问题描述
JavaMail 指定了一组可以设置为配置 **TP 连接的属性.要使用 STARTTLS,需要设置以下属性
JavaMail specifies a bunch of properties that can be set to configure an **TP connection. To use STARTTLS it is necessary to set the following property
mail.smtp.starttls.enable=true
在哪里指定用户名/密码以使用 smtp 服务?是否足以指定:
Where do I specify the username/password to use the smtp service? Is it enough to specify the:
mail.smtp.user=me mail.smtp.password=secret
或者我必须使用以下方式显式登录:
Or do I have to explicitely login using the:
transport.connect(server, userName, password)
是的,我已经尝试过这样做,似乎有必要使用 transport.connect(..) 进行连接.但如果是,mail.smtp.user &传递属性?他们还不足以将 smtp 与 starttls 一起使用吗?
Yes, I already tried to do this and it seems that it is necessary to connect using transport.connect(..). But if yes, what are the mail.smtp.user & pass properties for? Are they not enough to use smtp with starttls?
推荐答案
这是我的 sendEmail 方法,它使用 GMail smtp (JavaMail) 和 STARTTLS
Here is my sendEmail method which is using GMail smtp (JavaMail) with STARTTLS
public void sendEmail(String body, String subject, String recipient) throws MessagingException, UnsupportedEncodingException { Properties mailProps = new Properties(); mailProps.put("mail.smtp.from", from); mailProps.put("mail.smtp.host", smtpHost); mailProps.put("mail.smtp.port", port); mailProps.put("mail.smtp.auth", true); mailProps.put("mail.smtp.socketFactory.port", port); mailProps.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); mailProps.put("mail.smtp.socketFactory.fallback", "false"); mailProps.put("mail.smtp.starttls.enable", "true"); Session mailSession = Session.getDefaultInstance(mailProps, new Authenticator() { @Override protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(login, password); } }); MimeMessage message = new MimeMessage(mailSession); message.setFrom(new InternetAddress(from)); String[] emails = { recipient }; InternetAddress dests[] = new InternetAddress[emails.length]; for (int i = 0; i < emails.length; i++) { dests[i] = new InternetAddress(emails[i].trim().toLowerCase()); } message.setRecipients(Message.RecipientType.TO, dests); message.setSubject(subject, "UTF-8"); Multipart mp = new MimeMultipart(); MimeBodyPart mbp = new MimeBodyPart(); mbp.setContent(body, "text/html;charset=utf-8"); mp.addBodyPart(mbp); message.setContent(mp); message.setSentDate(new java.util.Date()); Transport.send(message); }