Encoding method, decoding method, encoding device and decoding device

Abstract

Embodiments of the invention provide an encoding method, a decoding method, an encoding device and a decoding device. The encoding method comprises the following steps: acquiring to-be-encoded data, wherein the to-be-encoded data is a binary character string; and encoding the to-be-encoded data according to base-64 encoding rules to get encoding data corresponding to the to-be-encoded data, wherein the encoding data is a base-64 encoding character string, and the 64 encoding rules employ the following 64 characters: 0-9, @, A to Z, _, and a to z. On the basis of shortening the length of the to-be-encoded data and saving the storage space, the encoding method in the embodiment of the invention is of higher compatibility because all the characters in the character set employed by the encoding method can be used as a file name under the Linux operating system and the Windows operating system, and the characters '@' and '_' can be used directly in shell and regular expressions and are compatible with code statements in the common language C / C++ / Java.

Description

technical field [0001] Embodiments of the present invention relate to data communication technologies, and in particular, to an encoding and decoding method, an encoding device, and a decoding device. Background technique [0002] In big data scenarios, applications such as log text and K-means contain a large number of character numbers. Character numbers refer to characters that can be displayed and printed in text and are stored in the form of strings. Character numbers take up more storage space than numeric numbers. For example, the decimal number 255 only needs 1 byte if it is stored as a numeric number, because 1 byte can store 256 different states (0 ~255). If it is stored as a character number, 3 bytes are required. At this time, only 10 states (0-9) are used for each byte, and a large number of states are wasted. [0003] In order to reduce the storage space of character numbers, in the prior art, each character number can store more states by increasing the base...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide an encoding and decoding method, an encoding device, and a decoding device to solve the problem that some characters in the 64-ary encoding method in the prior art cannot be used as file names under the linux operating system and the windows operating system, and the ambiguity problem

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