附件文件名在電子郵件中顯示爲「mime」

當我附加的文件具有長文件名時，電子郵件中的文件名顯示爲「mime」而不是實際的文件名。附件的文件名可以有多長時間有限制？還是這個問題是由別的東西引起的？附件文件名在電子郵件中顯示爲「mime」

下面的代碼：

java.util.Properties properties=System.getProperties(); 
properties.put("mail.smtp.host",smtpHost); 
Session session=Session.getDefaultInstance(properties, null); 

MimeMessage message = new MimeMessage(session); 
Address fromAddress=new InternetAddress(from); 
message.setFrom(fromAddress); 
Address[] toAddresses=InternetAddress.parse(to); 
message.setRecipients(Message.RecipientType.TO, toAddresses); 
Address[] ccAddresses=InternetAddress.parse(cc); 
message.setRecipients(Message.RecipientType.CC, ccAddresses); 
Address[] bccAddresses=InternetAddress.parse(bcc); 
message.setRecipients(Message.RecipientType.BCC, bccAddresses); 
message.setSubject(subject);      

//Start - Send HTML Message      
MimeBodyPart mbpa2 = new MimeBodyPart(); 
mbpa2.setText(body); 
mbpa2.addHeaderLine("Content-Type: text/html; charset=\"iso-8859-1\""); 
mbpa2.addHeaderLine("Content-Transfer-Encoding: quoted-printable");                
Multipart mp2 = new MimeMultipart("alternative");      
mp2.addBodyPart(mbpa2);      


// attach the files to the message 
if (attachments != null && attachments.length > 0) 
{ 
    for (String filename:attachments) 
    { 
     FileDataSource fds = new FileDataSource(filename); 
     MimeBodyPart mbp3 = new MimeBodyPart(); 
     mbp3.setDataHandler(new DataHandler(fds)); 
     mbp3.setFileName(fds.getName());        
     // attach the file to the message 
     mp2.addBodyPart(mbp3);               
    } 
} 
// End of file attachment 

message.setContent(mp2);      
//End - Send HTML Message 

Transport transport=session.getTransport("smtp"); 
transport.connect(smtpHost, "", ""); 
transport.sendMessage(message, message.getAllRecipients()); 
transport.close();

來源

2016-09-15 Winnamine

沒有限制，但長文件名會被不同的編碼，如果你有一箇舊的郵件可能不明白，編碼，用一些通用的名稱來代替。您可以將系統屬性mail.mime.encodeparameters設置爲false以禁用此編碼。

來源

2016-09-15 18:23:25

附件文件名在電子郵件中顯示爲「mime」

回答

相關問題