如何使用异步API在java中发送电子邮件

Properties properties = new Properties();
properties.put("mail.smtp.host", "your_smtp_host");
properties.put("mail.smtp.port", "your_smtp_port");
properties.put("mail.smtp.auth", "true");

Session session = Session.getInstance(properties, new Authenticator() {
    protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication("your_username", "your_password");
    }
});

MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress("sender@example.com"));
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse("recipient@example.com"));
message.setSubject("Hello, World!");
message.setText("This is the content of the email.");

Transport.send(message);