User Registration and Login System

A Java-based user registration and login system with Oracle Database integration, containerized with Docker for easy deployment.

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🚀 Features

• User registration with secure password hashing (SHA-256)
• Login authentication against Oracle Database
• User profile dashboard after successful login
• Containerized Oracle Database using Docker
• Clean Java implementation with proper separation of concerns

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🛠️ Technologies Used

• Java - Core application logic
• Oracle Database XE - Database management
• Docker - Containerization of Oracle Database
• JDBC - Database connectivity
• Git - Version control

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📋 Prerequisites

Before running this application, ensure you have the following installed:

• Java JDK 17 or higher
• Docker
• Git
• Oracle JDBC Driver (ojdbc11.jar)

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⚙️ Installation & Setup

1️⃣ Clone the Repository

git clone https://github.com/your-username/java-user-login-system.git
cd java-user-login-system

# Pull the Oracle XE image
docker pull gvenzl/oracle-xe

# Run the Oracle XE container
docker run -d --name oracle-xe \
  -p 1521:1521 -p 5500:5500 \
  -e ORACLE_PASSWORD=your_password \
  gvenzl/oracle-xe

Update the database connection details in util/DatabaseConnection.java:

private static final String URL = "jdbc:oracle:thin:@localhost:1521/XEPDB1";
private static final String USER = "system";
private static final String PASSWORD = "your_password";

Create Database Table

CREATE TABLE Users (
    id NUMBER GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
    name VARCHAR2(100) NOT NULL,
    email VARCHAR2(100) UNIQUE NOT NULL,
    password_hash VARCHAR2(100) NOT NULL
);