Question

请帮助解决我的问题。我有一个查找电子邮件内容和附件的功能：

public void setContentAndAttachmentsList(GMailEmail gMailEmail, Part message) throws MessagingException, IOException {
    if (message.isMimeType("text/*") && StringUtils.isEmpty(message.getFileName())) {
        gMailEmail.setContent(message.getContent().toString());
        log.debug("Found text data. Set as body: " + message.getContent().toString());
    } else if (message.isMimeType(MULTIPART_MIME_TYPE)) {
        Multipart multipartMessage = (Multipart) message.getContent();
        for (int i = 0; i < multipartMessage.getCount(); i++) {
            BodyPart messagePart = multipartMessage.getBodyPart(i);
            setContentAndAttachmentsList(gMailEmail, messagePart);
        }
    } else if (StringUtils.isNotBlank(message.getFileName())) {
        MailAttachment attachment = new MailAttachment();
        attachment.setContentType(message.getContentType());
        log.debug("Attachment content type: " + message.getContentType());
        attachment.setName(message.getFileName());
        log.debug("Attachment file name: " + message.getFileName());
        if (message.getContent() instanceof InputStream) {
            attachment.setInputStream((InputStream) message.getContent());
        } else {
            attachment.setInputStream(IOUtils.toInputStream(message.getContent().toString(), UTF_8));
        }
        List<MailAttachment> attachmentsList = gMailEmail.getAttachmentsList();
        attachmentsList.add(attachment);
        gMailEmail.setAttachmentsList(attachmentsList);
        log.debug("Found attachment" + message.getFileName());
    }
}

GMailEmail是POJO。如果电子邮件包含具有扩展名的附件，则可以完美运行但是当附件没有扩展时，message.getFileName（）只返回null。

Answer 1

我解决了这个问题。一定是

StringUtils.isBlank(message.getFileName())

而不是

StringUtils.isEmpty(message.getFileName())

在第二行。

无法从javax.mail.message获取没有扩展名的电子邮件附件

1 个答案: