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我想在用戶單擊按鈕時發送郵件。但是,當我點擊相同的再次發生異常喜歡使用JavaMail庫發送郵件會在第二個郵件中顯示異常
郵件異常:無法連接到SMTP主機:smtp.gmail.com端口:587
屬性代碼:
props = new Properties();
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.socketFactory.port", "465");
props.put("mail.smtp.socketFactory.class","javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.port", "587");
消息代碼:
session =
Session.getDefaultInstance(
props,
new javax.mail.Authenticator() {
protected javax.mail.PasswordAuthentication getPasswordAuthentication() {
return new javax.mail.PasswordAuthentication(
MailIntegrationFromAddress.getText().trim(),
MailIntegrationFromAddressPassword.getText().trim()); // change accordingly
}});
try {
message.setFrom(new InternetAddress(MailIntegrationFromAddress.getText()));
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
message.setSubject("Subject type");
BodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText("Message Body");
Multipart multipart = new MimeMultipart();
multipart.addBodyPart(messageBodyPart);
messageBodyPart = new MimeBodyPart();
String filename = FileLocation.getText();
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
multipart.addBodyPart(messageBodyPart);
message.setContent(multipart);
message.saveChanges();
setCursor(new Cursor(Cursor.WAIT_CURSOR));
Transport.send(message);
setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
JOptionPane.showMessageDialog(null, "Mail sent Successfully... :-)");
的郵件功能工作正常第一次,但第二次調用失敗。
郵更多的代碼,請。 – Aubin
@Aubin,謝謝,我添加了完整的代碼。 –
看來你重用了消息對象。這是一個好習慣嗎?嘗試實例化一條新消息。 – Aubin