Untitled

package br.com.lol;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class MainServlet
 */
@WebServlet("/MainServlet")
public class MainServlet extends HttpServlet {

	protected void processRequest(HttpServletRequest request, HttpServletResponse response)  throws ServletException, IOException {
		response.setContentType("text/html;charset=UTF-8");

		String usuario = request.getParameter("usuario");
		String senha = request.getParameter("senha");

		try (PrintWriter out = response.getWriter()) {
			out.println("<!DOCTYPE html>");
			out.println("<html lang=\"pt-br\">");
			out.println("<head>");
			out.println("<meta charset=\"UTF-8\">");
			out.println("<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">");
			out.println("<title>Teste Web</title>");
			out.println("</head>");
			out.println("<body>");
			out.println("<div style=\"text-align:center\">");
			out.println("<h1>Bom dia "+usuario+"!</h1><br>");
			out.println("</div>");
			out.println("<form action=\"index.html\" method=\"POST\"></form>");
			if ((usuario.equalsIgnoreCase("spielberg")) && (senha.equals("123456"))) {
				out.println("<h3>Você está cadastrado em nosso sistema.</h3><br>");
			}
			else {
				out.println("<h3>Você não está cadastrado em nosso sistema.</h3><br>");
			}
			out.println("<div style=\"text-align:center\">");
			out.println("<input type\"submit\" value=\"Voltar\">");
			out.println("</div>");
			out.println("</body>");
			out.println("</html>");
		}
	}
}