Multithreaded Web Server

A Java-based web server implementation demonstrating different threading approaches for handling concurrent client connections.

Project Structure

MultithreadedWebServer/
├── SingleThreaded/
│   ├── Client.java
│   └── Server.java
├── Multithreaded/
│   ├── Client.java
│   └── Server.java
└── ThreadPool/
    └── Server.java

Implementations

1. Single-Threaded Server

• Location: SingleThreaded/
• Port: 8010
• Description: Basic server that handles one client at a time sequentially
• Limitation: Cannot handle concurrent connections

2. Multithreaded Server

• Location: Multithreaded/
• Port: 8010
• Description: Creates a new thread for each client connection
• Features:
  • Handles multiple concurrent clients
  • Client spawns 100 concurrent connections for testing
  • Uses try-with-resources for proper resource management

3. Thread Pool Server

• Location: ThreadPool/
• Port: 8010
• Description: Uses a fixed thread pool to manage client connections efficiently
• Features:
  • Fixed pool size of 10 threads
  • Better resource management than creating unlimited threads
  • Reuses threads for multiple client connections

How to Run

Running the Servers

1. Single-Threaded Server:

   cd SingleThreaded
   javac Server.java
   java Server

2. Multithreaded Server:

   cd Multithreaded
   javac Server.java
   java Server

3. Thread Pool Server:

   cd ThreadPool
   javac Server.java
   java Server

Running the Clients

1. Single-Threaded Client:

   cd SingleThreaded
   javac Client.java
   java Client

2. Multithreaded Client (creates 100 concurrent connections):

   cd Multithreaded
   javac Client.java
   java Client

Key Features

• Socket Communication: TCP socket-based client-server communication
• Concurrent Handling: Different approaches to handle multiple clients
• Resource Management: Proper closing of sockets and streams
• Error Handling: Exception handling for network operations

Performance Comparison

Implementation	Concurrency	Resource Usage	Scalability
Single-Threaded	None	Low	Poor
Multithreaded	Unlimited threads	High	Limited by system
Thread Pool	Fixed pool	Controlled	Good

Requirements

• Java 8 or higher
• Network connectivity (localhost)

Notes

• All servers listen on port 8010
• Single-threaded client connects to port 8090 (different from servers)
• Servers have socket timeout configured (20-70 seconds)
• Multithreaded client demonstrates load testing with 100 concurrent connections