设置具有附件的电子邮件的Multipart [英] Setting Multipart for email that has attachment
问题描述
从我的应用程序,我发送有附件的邮件。完整的代码在这里
From my application i am send mails that has attachments. the complete code is here
public int sendMail(MailDraft mailDraftInstance, mailInstance, path){ //Send the mail
String mailSubject = mailDraftInstance.subject
String toAddress = mailDraftInstance.toAddress
String ccAddress = mailDraftInstance.ccAddress
String bccAddress = mailDraftInstance.bccAddress
String fromAddress = mailDraftInstance.fromAddress
String body = mailDraftInstance.body
String smtpUsername = 'myusername'
String smtpPassword = 'mypwd'
/*** set the SMTP properties and Authenticate*****/
Properties smtpMailProperties
Session mailSession
smtpMailProperties = mailInstance.getSmtpConnectionProperties()
mailSession = mailInstance.getMailSession(smtpMailProperties, smtpUsername, smtpPassword)
try {
/**** Set the Header *************/
User loggedInUser = User.get(SecurityContextHolder.context.authentication.principal.id)
Address address = new InternetAddress(mailDraftInstance.fromAddress);
Address replyAddress = new InternetAddress(mailDraftInstance.fromAddress);
Message message = new MimeMessage(mailSession);
message.setFrom(address);
//message.addFrom(address); //Set the from address with the logged in user email
message.setReplyTo(replyAddress)
/*** set Recipients*********/
String recipientType = 'TO'
setMailRecipients(message, toAddress, recipientType, toAddressError)
recipientType = 'CC'
setMailRecipients(message, ccAddress, recipientType, ccAddressError)
recipientType = 'BCC'
setMailRecipients(message, bccAddress, recipientType, bccAddressError)
message.setSubject(mailSubject);
Multipart multiPart = new MimeMultipart("alternative"); // Create an "Alternative" Multipart message
// Multipart multiPart = new MimeMultipart("mixed");
MimeBodyPart text = new MimeBodyPart();
MimeBodyPart html = new MimeBodyPart();
text.setText(body.replaceAll("\\<[^>]*>","").replaceAll(" "," ").replaceAll("&","&")); //set the text/plain version
html.setContent(Jsoup.parse(body).html(), "text/html"); //set the text/html version
multiPart.addBodyPart(text);
multiPart.addBodyPart(html);
/* // Set the Body
Multipart multiPart = new MimeMultipart();
MimeBodyPart messageHtml = new MimeBodyPart(); //Create a mime body
messageHtml.setContent(body, "text/html"); //set the content type as HTML
multiPart.addBodyPart(messageHtml);*/
// Add the Attachments
if(!mailDraftInstance.attachments.isEmpty()){
Mail.attachFiles(mailDraftInstance.attachments, multiPart, path)
}
int i=0;
mailDraftInstance.attachments.each{
i++
}
message.setContent(multiPart); //set the content
Transport.send(message); //send the mail
}catch (Exception e) {
if(e instanceof AddressException){
println "Email Recipient Address error" //Error with the TO Or CC Or BCC Adresss
return addressErrorType
}else{
println e //Other errors, may be with the SMTP server
println "Cannot send email as an error occurred"
return addressErrorType
}
}
return mailSentSuccessfully //mail sent successfully
}
public static attachFiles(def attachments, Multipart multiPart, String path){ //Attach files
attachments.each {
def attachmentId = it.id
String newFile= TrainingService.createFile(attachmentId, path)
MimeBodyPart fileAttachmentPart = new MimeBodyPart();
FileDataSource attachmentfile = new FileDataSource(newFile);
fileAttachmentPart.setDataHandler(new DataHandler(attachmentfile));
println "newFile============="+attachmentfile.getName()
fileAttachmentPart.setFileName(attachmentfile.getName());
multiPart.addBodyPart(fileAttachmentPart);
}
}
如果我设置
Multipart multiPart = new MimeMultipart("alternative");
某些客户端(yahoomail)没有收到附件..
some of the clients (yahoomail) does not receive attachments..
所以应该是Multipart设置来接收具有文本,HTML和附件的电子邮件?
so should be the Multipart setting to receive email that has got both text, html and attachments?
推荐答案
如果您想要一个消息包含替代部件和附件,则需要两个多部分,一个嵌套在另一个中。外部多部分应该是多部分/混合的。该多部分的第一个主体部分应该是多部分/替代部分。外部多部分的第二个主体部分应该是附件。内部multipart包含纯文本和html正文部分。
If you want a message contains both alternative parts and attachments, you need two multiparts, one nested in the other. The outer multipart should be multipart/mixed. The first body part of that multipart should be a multipart/alternative part. The second body part of the outer multipart should be the attachment. The inner multipart contains the plain text and html body parts.
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