问使用javax.mail在Java中发送电子邮件时出现异常

EN

Properties props = new Properties();
props.put("mail.smtp.auth", true);
props.put("mail.smtp.starttls.enable", true);
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.ssl.enable",true);
props.put("mail.smtp.port", "465");

Session session = Session.getInstance(props,new Authenticator() {
    protected PasswordAuthentication getPasswordAuthentication() {
    return new PasswordAuthentication(USER,PASS);
    }
});

MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress("*******@gmail.com"));
message.setSubject("Email Subject");

message.addRecipient(Message.RecipientType.TO, 
                     new InternetAddress("******@gmail.com"));

MimeBodyPart messageBodyPart = new MimeBodyPart();
Multipart multipart = new MimeMultipart();
multipart.addBodyPart(messageBodyPart);
messageBodyPart = new MimeBodyPart();
messageBodyPart.setContent("<img src=\"image.gif\"/>","text/html");
multipart.addBodyPart(messageBodyPart);
messageBodyPart = new MimeBodyPart();
FileDataSource source = new FileDataSource(new File(ruta));
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName("picture.gif");
messageBodyPart.setDisposition("inline");
multipart.addBodyPart(messageBodyPart);
message.setContent(multipart);
Transport.send(message);