將圖片附加到使用java mail API發送的電子郵件中

Question

我有一個方法，我用來發送使用java的電子郵件。 我想知道如何將圖片附加到電子郵件的頂部？ 我嘗試使用MimeMessageParts或其他東西，我無法讓它工作？ 我希望能夠將BufferedImage作為參數傳遞給方法，並將其附加到頂部..任何幫助將不勝感激:)

public static void Send(final String username, final String password, 
    String recipientEmail, String ccEmail, String title, String message) 
    throws AddressException, MessagingException 
{

Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";

// Get a Properties object
Properties props = System.getProperties();
props.setProperty("mail.smtps.host", "smtp.gmail.com");
props.setProperty("mail.smtp.socketFactory.class", SSL_FACTORY);
props.setProperty("mail.smtp.socketFactory.fallback", "false");
props.setProperty("mail.smtp.port", "465");
props.setProperty("mail.smtp.socketFactory.port", "465");
props.setProperty("mail.smtps.auth", "true");


props.put("mail.smtps.quitwait", "false");

Session session = Session.getInstance(props, null);

// -- Create a new message --
final MimeMessage msg = new MimeMessage(session);

// -- Set the FROM and TO fields --
msg.setFrom(new InternetAddress(username + "@gmail.com"));
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipientEmail, false));

if (ccEmail.length() > 0) {
    msg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(ccEmail, false));
}

msg.setSubject(title);
msg.setText(message, "utf-8");
msg.setSentDate(new Date());

SMTPTransport t = (SMTPTransport)session.getTransport("smtps");

t.connect("smtp.gmail.com", username, password);
t.sendMessage(msg, msg.getAllRecipients());      
t.close();

}

Answer 1

1. 對於附件，您需要創建單獨的MimeBodyPart ，這是示例代碼，

    MimeBodyPart attachmentPart = new MimeBodyPart(); FileDataSource fileDataSource = new FileDataSource(filename) { @Override public String getContentType() { return "application/octet-stream"; } }; attachmentPart.setDataHandler(new DataHandler(fileDataSource)); 

2. 對於郵件文本，您需要另一個MimeBodyPart

    MimeBodyPart messagePart = new MimeBodyPart(); messagePart.setText(bodyText); 

3. 將這兩個MimeBodyPart組合成Multipart

    Multipart multipart = new MimeMultipart(); multipart.addBodyPart(messagePart); multipart.addBodyPart(attachmentPart); 

4. 最后，發送電子郵件

     ........... final MimeMessage msg = new MimeMessage(session); msg.setContent(multipart); Transport.send(msg); 

有關詳細信息，請參閱此鏈接 。