Question

我正在尝试使用javamail发送html电子邮件。这是我的功能：

private void sendBCCEmailWithoutAttachments(ArrayList<String> recipients
            , String emailBody, final String senderEmail, final String senderPassword, String subject) {
        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.port", "587");


        Session session = Session.getDefaultInstance(props,
                new javax.mail.Authenticator() {
                    protected PasswordAuthentication getPasswordAuthentication() {
                        return new PasswordAuthentication(senderEmail, senderPassword);
                    }
                });
        session.setDebug(true);
        try {

            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress(senderEmail));
            String addressList = "";
            for (String st : recipients) {
                addressList = addressList+"," + st;
            }
            addressList = addressList.substring(1);
            message.setRecipients(Message.RecipientType.BCC,
                    InternetAddress.parse(addressList));
            message.setSubject(subject);

            Multipart multipart = new MimeMultipart();
            BodyPart messageBodyPart = new MimeBodyPart();
//            messageBodyPart.setHeader("Content-Type", "text/html");
            messageBodyPart.setText(emailBody);
            multipart.addBodyPart(messageBodyPart);
            message.setContent(multipart,"text/html");
            message.saveChanges();
            Transport.send(message);
            System.out.println("Done");
        } catch (MessagingException e) {
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }

从上面可以看出，我将message.saveChanges（）称为给定的here但它不起作用，这里消息头的内容类型仍然是text / plain。检查此成绩单（通过gmail中的show original）：

Received-SPF: pass (google.com: domain of someother@gmail.com designates 2607:f8b0:400e:c02::231 as permitted sender) client-ip=2607:f8b0:400e:c02::231;
Date: Wed, 18 Mar 2015 08:57:40 -0700 (PDT)
From: someother@gmail.com
Message-ID: <915430510.2.1426694244252.JavaMail.somegmail@Admin>
Subject: dub
MIME-Version: 1.0
Content-Type: multipart/mixed; 
    boundary="----=_Part_0_1477499235.1426694244225"

------=_Part_0_1477499235.1426694244225
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

<html>
    <head>
        <title></title>
    </head>
    <body>
        <p>
            Type in Text here and Click on <strong>Source button </strong>to get HTML Source Code.&nbsp;</p>
    </body>
</html>

------=_Part_0_1477499235.1426694244225--

要注意的是标题仍然是

------=_Part_0_1477499235.1426694244225
    Content-Type: text/plain; charset=us-ascii
    Content-Transfer-Encoding: 7bit

对于html正文，尽管设置为text / plain并执行saveChanges（）（请注意标题行已注释掉，但取消注释它们也会得到相同的结果）为什么会发生这种情况并解决方案？

修改 messageBodyPart.setText（someText，＆＃34; text / html＆＃34;）不存在。查看此图片。 enter image description here

我使用的是javamail 1.4.7。

Answer 1

添加

   MimeBodyPart messageBodyPart=new MimeBodyPart();       
   messageBodyPart.setContent(emailBody, "text/html");

   // Add an attachment
   attachmentBodyPart = new MimeBodyPart();
   attachmentBodyPart.setDataHandler(new DataHandler(attachment));
   attachmentBodyPart.setFileName(attachment.getName());
   multipart.addBodyPart(attachmentBodyPart);
   // and so on...

而不是

//            messageBodyPart.setHeader("Content-Type", "text/html");
              messageBodyPart.setText(emailBody);

无法使用javamail向Gmail发送HTML电子邮件

1 个答案: