如何添加一个MimeMultipart到另一个？ [英] How to add a MimeMultipart to another one?

问题描述

这可能是一个非常愚蠢的问题，但我正在尝试撰写一封电子邮件，例如建议此处

This is possibly a very stupid question, but I'm trying to compose an Email message like suggested here

• multipart / mixed
  
  
  
  
  • multipart / alternative
    
    
    
    
    • text / html
    
    
    • text / plain
    
    

    所以我有

    MimeMultipart altPart = new MimeMultipart("alternative");
    
    BodyPart textPart = new MimeBodyPart();
    textPart.setContent("someText", "text/plain");
    altPart.addBodyPart(textPart);
    
    BodyPart htmlPart = new MimeBodyPart();
    htmlPart.setContent("someHtml", "text/html");
    altPart.addBodyPart(htmlPart);
    
    MimeMultipart mixedPart = new MimeMultipart("multipart/mixed");
    

    ，需要将 altPart 添加到code> mixedPart ，但我不能唯一的添加方法只接受 BodyPart 。 WTF？

    and need to add altPart to mixedPart, but I can't as the only adding method accepts BodyPart only. WTF?

    ^{请注意，与此处不同}

    推荐答案

    你需要包装你的 MimeMultipart 另一个 MimeBodyPart ，使用 MimeBodyPart.setContent（Multipart mp）方法。然后，您可以将 MimeBodyPart 添加到 mixedPart Object：

    You need to wrap your MimeMultipart in another MimeBodyPart, using the MimeBodyPart.setContent(Multipart mp) method. Then you can add the MimeBodyPart to the mixedPart Object:

    MimeMultipart alternativeMultipart = new MimeMultipart("alternative");
    
    BodyPart textPart = new MimeBodyPart();
    textPart.setContent("someText", "text/plain");
    alternativeMultipart.addBodyPart(textPart);
    
    BodyPart htmlPart = new MimeBodyPart();
    htmlPart.setContent("someHtml", "text/html");
    alternativeMultipart.addBodyPart(htmlPart);
    
    MimeBodyPart alternativeBodyPart = new MimeBodyPart();
    alternativeBodyPart.setContent(alternativeMultipart);
    
    MimeMultipart mixedMultipart = new MimeMultipart("mixed");
    mixedMultipart.addBodyPart(alternativeBodyPart);
    
    MimeBodyPart textPart1 = new MimeBodyPart();
    textPart1.setContent("someOtherText", "text/plain");
    mixedMultipart.addBodyPart(textPart1);
    

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