String original = "It's a secret that C++ developer are better than Java" īyte bytes = original.getBytes( StandardCharsets.UTF_8) In order to decode just reverse the process, get the Decoder, pass the encoded String, receive the byte array and convert it to String using a new String(byte) constructor, make sure you use the same character encoding. call the encodeToString(byte), result is your base 64 encoded String convert String to byte array, use StandardCharSet.UTF_8 instead of "UTF-8" String get the Basic encder by calling Base64.getEncoder() In order to encode a string in Base64 using this Encoder follow the below steps
Now lets some example of base64 encoding and decoding in Java 8Īs I said before, the Basic encoder uses + and \ along with alphabets and digits.
Base64 encoding java free#
You can further see these free Java online courses to learn more about basic and MIME base64 encoding in Java 8. You can use the Base64.getMimeEncoder() method to retrieve a MIME Base64 encoder. Similarly, The MIME encoder generates a Base64 encoded String using the basic alphabets (A-Za-Z0-9) but in a MIME-friendly format: each line of the output is no longer than 76 characters and ends with a carriage return followed by a linefeed (\r\n), which is not the case with Basic base64 encoding. You can use the Base64.getUrlEncoder() method to retrieve a URL base encoder in Java 8. The URL base64 encoder instead uses - and _ (minus and underscore) to encode a String, which can then be safely attached to a URL. it uses "\" as one of the encoding characters, which is a valid character in URL and PATH. The reason for that is the character used in Basic encoding is not URL safe or filename e.g. JDK 8 Base64 class provides three types of encoder and decoder: MD5 or RSH-SHA, Base64 is the best for simple encoding needs. Even though there are more advanced encoding and encryption schemes available e.g. The base64 is one of the oldest encoding schemes, which prevents misuse of data by encoding into ASCII format. The process which converts the original String to something else is known as encoding and the reverse process to convert an encoded String to the original content is known as decoding. The Base64 Encoding is an encoding scheme that uses 64 printable characters (A-Za-z0-9+/) to replace each character in the original String in an algorithmic way so that it can be decoded later.
I'll tell you what is the difference between the Basic, URL, and MIME Base64 encoder and why you need it in this article, but before that let's revise what is base64 encoding itself? basic, URL and MIME to support different needs. The JDK 8 API also provides different types of Base64 encoders e.g. You can use Base64.Encoder to encode a byte array or String and Base64.Decoder to decode a base64 encoded byte array or String in Java 8. The JDK 8 API contains a Base64 class in java.util package which supports both encoding and decoding text in Base64.
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