import java.io.*;
import java.net.*;

public class Server implements Runnable {
private ServerSocket server;

public Server() {
	try {
		server = new ServerSocket(5555);
	} catch(IOException e) {
		System.out.println(e.toString());
		System.exit(0);
	}
}

public static void main(String args[]) {
	Server svr = new Server();
	Thread t = new Thread(svr);
	t.start();
}

public void run() {
	while(true) {
		try {
			System.out.println("listen...");
			Socket sck = server.accept();
			Handler handler = new Handler(sck);		
			
		} catch(IOException e) {
			System.out.println(e.toString());
		}
	}
}

public class Handler implements Runnable {
	private DataInputStream in;
	private DataOutputStream out;
	private Socket sck;
	
	public Handler(Socket sck) {
		try {
			this.sck = sck;
			in = new DataInputStream(sck.getInputStream());
			out = new DataOutputStream(sck.getOutputStream());
			Thread t = new Thread(this);
			t.start();
		} catch(IOException e) {
			try {
				sck.close();
			} catch(IOException ex) {
				ex.printStackTrace();
			}
		}
	}
	
	public void run() {
		try {
			while(true) {
				String msg = in.readUTF();
				System.out.println("received msg : "+msg);
				out.writeUTF("Hello "+msg);
			}
		} catch(IOException e) {
			System.out.println(e.toString());
			try {
				in.close();
				out.close();
				sck.close();
			} catch(IOException ex) {
				ex.printStackTrace();
			}
		}
	}
}
}

            
import java.io.*;
import java.net.*;
import javax.servlet.*;
import javax.servlet.http.*;
import specular.net.*;

public class SocketServlet extends HttpServlet {
	
	public void doGet(HttpServletRequest req, HttpServletResponse res) 
		throws IOException, ServletException 
	{
		SocketPool pool=null;
		DataOutputStream out=null;
		DataInputStream in=null;
		Socket sck=null;
		try {
			res.setContentType("text/html");
			PrintWriter pout = res.getWriter();
			pool = SocketPool.getInstance();
			sck = pool.getSocket();
			out = new DataOutputStream(sck.getOutputStream());
			in = new DataInputStream(sck.getInputStream());
			out.writeUTF("HongSeong");
			String result=in.readUTF();
			System.out.println(result);
			pout.println("<b>"+result+"</b>");
		} catch(IOException e) {
			e.printStackTrace();
		} finally {
			try {
				pool.release(sck);
			} catch(IOException e) {
				e.printStackTrace();
			}
		}
	}
}

            
host=127.0.0.1
port=5555
maxCons=100
initialCons=10
block=true
timeout=500