Some will also remember Java 8 for introducing various small but useful features such as the Base64 API. This post answers these questions. Base64 is a binary-to-text encoding scheme that represents binary data in a printable ASCII string format by translating it into a radix representation. Each Base64 digit represents exactly 6 bits of binary data. Base64 is used to prevent data from being modified while in transit through information systems, such as email, that might not be 8-bit clean they might garble 8-bit values. For example, you attach an image to an email message and want the image to arrive at the other end without being garbled.
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Comment 3. The lack of Base64 encoding API in Java is, in my opinion, by far one of the most annoying holes in the libraries. Finally Java 8 includes a decent API for it in the java. The entry point to Java 8's Base64 support is the java.
Base64 class. It provides a set of static factory methods used to obtain one of the three Base64 encodes and decoders:. Here is a sample usage:. It can't get simpler than that and, unlike in earlier versions of Java, there is any need for external dependencies commons-codec , Sun classes sun. However it gets even better. See the following example:. The following example generates a block of text this is needed just to make sure we have enough 'body' to encode into more than 76 characters and encodes it using the MIME encoder:.
All encoders and decoders created by the java. Base64 class support streams wrapping - this is a very elegant construct - both coding and efficiency wise since no redundant buffering are needed - to stream in and out buffers via encoders and decoders. The sample bellow illustrates how a FileOutputStream can be wrapped with an encoder and a FileInputStream is wrapped with a decoder - in both cases there is no need to buffer the content:.
See the original article here. Over a million developers have joined DZone. Let's be friends:. Base64 Encoding in Java 8. DZone 's Guide to. Free Resource. Like 4. Join the DZone community and get the full member experience. Join For Free. The java. This can be text, image, video or any other stream. There is no need to buffer the content of the file just for decoding it.
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Basic Type Base64 Encoding and Decoding in Java
Comment 3. The lack of Base64 encoding API in Java is, in my opinion, by far one of the most annoying holes in the libraries. Finally Java 8 includes a decent API for it in the java. The entry point to Java 8's Base64 support is the java. Base64 class. It provides a set of static factory methods used to obtain one of the three Base64 encodes and decoders:.
Java Base64 Encode and Decode
The encoder does not add any line feed line separator character. The decoder rejects data that contains characters outside the base64 alphabet. No line separator is added to the end of the encoded output. All line separators or other characters not found in the base64 alphabet table are ignored in decoding operation. Unless otherwise noted, passing a null argument to a method of this class will cause a NullPointerException to be thrown. Since: 1.
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Base64 Encoding in Java 8
Java provides a class Base64 to deal with encryption. You can encrypt and decrypt your data by using provided methods. You need to import java. Base64 in your source file to use its methods. This class provides three different encoders and decoders to encrypt information at each level. You can use these methods at the following levels. The encoder does not add any line separator character.