How to decode the attachment file in [MIME] java mail

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I am unable to decode the attachment. It something like =?utf-8?B?MS5qcGc= which is encoded. I need to decode that attachment. The java code i am using to decode

Java

private static String decodeName(String name) throws Exception {
  if (name == null || name.length() == 0) {
   return "unknown";
  }
  String ret = java.net.URLDecoder.decode(name, "UTF-8");

  // also check for a few other things in the string:
  ret = ret.replaceAll("=\\?utf-8\\?q\\?", "");
  ret = ret.replaceAll("\\?=", "");
  ret = ret.replaceAll("=20", " ");

  return ret;
 }

Please help me out for decoding.

Posted 14-May-12 3:19am

Asutosha

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

TorstenH. · Answer 1 · 2012-05-14T03:44:00

That is a UTF-8 encoded String:

Encoding:

Java

String strName ="Attachment";
try { strName = MimeUtility.encodeText(oAttachment.getName(),"utf-8",null); }
catch (UnsupportedEncodingException oException) { LOGGER.error(oException); }

Decoding:

Java

String strDecoded = MimeUtility.decodeText(strEncoded);

EDIT: please delete that String modifying stuff. That is not needed and not a proper way to deal with string values.

How to decode the attachment file in [MIME] java mail

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How to decode the attachment file in [MIME] java mail

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