有关MimeUtility

import java.io.UnsupportedEncodingException;import com.sun.xml.internal.messaging.saaj.packaging.mime.internet.MimeUtility;public class Test {public static void main(String args[]) throws UnsupportedEncodingException {String subject = "申银万国_新股定价_300158(N振东)_娄圣睿，罗_＊＊_预计上市首日股价39-44元。 ";String encodedString = MimeUtility.encodeText(subject, "gbk", "b");String decodedString = MimeUtility.decodeText(encodedString);System.out.println(decodedString);}}

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from csdn: http://topic.csdn.net/u/20110222/12/08439bb8-9b2e-4145-a4e0-c9c02f800b51.html

it's about base64 encoding, just the usage.

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