Java Spring - Send Email (HTML) Example

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  • Java
  • 2 mins read

This Java Spring tutorial shows how to send an email in HTML format. Follow these steps:

1. YML File Configuration

mail:
    host: smtp.gmail.com                 
    port: 587
    username: *@gmail.com
    password: ****
    transport:
      protocol: smtp
    properties:
      test-connection: true
      debug: true
      smtp:
        auth: true
        starttls:
          enable: true
          required: true
        ssl:
          enable: true

2. Java Spring Example for Sending Email in HTML Format

@Autowired
   JavaMailSender mailSender;

   public void sendMail(String to, String subject, String content, boolean 
    isMultipart, boolean isHtml){

      MimeMessage mimeMessage = mailSender.createMimeMessage();

      JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
      mailSender.setHost(EMAIL_HOST);
      mailSender.setPort(EMAIL_PORT);
      mailSender.setUsername(EMAIL_USERNAME);
      mailSender.setPassword(EMAIL_PASSWORD);

      Properties properties = mailSender.getJavaMailProperties();
      properties.put("mail.smtp.starttls.enable", Boolean.TRUE);
      properties.put("mail.transport.protocol", "smtp");
      properties.put("mail.smtp.auth", Boolean.TRUE);
      properties.put("mail.smtp.starttls.required", Boolean.TRUE);
      properties.put("mail.smtp.ssl.enable", Boolean.FALSE);
      properties.put("mail.test-connection", Boolean.TRUE);
      properties.put("mail.debug", Boolean.TRUE);

      mailSender.setJavaMailProperties(properties);

      try {
        MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage, isMultipart, "UTF-8");
        messageHelper.setFrom(USER_EMAIL);
        messageHelper.setTo(to);
        messageHelper.setSubject(subject);
        messageHelper.setText(content, isHtml);
        mailSender.send(mimeMessage);
      } catch (Exception ex) {
        log.warn("Email could not be sent to user '{}': {}", to, ex.getMessage());
      }
    }

3. Call The Java Spring Procedure

@Async
    public void sendTestingMail(String mail) {
      String subject = "Test mail from Project Management System";
      String content = "<h1>Be happy, Enjoy Life...!!!</h1>";
      sendMail(mail, subject, content, false, true);
    }

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