在 Aspose.Email 中读取邮件中的嵌入式附件

Aspose.Email - 从邮件中读取嵌入的电子邮件附件

有时，我们会收到包含其他电子邮件作为附件的邮件。这些嵌入的电子邮件是完整的消息，拥有自己的收件人列表、主题、正文，甚至附件。每条消息还可能再次包含嵌入的消息。使用 Aspose.Email Java，开发者可以将每个嵌入的邮件作为单独的消息进行访问。此示例演示了如何使用递归功能。

Java

 MailMessage message = MailMessage.load(dataDir + \"embedded.msg\", MessageFormat.getMsg());

for (int i = 0; i < message.getAttachments().size(); i++)

{

    Attachment att = (Attachment) message.getAttachments().get_Item(i);

    System.out.println("Attachment Name: " + att.getName());

    // Get the name of attachment. If msg subject contains characters like :, /, \ etc., replace with space

    // because windows cannot save files with these characters

    // also save first 50 characters as file name to avoid long file names

    String attFileName = att.getName().replace(".eml", "").replace(":", " ").replace("\\", " ").replace("/", " ").replace("?", "");

    if (attFileName.length() > 50)

    {

        attFileName = attFileName.substring(0, 50);

    }

    String attExt = (att.getName().substring(att.getName().lastIndexOf("."), att.getName().lastIndexOf(".") + 4));

    // Save the attachment to disk

    att.save(dataPath + attFileName + attExt);

    // Check if it is an orphaned text attachment file (ATT00001.txt....) and of type eml

    if ((attExt.equals(".eml")) || (att.getContentType().getMediaType().equals("text/plain") && att.getName().contains(".txt") == true && att.getName().contains("ATT") == true))

    {

        // Try to load this text file in MailMessage

        MailMessage attMsg = MailMessage.load(dataPath + attFileName + attExt, MessageFormat.getEml());

        // Call the function recursively to parse this message and attachments

        ParseMessage(attMsg);

    }

}

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在 Aspose.Email 中向邮件添加嵌入式图片 使用 MHTFormatOptions 显示或隐藏额外的打印页眉