无法从 javax.mail.message 获取没有扩展名的电子邮件附件
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。 如果电子邮件包含带有扩展名的附件,则它可以正常工作。但当附件没有扩展名时,message.getFileName() 只会返回 null。
Help please to solve my problem.
I have a function that find email content and attachments:
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 is POJO.
If email has attachments that have extensions it works perfectly. But when attachments have no extensions, message.getFileName() simply returns null.
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我解决了这个问题。
它必须
代替
第二行。
I solved this problem.
It must be
instead of
in second line.