Java原生发送邮件

    /**
     * 发送邮件
     *
     * @param mailInfo
     * @param isTextType 是否是文本
     *
     * @throws Exception
     */
    public static boolean send(final MailInfo mailInfo, boolean isTextType) throws Exception {
        try {
            //添加邮件属性
            Properties prop = new Properties();
            prop.put("mail.smtp.host", mailInfo.getMailServerHost());
            prop.put("mail.smtp.auth", "true");
//            prop.put("mail.smtp.timeout", "-1");
            //验证密码
            Authenticator authenticator = new Authenticator() {
                @Override
                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication(mailInfo.getUserName(), mailInfo.getPassword());
                }
            };
            //获取 Email Session实例
            Session session = Session.getInstance(prop, authenticator);
            //内容设置
            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress(mailInfo.getFromAddress()));
            message.setRecipient(Message.RecipientType.TO, new InternetAddress(mailInfo.getToAddress()));
            message.setSubject(mailInfo.getSubject());
            if (isTextType) {
                message.setContent(mailInfo.getContent(), "text/plain;charset=UTF-8");
            } else {
                message.setContent(mailInfo.getContent(), "text/html;charset=utf-8");
            }
            message.setSentDate(new Date());
            //传输
            Transport tran = session.getTransport("smtp");
            try {
                Transport.send(message, message.getAllRecipients());
            } finally {
                tran.close();
            }
        } catch (MessagingException e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }