Question

I have the same code on windows and it works well. When i move the code to centos, it gives the exception: javax.mail.MessagingException: Could not connect to SMTP host: stmp.gmail.com, port: 587; nested exception is: java.net.ConnectException: Connection refused

请允许我就这一例外提出一些建议吗?

非常感谢。

Answer 1

你们犯了错! 它应当是“smtp.gmail.com”,而不是“stmp.gmail.com”。

Answer 2

拒绝联系意味着两件事之一。不论东道方:你指定的港口是不正确的,或间歇性防火墙是打着球的。

Answer 3

如果你重新学习如何通过 Java寄邮件,尝试其他方式,那么,你需要把邮件送给你的电子邮件提供者员工和管理当局协调会服务器,而这一员工和管理当局协调会服务器则将邮件送至与本守则无关的适当地点。

<>0> 该守则在Java Servlet撰写。

public class MailClient extends HttpServlet
{
  private class SMTPAuthenticator extends Authenticator
  {
        private PasswordAuthentication authentication;

        public SMTPAuthenticator(String login, String password)
        {
             authentication = new PasswordAuthentication(login, password);
        }

        @Override
        protected PasswordAuthentication getPasswordAuthentication()
        {
             return authentication;
        }
  }

  protected void processRequest(HttpServletRequest request, 
  HttpServletResponse response) throws ServletException, IOException
  {
       response.setContentType("text/html;charset=UTF-8");
       PrintWriter out = response.getWriter();
       try
       {
            String from = "xyz.com";
            String to = "abc.com";
            String subject = "Your Subject.";
            String message = "Message Text.";
            String login = "xyz.com";
            String password = "password";

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

            Authenticator auth = new SMTPAuthenticator(login, password);

            Session session = Session.getInstance(props, auth);

            MimeMessage msg = new MimeMessage(session);

           try
           {
                msg.setText(message);
                msg.setSubject(subject);
                msg.setFrom(new InternetAddress(from));
                msg.addRecipient(Message.RecipientType.TO, 
                new InternetAddress(to));
                Transport.send(msg);
           }
           catch (MessagingException ex)
           {
                Logger.getLogger(MailClient.class.getName()).
                log(Level.SEVERE, null, ex);
           }
       } 
       finally
       {
            out.close();
       }
  } 

  @Override
  protected void doGet(HttpServletRequest request, 
  HttpServletResponse response) throws ServletException, IOException
  {
       processRequest(request, response);
  } 

  @Override
  protected void doPost(HttpServletRequest request, 
  HttpServletResponse response)  throws ServletException, IOException
  {
       processRequest(request, response);
  }

  @Override
  public String getServletInfo()
  {
       return "Short description";
  }

}

友情链接