HTTP server capable of Keep-Alive

bman

Hi,

I'm trying to create a http server in Java which is capable of providing keep-alive connections. I'm using the com.sun.net.httpserver.HttpServer class.

Here's my code:

package Test;

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

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

public class httpHandler implements HttpHandler {
	
	private String resp = "<?xml version='1.0'?><root-node></root-node>";
	
	private OutputStream os = null;
	
	public void handle(HttpExchange t) throws IOException {
		System.out.println("Handling message...");
		java.io.InputStream is = t.getRequestBody();
		
		System.out.println("Got request body. Reading request body...");
		byte[] b = new byte[500];
		is.read(b);
		System.out.println("This is the request: " + new String(b));
			
		String response = resp;
		Headers header = t.getResponseHeaders();
		header.add("Connection", "Keep-Alive");
		header.add("Keep-Alive", "timeout=14 max=100");
		header.add("Content-Type", "application/soap+xml");
		t.sendResponseHeaders(200, response.length());
		
		if(os == null) {
			os = t.getResponseBody();
		}
		
		os.write(response.getBytes());
		
		System.out.println("Done with exchange. Closing connection");
		os.close();
	}

	public static void main(String[] args) {
		HttpServer server = null;
		try {
			server = HttpServer.create(new InetSocketAddress(8080), 5);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		server.createContext("/", new httpHandler());
		server.setExecutor(null); // creates a default executor
		System.out.println("Starting server...");
		server.start();
	}
}

The client does not close the connection. The server seems to close it instead directly after the exchange has occurred. I tried deleting the os.close line but then the server will not reply to the second request. But it doesn't close it either. I have a feeling it involves doing something in the main code with the server object but I have no idea what. Google isn't turning up much either.

Anyone here got any ideas? Any help would be much appreciated.