spring send emails using gmail smtp code example

Example 1: spring mail

// of course you would use DI in any real-world cases
JavaMailSenderImpl sender = new JavaMailSenderImpl();
sender.setHost("mail.host.com");

MimeMessage message = sender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(message);
helper.setTo("[email protected]");
helper.setText("Thank you for ordering!");

sender.send(message);

Example 2: spring mail

public interface OrderManager {

    void placeOrder(Order order);
}