Question

Hi I have to send email in java.

The below has successfully worked for me.

          public class SendMail {

             public static void main(String[] args) {                   
                 Properties props = new Properties();
                 props.put("mail.smtp.host", "smtp.gmail.com");
                 props.put("mail.smtp.socketFactory.port", "465");
                 props.put("mail.smtp.socketFactory.class",
                                "javax.net.ssl.SSLSocketFactory");
                 props.put("mail.smtp.auth", "true");
                 props.put("mail.smtp.port", "465");

                 Session session = Session.getDefaultInstance(props,
                                   new javax.mail.Authenticator() {
                                     protected PasswordAuthentication getPasswordAuthentication() {
                                        return new PasswordAuthentication("[e-mail]","xxxxx!1");
                                     }
                                   });

                  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("Dear Mail Crawler," +
                                      "\n\n No spam to my email, please!");
                        Transport.send(message);
                        System.out.println("Done"); 
                      } catch (MessagingException e) {
                          throw new RuntimeException(e);
                      }
              }

           }

Here I have mentioned gmail username and password. But I have to send email without using username and password in my code. How can I develop this. Please help me.

Answer 1

create a mail.properties file and put username and password into in that file. Use Properties to retrieve data from this file in your code.

This link could be useful to load Properties object

http://www.dzone.com/snippets/loading-property-file