12/20/2023 0 Comments Base64 encoding with 64 length basic3.6 static Base64.Decoder getUrlDecoder() Returns a Base64.Encoder that encodes using the MIME type base64 encoding scheme with specified line length and line separators. 3.5 static Base64.Encoder getMimeEncoder(int lineLength, byte lineSeparator) Returns a Base64.Encoder that encodes using the MIME type base64 encoding scheme. 3.4 static Base64.Encoder getMimeEncoder() ![]() Returns a Base64.Decoder that decodes using the MIME type base64 decoding scheme. 3.3 static Base64.Decoder getMimeDecoder() Returns a Base64.Encoder that encodes using the Basic type base64 encoding scheme. Returns a Base64.Decoder that decodes using the Basic type base64 encoding scheme. Use the below methods to get the right encoders and decoders for each type. It has two static inner classes and those are Base64.Encoder, Base64.Decoder. Java 8 Base64 Methodsīase64 is a base class for encoding and decoding. All of the classes are related to this are in 64 package. In java 8, We can use mainly 3 types of encoding and decoding capabilities as standard. This simplifies the encode and decode process without using the other third-party libraries. 2. Java 8 – Base64 APIĪfter a long time, java 8 is added with the builtin base64 encoding and decoding functionalities as part of JDK 8. Understand the techniques on how to encode and decode base64 in java. In this article, you’ll learn the different ways to do the base 64 encoding and decoding techniques in java 8 and other alternative libraries such as apache common API utility. different ways to do base64 encoding and decoding functionality in java and using java 8 api, and also examples using the apache commons-codec. String mimeEncodedStr = Base64.getMimeEncoder().encodeToString(bytes) ![]() We can use the getMimeEncoder() and the encodeToString() methods for the encoding. Note that no line separator is present at the end of the encoded string. In the encoded output, each line contains a maximum of 76 characters.Įach line ends with a carriage return( \r) followed by a linefeed( \n) as the line separator. MIME stands for Multipurpose Internet Mail Extension, and the Base64 class uses the Base64 Alphabet for its encoding and decoding operations. ("Decoded URL: " + decodedUrl) Įncoded URL: aHR0cHM6Ly9nby5qYXZhLz9pbnRjbXA9Z29qYXZhLWJhbm5lci1qYXZhLWNvbQ=ĭecoded URL: Base64 MIME Encoding and Decoding String decodedUrl = new String(decodedUrlBytes) ("Encoded URL: " + encodedUrl) īyte decodedUrlBytes = Base64.getUrlDecoder().decode(encodedUrl) String encodedUrl = Base64.getUrlEncoder().encodeToString(urlToEncode.getBytes()) Again, we can use the decode() method with this decoder. Similarly, we have a getUrlDecoder() method that returns a URL decoder. Then, we can use the encodeToString() method as we did in the previous section. We can use the getUrlEncoder() method to obtain a Base64 URL encoder. String encodedStr = Base64.getEncoder().withoutPadding().encodeToString(bytesToEncode) //encoding without paddingīase64 class handles URL encoding and decoding by using the URL and Filename safe Base64 Alphabet. If we don't want this padding, we can use the withoutPadding() method on the encoder. String encodedStr = Base64.getEncoder().encodeToString(bytesToEncode) //Encoding with padding We can see the two equals sign(=) at the end of the encoded string. The encoding performed in the previous section adds additional padding character( =) if the encoded string's length is not a multiple of three. ("Decoded String: " + decodedStr) ĭecoded String: Hello World Base64 Encoding Without Padding String decodedStr = new String(decodedByteArr) ("Encoded String: " + encodedStr) īyte decodedByteArr = Base64.getDecoder().decode(encodedStr) It will take an encoded string as input and returns the decoded string. Then, we will use the decode() method of the decoder. To decode an encoded string, we will use Base64.Decoder returned by the getDecoder() method. String encodedStr = Base64.getEncoder().encodeToString(bytesToEncode) It takes a byte array as input and returns an encoded string.īyte bytesToEncode = strToEncode.getBytes() Next, we will use the encodeToString() method. We will use the getEncoder() method that returns a simple Base64.Encoder.Īs discussed, this encoder uses the Basic type base64 encoding scheme. It will not add any line separators to the encoded string. The Basic encoder uses the Base64 Alphabet for encoding and decoding. In this tutorial, we will learn Base64 encoding and decoding using the 64 class and the Apache Commons library. ![]() This class supports three types of Base64 encoding - Basic, URL, and Filename Safe, and MIME. The Base64 class is part of java.util class and provides static methods for Base64 encoding and decoding scheme.
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