Trying to convert a byte[] to base64 string using
org.apache.commons.codec.binary.Base64..For this my java code looks like:
base64String = Base64.encodeBase64URLSafeString(myByteArray);
But what i see is some invalid characters in the generated base64 string..
Why do I see these ____ lines in my generated base64 String?
Is it a valid string?
Note the length of the generated string is dividable by four.
have you tried with the encodeBase64String method instead of using encodeBase64URLSafeString ?
encodeBase64URLSafeString:
Encodes binary data using a URL-safe variation of the base64 algorithm but does not chunk the output. The url-safe variation emits - and _ instead of + and / characters.
encodeBase64String:
Encodes binary data using the base64 algorithm but does not chunk the output. NOTE: We changed the behaviour of this method from multi-line chunking (commons-codec-1.4) to single-line non-chunking (commons-codec-1.5).
Use
String sCert = javax.xml.bind.DatatypeConverter.printBase64Binary(pk);
This may be helpful
sun.misc.BASE64Encoder encoder = new sun.misc.BASE64Encoder();
encoder.encode(byteArray);
sun.misc package hierarchy is not for public use.
sun.miscyou've got (at least) two flavours of base64, the original one using '+' and '/' in addition to alphanumeric characters, and the "url safe" one, using "-" and "_" so that the content can be enclosed in a URL (or used as a filename, btw).
It looks like you're using a base64 encoder that has been turned into "url-safe mode".
apache's javadoc for URLSafeString()
Oh, and '_' being the last character of the base64 alphabet, seeing strings of "____" means you've been encoding chunks of 0xffffff ... , just like seeing "AAAAAA" means there's a lot of consecutive zeroes.
If you want to be convinced that it's a normal case, just pick your favourite hexadecimal dumper/editor and check what your binary input looked like.
/ and replcaed the econding method with encodeBase64URLSafeString to avoid slashes.. Then it all started with _.. All i need to know is the above is a valid base64 string ?Kindly suggest.
By the below process you can convert byte array to Base64
// Convert a byte array to base64 string
byte[] bytearray= new byte[]{0x12, 0x23};
String s = new sun.misc.BASE64Encoder().encode(bytearray);
// Convert base64 string to a byte array
bytearray = new sun.misc.BASE64Decoder().decodeBuffer(s);
Edit:
Please check for guide below link commons apache
byte[]to string is a single methid which i have already provided in my question...