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If you switch without following these steps, most likely you will run into problems. Returns base64 representation of specified byte array. Java decode Java: Hello World Apache decode Apache: Hello World Java decode Apache: Hello World CONCLUSION: If you want to switch from Apache Base64 to Java, you must: Decode encoded text with your Apache decoder. The following program uses () method for encoding the specified byte array into a Base64 encoded string and () method for decoding back the Base64 encoded string into a newly allocated byte array. Method Summary static, encode(byte data, int off, int len). The Base64 class consists of static methods for obtaining instances of encoders ( Base64.Encoder) and decoders ( Base64.Decoder) for the Base64 encoding scheme. Java 8 finally provided support for Base64 Encoding and Decoding capabilities by providing Base64, Base64.Encoder and Base64.Decoder utility class.
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Encoding and decoding a string To encode a string: Get encoder using Base64.getEncoder (). Any character other than A-Za-z0-9+/ will be skipped. No line separator is added to the end of the encoded output. In Java 8, the Base64 class is added to the java.util package, which encodes the input with A-Za-z0-9+/ character set and decodes the encoded string. The encoded output must be represented in lines of no more than 76 characters each and uses a carriage return r followed immediately by a linefeed n as the line separator. Base64 is commonly used in a number of applications, including email via MIME and storing complex data in XML. Uses the 'The Base64 Alphabet' as specified in Table 1 of RFC 2045 for encoding and decoding operation. Unless otherwise noted, passing a null argument to a method of this class will cause a NullPointerException to be thrown.
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Instances of Base64.Encoder class are safe for use by multiple concurrent threads. Again, the decode () method works with a byte array and decodes the Base64 String into the original one: Decoder decoder Base64. This is as simple as getting an instance of the Base64.Encoder and input the string as bytes to. It has two nested classes to work with the encoding and decoding process. This is to ensure that the data remain intact without modification during transport. This class implements an encoder for encoding byte data using the Base64 encoding scheme as specified in RFC 4648 and RFC 2045. The encode () method would encode the input into a byte array. Java 8 has added 64 for Base-64 encoding and decoding purposes. Each Base64 digit represents exactly 6-bits of data that means 3 bytes can be represented by 4 6-bit Base64 digits.īase64 encoding schemes are commonly used when there is a need to encode binary data that needs to be stored and transferred over media that are designed to deal with textual data. This post will discuss Base64 Encoding and Decoding using plain Java, Guava, and Apache Commons.īase64 is a group of similar binary-to-text encoding schemes representing binary data in an ASCII string format by translating it into a radix-64 representation.