• ☑ Implement centralized logging concepts

Git

• ☑ Git fundamentals
• ☑ Branching
• ☑ Pull Requests
• ☑ Code reviews
• ☑ Git workflows

CI/CD

• ☑ Continuous Integration
• ☑ Continuous Delivery
• ☑ Pipeline architecture
• ☑ Build automation
• ☑ Automated testing

Jenkins / GitHub Actions

• ☑ Build Spring Boot application
• ☑ Run unit tests
• ☑ Package application
• ☑ Build Docker image
• ☑ Push image to registry
• ☑ Deploy application

Practical Lab

• ☑ Build complete CI/CD pipeline
• ☑ Automate Spring Boot build
• ☑ Containerize application
• ☑ Deploy microservices 

🚀 Enterprise E-Commerce Microservices Application

Students will design and implement a complete production-style microservices application.

Microservices

• ☑ User Service
• ☑ Product Service
• ☑ Inventory Service
• ☑ Order Service
• ☑ Payment Service
• ☑ Notification Service
• ☑ API Gateway
• ☑ Service Discovery
• ☑ Configuration Server

Technologies

• ☑ Java
• ☑ Spring Boot
• ☑ Spring Data JPA
• ☑ Hibernate
• ☑ Spring Security
• ☑ JWT
• ☑ Spring Cloud
• ☑ OpenFeign
• ☑ Resilience4j
• ☑ Apache Kafka
• ☑ MySQL / PostgreSQL
• ☑ Redis – optional
• ☑ Docker
• ☑ Kubernetes
• ☑ Prometheus
• ☑ Grafana

Project Workflow

Client → API Gateway → Microservices → Database

Order Service → Kafka → Payment / Inventory / Notification Services

Project Tasks

• ☑ Design microservices architecture
• ☑ Define service boundaries
• ☑ Create REST APIs
• ☑ Implement JPA/Hibernate persistence
• ☑ Implement database relationships
• ☑ Implement JWT authentication
• ☑ Configure service discovery
• ☑ Configure API Gateway
• ☑ Implement OpenFeign communication
• ☑ Implement circuit breaker
• ☑ Implement Kafka events
• ☑ Implement distributed transaction concepts
• ☑ Write unit and integration tests
• ☑ Dockerize microservices
• ☑ Deploy services to Kubernetes
• ☑ Configure monitoring
• ☑ Implement CI/CD

What You Will Learn

By completing this course, students will be able to:

• ☑ Develop enterprise applications using Spring Boot
• ☑ Build production-style REST APIs
• ☑ Implement layered backend architecture
• ☑ Work with Spring Data JPA
• ☑ Use Hibernate effectively
• ☑ Design database relationships
• ☑ Implement transactions
• ☑ Optimize JPA/Hibernate queries
• ☑ Implement validation and exception handling
• ☑ Secure APIs using Spring Security and JWT
• ☑ Design microservices architecture
• ☑ Implement service discovery
• ☑ Build API Gateway
• ☑ Implement inter-service communication
• ☑ Use OpenFeign
• ☑ Implement resilience using Resilience4j
• ☑ Build event-driven applications using Kafka
• ☑ Understand Saga and distributed transaction concepts
• ☑ Test Spring Boot applications
• ☑ Containerize applications using Docker
• ☑ Deploy microservices using Kubernetes
• ☑ Implement monitoring and observability
• ☑ Build CI/CD pipelines
• ☑ Develop a complete enterprise microservices project 

Programming

• ☑ Java
• ☑ Java 8+
• ☑ Java 17 LTS

Spring Ecosystem

• ☑ Spring Framework
• ☑ Spring Boot
• ☑ Spring Data JPA
• ☑ Hibernate
• ☑ Spring Security
• ☑ Spring Cloud
• ☑ Spring Cloud Gateway
• ☑ Spring Cloud Config
• ☑ Spring Cloud OpenFeign

Microservices

• ☑ REST APIs
• ☑ Service Discovery
• ☑ API Gateway
• ☑ Circuit Breaker
• ☑ Distributed Transactions
• ☑ Event-Driven Architecture

Messaging

• ☑ Apache Kafka
• ☑ RabbitMQ – optional

Database

• ☑ MySQL
• ☑ PostgreSQL
• ☑ JPA
• ☑ Hibernate
• ☑ SQL

Testing

• ☑ JUnit 5
• ☑ Mockito
• ☑ Spring Boot Test
• ☑ Postman

Containerization

• ☑ Docker
• ☑ Docker Compose

Orchestration

• ☑ Kubernetes
• ☑ kubectl
• ☑ Minikube / Kind

Monitoring

• ☑ Spring Boot Actuator
• ☑ Prometheus
• ☑ Grafana
• ☑ Logging
• ☑ Distributed tracing concepts

DevOps

• ☑ Git
• ☑ GitHub
• ☑ Maven
• ☑ Jenkins / GitHub Actions
• ☑ CI/CD

After completing this program, learners should be able to design, develop, test, secure, containerize and deploy enterprise-grade Spring Boot applications and microservices.

Learners will gain practical experience in Spring Boot, JPA/Hibernate, REST APIs, Spring Security, JWT, Spring Cloud, API Gateway, service discovery, Kafka, Docker, Kubernetes, testing, monitoring and CI/CD.

Final Skill Path

Core Java → Spring Framework → Spring Boot → REST APIs → JPA/Hibernate → Database → Spring Security → JWT → Microservices → Spring Cloud → API Gateway → Service Discovery → Kafka → Resilience → Docker → Kubernetes → Testing → Monitoring → CI/CD → Enterprise Project

• ☑ Java Backend Developer
• ☑ Spring Boot Developer
• ☑ Java Developer
• ☑ Spring Boot Backend Engineer
• ☑ Software Engineer – Java
• ☑ Java Microservices Developer
• ☑ Microservices Developer
• ☑ Backend Software Engineer
• ☑ Java Application Developer
• ☑ JPA/Hibernate Developer
• ☑ REST API Developer
• ☑ Associate Java Developer
• ☑ Junior Backend Engineer
• ☑ Cloud-Native Java Developer
• ☑ Full Stack Java Developer – Backend Track 

Spring Boot Developer

• ☑ Develop enterprise applications using Spring Boot
• ☑ Design and implement REST APIs
• ☑ Develop business logic and service layers
• ☑ Configure Spring Boot applications
• ☑ Implement validation and exception handling
• ☑ Integrate applications with relational databases
• ☑ Write reusable and maintainable code
• ☑ Debug and troubleshoot application issues
• ☑ Write unit and integration tests

Java Microservices Developer

• ☑ Design and develop independently deployable microservices
• ☑ Define service boundaries
• ☑ Implement inter-service communication
• ☑ Develop REST-based microservices
• ☑ Implement service discovery
• ☑ Configure API Gateway
• ☑ Implement centralized configuration
• ☑ Handle distributed application failures
• ☑ Implement synchronous and asynchronous communication
• ☑ Containerize microservices using Docker
• ☑ Deploy services using Kubernetes

Backend Engineer

• ☑ Analyze business requirements
• ☑ Design backend architecture
• ☑ Develop APIs and business services
• ☑ Design database entities and relationships
• ☑ Implement transactions
• ☑ Optimize database queries
• ☑ Implement authentication and authorization
• ☑ Monitor and troubleshoot backend applications
• ☑ Collaborate with frontend, QA and DevOps teams