🧠 Quiz Application --- Spring Boot

A full-stack Quiz Management System built using Spring Boot that lets users attempt quizzes while admins manage questions, categories, and quiz content.

Built to understand how real backend systems handle authentication, database persistence, and layered architecture.

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✨ What This Project Does

👤 Users

• Register & login
• Attempt quizzes
• Get instant scores
• Browse category-based quizzes

🛠 Admin

• Create quiz categories
• Add / edit / delete questions
• Manage quizzes dynamically

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⚡ Tech Stack

Layer Tech

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Backend Spring Boot, Java Architecture MVC Pattern ORM Spring Data JPA, Hibernate Database MySQL Frontend Thymeleaf, HTML, CSS Build Tool Maven

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🧩 Core Features

• Authentication system
• Role-based access (Admin/User)
• Dynamic quiz generation
• Automatic answer evaluation
• Persistent database storage
• Clean layered backend design

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🏗️ Architecture (Simple View)

Client → Controller → Service → Repository → Database

• Controller → handles requests\
• Service → business logic\
• Repository → database operations\
• Database → stores users, quizzes, questions

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📂 Project Structure

src/main/java
│
├── controller      → Request handling
├── service         → Business logic
├── repository      → JPA repositories
├── model           → Entities
└── QuizApplication → Entry point

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🚀 Run Locally

1️⃣ Clone Repository

git clone https://github.com/<your-username>/QuizApplication.git
cd QuizApplication

2️⃣ Create Database

CREATE DATABASE quiz_db;

3️⃣ Configure Database

Update inside:

src/main/resources/application.properties

spring.datasource.username=root
spring.datasource.password=your_password

4️⃣ Start Application

mvn spring-boot:run

Open in browser:

http://localhost:8080

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🧠 What I Learned

• Designing backend systems using Spring Boot
• MVC architecture in real applications
• Database modeling with JPA
• Authentication flow implementation
• Writing maintainable layered code

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🔮 Future Improvements

• JWT Authentication
• Quiz timer
• Leaderboard system
• REST API version
• Cloud deployment