import javax.mail.*;

import javax.mail.internet.*;

import javax.mail.Authenticator;

import javax.mail.PasswordAuthentication;

import java.util.Properties;

public class SimpleMail

{

    private static final String SMTP_HOST_NAME = "smtp.host.com";

    private static final String SMTP_AUTH_USER = "no-replay@xxxx.com";

    private static final String SMTP_AUTH_PWD = "password";

    public static void main(String[]args) throws Exception

    {

        new SimpleMail().test();

    }

    public void test() throws Exception

    {

        Properties props = new Properties();

        props.put("mail.transport.protocol", "smtp");

        props.put("mail.smtp.host", SMTP_HOST_NAME);

        props.put("mail.smtp.auth", "true");

        Authenticator auth = new SMTPAuthenticator();

        Session mailSession = Session.getDefaultInstance(props, auth);

        // uncomment for debugging infos to stdout

        // mailSession.setDebug(true);

        Transport transport = mailSession.getTransport();

        MimeMessage message = new MimeMessage(mailSession);

        message.setContent("This is a test", "text/plain");

        message.setFrom(new InternetAddress("xxx.com"));

        message.addRecipient(Message.RecipientType.TO, new InternetAddress("12354656@qq.com"));

        transport.connect();

        transport.sendMessage(message, message.getRecipients(Message.RecipientType.TO));

        transport.close();

    }

    private class SMTPAuthenticator extends javax.mail.Authenticator

    {

        public PasswordAuthentication getPasswordAuthentication()

        {

            String username = SMTP_AUTH_USER;

            String password = SMTP_AUTH_PWD;

            return new PasswordAuthentication(username, password);

        }

    }

}