message.setSubject(subject);
message.setRecipients(Message.RecipientType.TO,
emailToInternetAddressArray(toEmailAddresses));
message.setRecipients(Message.RecipientType.CC,
emailToInternetAddressArray(ccEmailAddresses));
message.addFrom(InternetAddress.parse(fromAddress));
message.setSentDate(new Date());
BodyPart mainBody = new MimeBodyPart();
mainBody.setContent(content, "text/html;charset=gbk");
multipart.addBodyPart(mainBody);
for (Entry<String, String> e : mailAttachment.entrySet()) {