JAVA

HttpServer example java

public class BasicHttpServerExample {

  public static void main(String[] args) throws IOException {
      HttpServer server = HttpServer.create(new InetSocketAddress(8500), 0);
      HttpContext context = server.createContext("/");
      context.setHandler(BasicHttpServerExample::handleRequest);
      server.start();
  }

  private static void handleRequest(HttpExchange exchange) throws IOException {
      String response = "Hi there!";
      exchange.sendResponseHeaders(200, response.getBytes().length);//response code and length
      OutputStream os = exchange.getResponseBody();
      os.write(response.getBytes());
      os.close();
  }
}

HttpServer example java

package com.stackoverflow.q3732109;

import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;

import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;

public class Test {

    public static void main(String[] args) throws Exception {
        HttpServer server = HttpServer.create(new InetSocketAddress(8000), 0);
        server.createContext("/test", new MyHandler());
        server.setExecutor(null); // creates a default executor
        server.start();
    }

    static class MyHandler implements HttpHandler {
        @Override
        public void handle(HttpExchange t) throws IOException {
            String response = "This is the response";
            t.sendResponseHeaders(200, response.length());
            OutputStream os = t.getResponseBody();
            os.write(response.getBytes());
            os.close();
        }
    }

}