如果需要修改或修改了任何内容，请通过更改检测来更改WebSphere中的HCL连接的MailSession

import javax.mail.*;
import javax.mail.internet.*;
import java.util.Properties;

public class SendEmail {
    public static void main(String[] args) {
        String to = "recipient@example.com";
        String from = "sender@example.com";
        String host = "smtp.example.com";
        String username = "your_username";
        String password = "your_password";

        Properties properties = System.getProperties();
        properties.setProperty("mail.smtp.host", host);
        properties.setProperty("mail.smtp.auth", "true");

        Session session = Session.getDefaultInstance(properties, new Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(username, password);
            }
        });

        try {
            MimeMessage message = new MimeMessage(session);
            message.setFrom(new InternetAddress(from));
            message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
            message.setSubject("Test Email");
            message.setText("This is a test email.");

            Transport.send(message);
            System.out.println("Email sent successfully.");
        } catch (MessagingException mex) {
            mex.printStackTrace();
        }
    }
}