🔐 Login & Registration System

A full-stack user authentication system built with Java Servlets, JSP, JDBC, and PostgreSQL — demonstrating secure login/registration flows, BCrypt password encryption, and complete CRUD-based user management, all following a clean MVC architecture.

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✨ Features

Category	Details
🔒 Authentication	Secure login & registration with BCrypt password hashing
👤 User Management	Full CRUD — Create, Read, Update, Delete users
✅ Validation	Frontend (JavaScript) + Backend form validation
🏗️ Architecture	MVC pattern using Servlets + JSP

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🛠️ Tech Stack

Backend

• Java Servlets (Controller layer)
• JDBC (Database connectivity)
• BCrypt (Password encryption)

Frontend

• JSP, HTML5, CSS3, JavaScript

Database

• PostgreSQL (via DBeaver)

Server

• Apache Tomcat

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📂 Project Structure

login-system-fullstack/
├── dao/          # Data Access Objects — all DB operations
├── model/        # POJOs / Data models
├── web/          # Servlets (Controllers)
└── webapp/       # UI layer — JSP, HTML, CSS, JS

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⚙️ Setup & Installation

Prerequisites

• Java JDK 11+
• Apache Tomcat 9+
• PostgreSQL
• IntelliJ IDEA

Steps

1. Clone the repository

   git clone https://github.com/wahidali-glitch/login-system-fullstack.git
   cd login-system-fullstack

2. Configure the database

   • Create a PostgreSQL database
   • Update DB credentials in your db.properties or DAO config file

3. Import into IntelliJ IDEA

   • Open as a Maven/Gradle project
   • Let dependencies resolve

4. Deploy to Tomcat

   • Configure Tomcat in IntelliJ Run/Debug settings
   • Build & run the project

5. Access the app

   http://localhost:8080/login-system

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📸 Screenshots

🔐 Login Page

📝 Signup Page

🔑 Forgot Password

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🗺️ Roadmap

• Session management improvements
• JWT-based stateless authentication
• Role-based access control (RBAC)
• UI/UX enhancements

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👨‍💻 Author

Wahid Ali

• GitHub: @wahidali-glitch

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📄 License

This project is open source and available under the MIT License.