java - 通过 Java 发送邮件时出现异常

Question

Java发送邮件时出现异常

异常(exception)是::

Exception in thread "main" java.lang.NoSuchMethodError: 
com.sun.mail.util.LineOutputStream.<init>(Ljava/io/OutputStream;Z)V
at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1648)
at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1906)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1134)
at javax.mail.Transport.send0(Transport.java:255)
at javax.mail.Transport.send(Transport.java:124)
at com.yodlee.SendMail.sendMail(SendMail.java:78)
at com.yodlee.SendMail.main(SendMail.java:32)

这是 Java 代码::

    Properties props = new Properties();
    props.put(SMTP_HOST_KEY,SMTP_HOST);

    Session session = Session.getDefaultInstance(props, new javax.mail.Authenticator() {
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(".....",
                    "#.......");
        }
    });

    try {
        MimeMessage message = new MimeMessage(session);
        message.setFrom(new InternetAddress(RECIPIENT_FROM));
        message.setSubject(SUBJECT);
        message.setSentDate(new Date());
        //message.setText("Test mails111");


        MimeBodyPart messageBodyPart = new MimeBodyPart();

        messageBodyPart.setContent(data, "text/html");
        Multipart multipart = new MimeMultipart();
        multipart.addBodyPart(messageBodyPart);
        message.setContent(multipart);
        Transport.send(message);
        System.out.println("Done");
    } catch (MessagingException e) {
        status = -1;
        throw new RuntimeException(e);
    }

我在 Transport.send(msg) 时遇到错误；我在这里使用的 jar ::smtp 1.6.0，Javax Mail 1.4.7，mailactivation

Answer 1

您的类路径中很可能有多个版本的 JavaMail 类。检查所有依赖项和应用程序服务器环境是否存在冲突。如果不止一个 jar 文件包含 javax.mail.* 或 com.sun.mail.* 类，您就有问题了。

并确保修复所有这些 common JavaMail mistakes , 并且一定要使用 latest version of JavaMail .