public void sendEmail(EmailBuilder builder) { // 收件人电子邮箱 String to = builder.getReceiver(); // 发件人电子邮箱 String from = builder.getSender(); // 获取系统属性 Properties properties = System.getProperties(); // 设置邮件服务器 properties.setProperty("mail.smtp.host", builder.getHost()); properties.put("mail.smtp.port", builder.getPort()); properties.put("mail.smtp.auth", builder.authNeeded()); // 获取默认session对象 Session session = Session.getDefaultInstance( properties, new Authenticator() { public PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(from, builder.getToken()); // 发件人邮件用户名、密码 } }); try { // 创建默认的 MimeMessage 对象 MimeMessage message = new MimeMessage(session); // Set From: 头部头字段 message.setFrom(new InternetAddress(from)); message.addRecipients( Message.RecipientType.TO, new InternetAddress[] {new InternetAddress(to), new InternetAddress(to)}); // Set Subject: 头部头字段 message.setSubject(builder.getTitle()); // 设置消息体 message.setText(builder.getContent()); // 发送消息 Transport.send(message); System.out.println("Sent message successfully....from Java Mail"); } catch (MessagingException mex) { mex.printStackTrace(); } }