java - 用 Java 向电子邮件发送消息的程序

Question

我创建了一个用 Java 将文件发送到电子邮件的程序。如何插入一个每 2 分钟自动发送邮件的计时器？我认为这可能是通过计时器，但如果有人有不同的方式或遇到这个或类似的问题，它会对我有很大帮助。

这是代码：

public class EMail {

    public static void main(String[] args) 
    {
        SendEmail();

    }
    private static void SendEmail ()
    {
        final String username = "[e-mail]";
        final String password = "password";

        Properties props = new Properties();
        props.put("mail.smtp.auth", true);
        props.put("mail.smtp.starttls.enable", true);
        props.put("mail.smtp.host", "smtp.gmail.com");
        props.put("mail.smtp.port", "587");

        Session session = Session.getInstance(props,
                new javax.mail.Authenticator()
        {
                    protected PasswordAuthentication getPasswordAuthentication() {
                        return new PasswordAuthentication(username, password);
                    }
                });
      
        try {

            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress("[e-mail]"));
            message.setRecipients(Message.RecipientType.TO,
                    InternetAddress.parse("[e-mail]"));
            message.setSubject("Testing Subject");
            message.setText("PFA");

            MimeBodyPart messageBodyPart = new MimeBodyPart();

            Multipart multipart = new MimeMultipart();

            messageBodyPart = new MimeBodyPart();
            String file = "C:\\Users\\Name\\UserData\\Logs.txt";
            String fileName = "Logs.txt";
            DataSource source = new FileDataSource(file);
            messageBodyPart.setDataHandler(new DataHandler(source));
            messageBodyPart.setFileName(fileName);
            multipart.addBodyPart(messageBodyPart);

            message.setContent(multipart);

            System.out.println("Sending");

            Transport.send(message);

            System.out.println("Done");

        } catch (MessagingException e) {
            e.printStackTrace();
        }
    
    }
}

标签： javaemailsend

Answer 1

您可以这样做。此代码将使您能够每两分钟发送一次邮件。

public class EmailHandler{

    public static void main(String[] args){

        Thread emailSenderThread = new Thread(new EmailSender());
        emailSenderThread.start();

    }
    private static class EmailSender implements Runnable {

          private void sendEmail(){
          //Email sending logic Impl
          }
          @Override
          public void run() {
               for(;;){
                   sendEmail();
                   try {
                       Thread.sleep(120000);//Thread is sleeping for 2 minutes
                   } catch (InterruptedException e) {
                       System.out.println(e);
                   }

               }
           }

      }


}