protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    //processRequest(request, response);


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

    String email = request.getParameter("email");

        String assunto = "Cadastro de dados do EccomeceJSP2";
        EnviarEmailGmail gm = new EnviarEmailGmail();
        gm.enviarGmail(email, assunto, login, senha);

public class EnviarEmailGmail {

    static Session session;

public void enviarGmail(String email, String assunto, String login, String senha){
try {

  final String username = "meuemail@gmail.com";
    final String password = "minhasenha";

    Properties props = new Properties();
    props.put("mail.smtp.auth", "true");
    //props.put("mail.smtp.starttls.enable", "true");
    props.put("mail.smtp.host", "smtp.gmail.com");
    props.put("mail.smtp.port", "587");
            props.put("mail.smtp.socketFactory.port", "465");
props.put("mail.smtp.socketFactory.class","javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");

     session = Session.getInstance(props,
      new javax.mail.Authenticator() {
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(username, password);
        }
      });

        Message message = new MimeMessage(session);
        message.setFrom(new InternetAddress("meuemail@gmail.com"));
        message.setRecipients(Message.RecipientType.TO,
            InternetAddress.parse(email));
        message.setSubject(assunto);
        //message.setText("Seu cadastro foi realizado com sucesso e seu login e senha será <br> " + "Login:" + login + "Senha:" + senha);


   MimeMultipart multipart2 = new MimeMultipart("related");

    // first part  (the html)
    BodyPart messageBodyPart = new MimeBodyPart();
    String htmlText = "<H3>Seu cadastro foi realizado com sucesso e seu login e senha será:</H3><br><b>Login:+login+</b><br><b>Senha:+senha+</b><br><br><img src="cid:image">";
    messageBodyPart.setContent(htmlText, "text/html");

    // add it
    multipart2.addBodyPart(messageBodyPart);

    // second part (the image)
    messageBodyPart = new MimeBodyPart();
    DataSource fds = new FileDataSource
      ("C:\imagens\eccomerce.JPG");
    messageBodyPart.setDataHandler(new DataHandler(fds));
    messageBodyPart.setHeader("Content-ID","<image>");

    // add it
    multipart2.addBodyPart(messageBodyPart);

    // put everything together
    message.setContent(multipart2);


        Transport.send(message);

        System.out.println("Done");

    } catch (MessagingException e) {
        throw new RuntimeException(e);
       }
     }

    }