A curated collection of Spring Boot applications demonstrating enterprise Java development patterns, RESTful APIs, and modern backend best practices
Comprehensive examples covering essential backend development concepts
Build production-ready applications with Spring Boot, leveraging auto-configuration and embedded servers for rapid development.
Master entity relationships, cascade operations, and database interactions using Spring Data JPA and Hibernate.
Implement clean, scalable REST APIs following industry best practices with proper HTTP methods and status codes.
Apply enterprise design patterns with interface-based service layers for maintainable and testable code.
Connect to MySQL and PostgreSQL databases with automatic schema generation and migration support.
Learn industry-standard coding practices, error handling, validation, and project structure organization.
Explore real-world applications demonstrating backend concepts
A comprehensive Spring Boot application demonstrating JPA entity relationships and RESTful API design. This project showcases complete CRUD operations across multiple related entities with proper cascade handling.
An enterprise-grade inventory management system with multi-warehouse support and advanced tracking capabilities. This project demonstrates comprehensive inventory operations including stock transfers, purchase orders, sales fulfillment, batch tracking, and inventory valuation methods.
An intelligent prescription management system with advanced safety features including drug interaction checks, allergy validation, and automated dosage calculations. This project demonstrates healthcare-focused backend development with patient safety as the top priority.
A comprehensive banking transaction processing system with daily limits, fraud detection, and multi-currency support. This project demonstrates enterprise-grade transaction management including automated payments, currency conversion, and intelligent fraud detection with configurable rules.
Modern Java backend technologies powering these projects
| Technology | Purpose |
|---|---|
| Java 21 | Programming Language |
| Spring Boot | Application Framework |
| Spring Data JPA | Data Access Layer |
| Hibernate | ORM Framework |
| MySQL / PostgreSQL | Relational Databases |
| Maven | Build & Dependency Management |
| Spring Boot DevTools | Development Utilities |
| JUnit & Mockito | Testing Frameworks |
Follow these steps to run the projects locally
Get the source code from GitHub
git clone https://github.com/Dronanaik/Java_Backend.git
cd Java_Backend
Create a MySQL database
CREATE DATABASE project_name;
Update application.properties
spring.datasource.url=jdbc:mysql://localhost:3306/db_name
spring.datasource.username=your_username
spring.datasource.password=your_password
Start the application
mvn clean install
mvn spring-boot:run
📚 For detailed project-specific instructions, refer to individual README files