Method of realizing Base64 encoding and decoding in Java

Base64 and other similar coding algorithms are usually used to convert binary data into text data, which is designed to simplify storage or transmission. More specifically, Base64 algorithm is mainly used to convert binary data to ascii string format. Java language provides a very good implementation of Base64 algorithm,. This article will briefly describe how to use Base64 and how it works.

Role of Base64: it is not encryption. Its main purpose is to convert some binary numbers into ordinary characters for network transmission. Because some binary characters are control characters in the transmission protocol, they cannot be transmitted directly and need to be converted.

The first method is to use classes that are not exposed in Java through reflection:

The second way:

Use commons codec jar

The third way:

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