从我的应用程序中，我发送带有附件的邮件。 完整的代码在这里
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。
那么应该使用多部分设置来接收同时包含文本、html 和附件的电子邮件吗？
如果您希望邮件同时包含替代部分和附件，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。 该多部分的第一个正文部分应该是多部分/替代部分。 外部多部分的第二个主体部分应该是附件。 内部多部分包含纯文本和 html 正文部分。
试试这个：
public int sendMailWithSingleAttachment(String to, String subject, String body, String fileName, String sendFileName) {
final String username = "Your Username";
final String password = "Your Password";
Properties props = new Properties();
props.put("mail.smtp.user", username);
props.put("mail.smtp.host", "smtp.live.com");
props.put("mail.smtp.port", "25");
props.put("mail.debug", "true");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.EnableSSL.enable", "true");
props.setProperty("mail.smtp.port", "587");
props.setProperty("mail.smtp.socketFactory.port", "587");
Session session = Session.getInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress(username));
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to));
message.setSubject(subject);
message.setText(body);
BodyPart messageBodyPart = new MimeBodyPart();
Multipart multipart = new MimeMultipart();
BodyPart htmlPart = new MimeBodyPart();
htmlPart.setContent("<html>hello</html>", "text/html");
DataSource source = new FileDataSource(fileName);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(sendFileName);
multipart.addBodyPart(messageBodyPart);
multipart.addBodyPart(htmlPart);
message.setContent(multipart);
Transport.send(message);
return 1;
} catch (Exception e) {
return 0;
}
}
请根据您的服务提供商使用端口，我正在使用 Outlook。使用的库是java邮件。