🎓 Student Management System

A full-stack Spring Boot based Student Management System with robust features including authentication, authorization, exception handling, role-based access, pagination, and searching. Built following clean architecture and industry best practices.

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🔐 User Authentication & Authorization

• ✅ Role-based access control (ADMIN / USER) using Spring Security
• 🔒 Password encryption with BCryptPasswordEncoder

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❗ Exception Handling

• 🧠 Global exception handling using @ControllerAdvice
• 📢 Clean and informative error responses for client-side integration

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✅ Input Validations

• 📋 Field-level validation using Hibernate Validator
• ⚠️ Automatic handling of bad requests with descriptive messages

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🔗 Relational Mapping & Joins

• 🔄 Entity relationships using @OneToMany, @ManyToOne, @ManyToMany
• 🔍 Data integrity and join handling with JPA and custom queries

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🧳 DTO and Mapping

• 🔁 Data transfer handled with DTOs
• 🔄 Seamless model-to-DTO and DTO-to-model conversions via ModelMapper

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🚀 Pagination & Searching

• 📄 Pageable API endpoints using Spring Data
• 🔎 Dynamic searching and filtering
• ⚡ Optimized queries for performance with large data sets

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🧼 Clean Architecture

• 🧱 Layered structure: Controller → Service → Repository
• 💡 Follows SOLID principles

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📂 Tech Stack

• 💻 Java 21
• ⚙️ Spring Boot
• 🗃️ Spring Data JPA
• 🛡️ Spring Security
• 🐬 MySQL
• 🧪 Hibernate Validator
• 🔄 ModelMapper
• 🧥 Lombok

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