How to encode decode String in Java base64 Encoding? Example

Encoding and Decoding of String in Java using base64 are extremely easy if you are using Apache commons code open source library. it provides convenient static utility methods Base64.encodeBase64(byte[]) and Base64.decodeBase64(byte []) for converting binary data into base64 encoded binary Stream and then decoding back from encoded data in base64 encoding mechanism. Many times we need to encode sensitive data be it binary String format transferring over a socket or transferring or storing data in XML files. Though there are other open-source libraries available that provide support to encode any String into base64 like MimeUtil from javax.mail package but Apache commons-codec package is really handy and doesn't add a lot of extra stuff. Its API is also very neat and clean. In this article, we will see how to encode and decode String into base64 encoding.
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