JSP-Example

Servlet – HttpSession Login and Logout Example

This project demonstrates a basic Login and Logout system using Java Servlets and HttpSession. It shows how to create, manage, and invalidate user sessions in a Servlet-based web applications.

---

📌 Project Overview

Managing user sessions is essential in web applications to track user login status across multiple requests. In this project, HttpSession is used to:

• Store user login information
• Restrict access to secured pages
• Destroy session data on logout

---

🛠 Technologies Used

• Java (JDK 8+)
• Java Servlets
• JSP
• Apache Tomcat Server
• Eclipse IDE
• HTML

---

📂 Project Structure

LoginLogout_Servlet
│
├── src
│   ├── RequestServlet.java
│   └── ResponseServlet.java
│
├── WebContent
│   ├── login.jsp
│   ├── welcome.jsp
│   └── WEB-INF
│
└── web.xml

---

⚙️ Application Flow

1. User opens login.jsp

2. Enters username and password

3. LoginServlet

   • Validates credentials
   • Creates HttpSession
   • Stores username in session

4. User is redirected to welcome.jsp

5. User clicks Logout

6. LogoutServlet

   • Invalidates session
   • Redirects back to login page

---

📸 Screenshots

🔐 Login with Welcome Page

Password wrong then show this

🚪 Logout

---

✅ Features

• Session-based authentication
• Secure logout using session invalidation
• Simple and beginner-friendly
• Useful for academic & interview preparation

---

📚 Learning Outcome

• Understanding HttpSession lifecycle
• Session creation and destruction
• Login and logout flow using Servlets
• JSP and Servlet interaction

---

🧠 Reference

• Oracle Java Servlet Documentation https://docs.oracle.com/javaee/7/api/javax/servlet/http/HttpSession.html

• Apache Tomcat Documentation https://tomcat.apache.org/

---

⭐ If you like this project, don’t forget to star the repository!