import javax.servlet.*;
import java.io.*;


public class TServ extends GenericServlet {
    public void service (
        ServletRequest req, ServletResponse resp
    ) throws ServletException, IOException {
        ServletOutputStream out = resp.getOutputStream ();
        DataOutputStream dos = new DataOutputStream (out);
        String message = "Mensagem enviada pelo servlet";
        dos.writeInt ((int) message.length ());
        dos.writeBytes (message);
        dos.close ();

    }
}