[jsp] connettere gmail a servlet

[cobbra]

CIao a tutti
sto provando in tutti i modi ad inviare una mail tramite la mia aplicazione java, ma mi da il seguente errore:

com.sun.mail.util.MailConnectException: Couldn't connect to host, port: localhost, 25; timeout -1;  nested exception is:
java.net.ConnectException: Connection refused

ecco la classe

package com.qapro.service;


import java.util.Date;
import java.util.Properties;
 
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
 
/**
 * A utility class for sending e-mail messages
 * @author www.codejava.net
 *
 */
public class Email {
    public static void sendEmail(String host, String port,
            final String userName, final String password, String toAddress,
            String subject, String message) throws AddressException,
            MessagingException {
 
        // sets SMTP server properties
        Properties properties = new Properties();
        properties.put("smtp.gmail.com", "mail.smtp.host");
        properties.put("587", "mail.smtp.port");
        properties.put("mail.smtp.auth", "true");
        properties.put("mail.smtp.starttls.enable", "true");
 
        // creates a new session with an authenticator
        Authenticator auth = new Authenticator() {
            public PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(userName, password);
            }
        };
 
        Session session = Session.getInstance(properties, auth); 
 
        // creates a new e-mail message
        Message msg = new MimeMessage(session);
 
        msg.setFrom(new InternetAddress(userName));
        InternetAddress[] toAddresses = { new InternetAddress(toAddress) };
        msg.setRecipients(Message.RecipientType.TO, toAddresses);
        msg.setSubject(subject);
        msg.setSentDate(new Date());
        msg.setText(message);
 
        // sends the e-mail
        Transport.send(msg);
 
    }
}

ecco il servlet

package com.qapro.servlets;


import java.io.IOException;


import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


import com.qapro.service.Email;
 
/**
 * A servlet that takes message details from user and send it as a new e-mail
 * through an SMTP server.
 *
 * @author www.codejava.net
 *
 */
public class EmailSendingServlet extends HttpServlet {
	
	private static final long serialVersionUID = 1L;
    
    /**
     * @see HttpServlet#HttpServlet()
     */
    public EmailSendingServlet() {
        super();
        // TODO Auto-generated constructor stub
    }


    private String host;
    private String port;
    private String user;
    private String pass;
 
    public void init() {
        // reads SMTP server setting from web.xml file
        ServletContext context = getServletContext();
        host = context.getInitParameter("host");
        port = context.getInitParameter("port");
        user = context.getInitParameter("user");
        pass = context.getInitParameter("pass");
    }
 
    protected void doPost(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        // reads form fields
        String recipient = request.getParameter("recipient");
        String subject = request.getParameter("subject");
        String content = request.getParameter("content");
 
        String resultMessage = "";
 
        try {
            Email.sendEmail(host, port, user, pass, recipient, subject,
                    content);
            resultMessage = "The e-mail was sent successfully";
        } catch (Exception ex) {
            ex.printStackTrace();
            resultMessage = "There were an error: " + ex.getMessage();
        } finally {
            request.setAttribute("Message", resultMessage);
            getServletContext().getRequestDispatcher("/Result.jsp").forward(
                    request, response);
        }
    }
}

ed ecco i parametri che ho inserito nel .xml

<!-- SMTP settings -->
    <context-param>
        <param-name>host</param-name>
        <param-value>smtp.gmail.com</param-value>
    </context-param>
 
    <context-param>
        <param-name>port</param-name>
        <param-value>587</param-value>
    </context-param>
 
    <context-param>
        <param-name>user</param-name>
        <param-value>deepsession1@gmail.com</param-value>
    </context-param>
 
    <context-param>
        <param-name>pass</param-name>
        <param-value>d33ps3ss1on</param-value>
    </context-param>