import?sun.misc.BASE64Decoder;?
//?將?s?進行?BASE64?編碼?
public?static?String?getBASE64(String?s)?{?
if?(s?==?null)?return?null;?
return?(new?sun.misc.BASE64Encoder()).encode(?s.getBytes()?);?
}?
//?將?BASE64?編碼的字符串?s?進行解碼?
public?static?String?getFromBASE64(String?s)?{?
if?(s?==?null)?return?null;?
BASE64Decoder?decoder?=?new?BASE64Decoder();?
try?{?
byte[]?b?=?decoder.decodeBuffer(s);?
return?new?String(b);?
}?catch?(Exception?e)?{?
return?null;?
}?
}