解码UTF-8电子邮件主题？ [英] Decoding UTF-8 email subject?

问题描述

我有一个这样的字符串： =？utf-8？B？zr ...

I have a string in this form: =?utf-8?B?zr...

而且我想以适当的UTF-8编码获取文件的名称。在maven中央有一个库方法，会为我做这个解码，还是需要手动测试模式和解码base64？

And I want to get the name of the file in proper UTF-8 encoding. Is there a library method somewhere in maven central that will do this decoding for me, or will I need to test the pattern and decode base64 manually?

推荐答案

在MIME术语中，这些编码的块被称为编码字。查看 JavaMail中的javax.mail.internet.MimeUtility.decodeText 。 decodeText 方法将解码字符串中的所有编码字。

In MIME terminology, those encoded chunks are called encoded-words. Check out javax.mail.internet.MimeUtility.decodeText in JavaMail. The decodeText method will decode all the encoded-words in a string.

您可以从maven中获取

You can grab it from maven with

 <groupId>javax.mail</groupId>
 <artifactId>mail</artifactId>
 <version>1.4.4</version>

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