java电子邮件附件在正文中以纯文本形式发送

java电子邮件附件在正文中以纯文本形式发送,java,email,jakarta-mail,Java,Email,Jakarta Mail,我在使用java邮件(1.4.6)通过java电子邮件发送附件时遇到问题。似乎当我附加任何类型的文档并发送它时,收件人会在正文中获得纯文本格式的文件。而不是,你猜到了,像你期望的那样发送整个文件,而不会干扰正文 代码 try { // Create a message MimeMessage message = new MimeMessage(session); message.setFrom(new InternetAddre

我在使用java邮件(1.4.6)通过java电子邮件发送附件时遇到问题。似乎当我附加任何类型的文档并发送它时,收件人会在正文中获得纯文本格式的文件。而不是,你猜到了,像你期望的那样发送整个文件,而不会干扰正文

代码

    try 
    {

        // Create a message
        MimeMessage message = new MimeMessage(session);
        message.setFrom(new InternetAddress(username));
        message.setRecipients(Message.RecipientType.TO,
                InternetAddress.parse(Compose.to));
        message.setSubject(Compose.subject);
        //message.setText(Compose.body);
        //If there are no CC's then skip it. This if seemed to decrease send time.
        if(Compose.cc != null)
        {
            message.setRecipients(Message.RecipientType.CC, InternetAddress.parse(Compose.cc));
            message.saveChanges();
        }
        else
            message.saveChanges();

        /*
         * For adding the attached file to the email. This time the if
         * statement is used to stop the email attachment process if there
         * is none. Other wise due to the way I've set it up it'll try to
         * send file path and file name as null, and we fail an otherwise valid email.
         */

        if(Compose.filename != null)
        {
            String file = Compose.filepath;
            String fileName = Compose.filename;

            Multipart multipart = new MimeMultipart();
            BodyPart messageBodyPart = new MimeBodyPart();
            DataSource source = new FileDataSource(file);
            messageBodyPart.setDataHandler(new DataHandler(source));
            messageBodyPart.setFileName(fileName);
            multipart.addBodyPart(messageBodyPart);

            BodyPart messageBodyPart2 = new MimeBodyPart();
            messageBodyPart2.setText(Compose.body);
            multipart.addBodyPart(messageBodyPart2);

            message.setContent(multipart);
        }
        else
        {
            message.setText(Compose.body);
            message.saveChanges();
        }

        //Send the message by javax.mail.Transport .            
        Transport tr = session.getTransport("smtp");            // Get Transport object from session        
        tr.connect(smtphost, username, password);               // We need to connect
        tr.sendMessage(message, message.getAllRecipients());    // Send message

        //Notify the user everything functioned fine.
        JOptionPane.showMessageDialog(null, "Your mail has been sent.");

    } 
考虑到这一点,我记得
FileDataSource()
是一个重载语句,使用字符串或文件类型作为参数,尝试了这两种方法,得到了相同的结果,但现在我将对文件类型进行更多的实验


编辑:经过更多测试后,我注意到有时文件不会与发送时正文中的内容一起出现。

您将附件设置为正文的第一部分。它必须是身体的第二部分

也可以考虑升级和使用该方法来附加文件。

< p>对于身体和附件的每个部分。attachFile方法将为您执行此操作。避免使用JavaMail 1.4.6以支持最新版本,或者至少使用JavaMail 1.4.7,其中包含JavaMail 1.4.6已知问题的修复程序