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ChatBot

html css JSP Servlet

Simple ChatBot Using Java Servlet JSP.

About the Project

This project is a simple ChatBot web application built using Java Servlet and JSP. It allows users to interact with a basic rule-based chatbot directly from their browser.

The ChatBot processes user input on the server side using Java Servlets, matches keywords or patterns, and responds with predefined answers. The frontend is implemented with JSP for rendering the chat interface and displaying the conversation history.

No database required—conversations are handled per session.
Easy to deploy on any Java EE compatible servlet container (like Tomcat).
Great for learning the basics of Java web development, Servlets, and JSP.

Key Features

Real-time Chat Interface

Users can send messages and receive instant responses from the chatbot in a conversational UI.

Rule-based Responses

The chatbot uses simple keyword or pattern matching to generate relevant replies.

Session-based Conversation

Each user's conversation is maintained per session—no database required.

Easy Deployment

Deployable on any Java EE servlet container (like Tomcat) with minimal configuration.

Technical Implementation

The ChatBot is implemented using a simple Java Servlet and JSP structure:

JSP View: Renders the chat interface and displays the conversation history.
Servlet Controller: Handles user input (POST requests), processes messages, and generates responses.
Session Storage: Maintains the conversation for each user session (no database required).
Rule-based Logic: Uses simple keyword or pattern matching in Java to generate chatbot replies.

Sample Servlet Logic

                            @Override
                            protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
                              String user_text = req.getParameter("user_text");
                              String botResponse = processUserText(user_text);
                            
                              req.setAttribute("botResp", botResponse);
                              req.getRequestDispatcher("/com/html/index.jsp").forward(req, resp);
                            }
                        

The application does not use a database; all chat history is kept in the user's session. This makes it lightweight and easy to deploy.

Project Information

Project Links

Source Code Live Demo

Tech Stack

Java 21

Spring framework html css JSP Servlet

Timeline

Started: February 4, 2024

Completed: February 4, 2024

Last Updated: February 4, 2024

Contributors

Manish Kumar

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