Online Shopping Cart

A Java web application that implements a basic e-commerce shopping cart system with user and admin functionalities.

Features

User Features

• User registration and authentication
• Browse available items
• Add items to shopping cart
• Modify cart quantities
• Remove items from cart
• Complete checkout process

Admin Features

• Secure admin login (ID: -1, Password: 1234)
• Manage inventory (add/remove/edit items)
• View and manage registered users
• Monitor item quantities
• Add new items to the system
• Edit item details (name, price)

Technical Architecture

Backend

• Java Servlets for handling HTTP requests
• JDBC for database operations
• MySQL database for data persistence

Data Models

1. User

   • uid (User ID)
   • uname (Username)
   • pass (Password)

2. Item

   • itid (Item ID)
   • itname (Item Name)
   • quantity
   • price

3. Cart

   • cid (Cart ID)
   • uid (User ID)
   • itid (Item ID)
   • itname (Item Name)
   • price
   • quantity

Key Components

DAO Classes

• Userdao.java: Handles user-related database operations
• Itemdao.java: Manages item inventory operations
• Cartdao.java: Handles shopping cart operations

Controllers

1. Admin Controllers

   • AdminLogin.java: Handles admin authentication
   • AdminAddItem.java: Manages adding inventory
   • AdminEditItems.java: Handles item modifications
   • AdminRemoveItem.java: Manages inventory removal

2. User Controllers

   • UserLogin.java: Handles user authentication
   • UserRegister.java: Manages user registration
   • BuyItem.java: Processes purchase transactions
   • RemoveItem.java: Handles cart item removal

Database Configuration

The application connects to MySQL database with the following configuration:

URL: "jdbc:mysql://localhost:3306/online_shopping"
Username: "root"
Password: "QWERTY"

Setup Instructions

1. Database Setup

   • Install MySQL Server
   • Create a database named online_shopping
   • Configure the database credentials in DAO classes if needed

2. Project Dependencies

   • Java Development Kit (JDK)
   • MySQL Connector/J
   • Java Servlet API
   • JSP Standard Tag Library (JSTL)

3. Deployment

   • Deploy the application on a Java web server (e.g., Apache Tomcat)
   • Ensure database connectivity
   • Start the server and access the application

Usage

1. Admin Access

   • Login with admin credentials (ID: -1, Password: 1234)
   • Access admin dashboard at admintask.jsp
   • Manage inventory and users

2. User Access

   • Register new account at usereg.jsp
   • Login at userlogin.jsp
   • Browse items at shopitems.jsp
   • View cart at usercart.jsp

Security Features

• Session management for user authentication
• Password protection for user accounts
• Separate admin privileges
• Input validation for critical operations

Error Handling

The application includes comprehensive error handling for:

• Database connectivity issues
• Invalid login attempts
• Inventory management errors
• Cart operation failures

File Structure

+---java
¦   +---demojstl
¦       +---bean
¦       ¦       Cart.java
¦       ¦       Item.java
¦       ¦       User.java
¦       ¦       
¦       +---controller
¦       ¦       AdminAddItem.java
¦       ¦       AdminAddItems.java
¦       ¦       AdminEditItems.java
¦       ¦       AdminLogin.java
¦       ¦       AdminLogout.java
¦       ¦       AdminRemoveItem.java
¦       ¦       BuyItem.java
¦       ¦       Checkout.java
¦       ¦       RemoveItem.java
¦       ¦       RemoveUser.java
¦       ¦       UserLogin.java
¦       ¦       UserLogout.java
¦       ¦       UserRegister.java
¦       ¦       
¦       +---dao
¦       ¦       Cartdao.java
¦       ¦       Itemdao.java
¦       ¦       Userdao.java
¦       ¦       
¦       +---online_shopping_cart
¦           ¦   JakartaRestConfiguration.java
¦           ¦   
¦           +---resources
¦                   JakartaEE8Resource.java
¦                   
+---resources
¦   +---META-INF
¦           persistence.xml
¦           
+---webapp
    ¦   adminlogin.jsp
    ¦   admintask.jsp
    ¦   contact.jsp
    ¦   edititems.jsp
    ¦   index.jpg
    ¦   index.jsp
    ¦   manageitems.jsp
    ¦   manageuser.jsp
    ¦   newitems.jsp
    ¦   publicshoplist.jsp
    ¦   shopitems.jsp
    ¦   thankyou.jsp
    ¦   usercart.jsp
    ¦   usereg.jsp
    ¦   userlogin.jsp
    ¦   usertask.jsp
    ¦   
    +---META-INF
    ¦       context.xml
    ¦       
    +---WEB-INF
            beans.xml
            web.xml

Contributing

To contribute to this project:

1. Fork the repository
2. Create a feature branch
3. Commit your changes
4. Push to the branch
5. Create a Pull Request

License

MIT License

Author

Keval