SimpleHTTPServer.java

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
import java.sql.Date;

public class SimpleHTTPServer {
 public static void main(String[] args) throws Exception {
 // Create a server object that listens for incoming connections on port 8080.
 final ServerSocket server = new ServerSocket(8080);
 System.out.println("Listening for connection on port 8080...");

 // Infinite loop because we don't want the server to open and close.
 while (true) {
 // Create a Socket object which represents the connection and is used to read incoming HTTP request and send HTTP response.
 try(Socket clientSocket = server.accept()) {
 
 // Read the incoming HTTP request
 InputStreamReader isr = new InputStreamReader(clientSocket.getInputStream());
 BufferedReader reader = new BufferedReader(isr);
 
 // Read the first line of the request
 String line = reader.readLine();
 // Print all the lines of the request
 while (!line.isEmpty()) {
 System.out.println(line);
 line = reader.readLine();
 }

 Date today = new Date(0);
 String httpResponse = "HTTP/1.1 200 OK\r\n\r\n" + today;
 clientSocket.getOutputStream().write(httpResponse.getBytes("UTF-8"));
 }
 }
 }
}