cn.hutool.core.codec

Class Base32Codec

java.lang.Object

cn.hutool.core.codec.Base32Codec

All Implemented Interfaces:

Decoder<CharSequence,byte[]>, Encoder<byte[],String>

public class Base32Codec
extends Object
implements Encoder<byte[],String>, Decoder<CharSequence,byte[]>

Base32 - encodes and decodes RFC4648 Base32 (see https://datatracker.ietf.org/doc/html/rfc4648#section-6 )
base32就是用32（2的5次方）个特定ASCII码来表示256个ASCII码。
所以，5个ASCII字符经过base32编码后会变为8个字符（公约数为40），长度增加3/5.不足8n用“=”补足。
根据RFC4648 Base32规范，支持两种模式：

• Base 32 Alphabet (ABCDEFGHIJKLMNOPQRSTUVWXYZ234567)
• "Extended Hex" Base 32 Alphabet (0123456789ABCDEFGHIJKLMNOPQRSTUV)

Since:

5.8.0

Author:

Looly

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Base32Codec.Base32Decoder Base32解码器
static class	Base32Codec.Base32Encoder Bas32编码器

Field Summary

Fields

Modifier and Type	Field and Description
static Base32Codec	INSTANCE

Constructor Summary

Constructors

Constructor and Description
Base32Codec()

Method Summary

Modifier and Type	Method and Description
byte[]	decode(CharSequence encoded) 执行解码
byte[]	decode(CharSequence encoded, boolean useHex) 解码数据
String	encode(byte[] data) 执行编码
String	encode(byte[] data, boolean useHex) 编码数据

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSTANCE

public static Base32Codec INSTANCE

Constructor Detail

Base32Codec

public Base32Codec()

Method Detail

encode

public String encode(byte[] data)

Description copied from interface: Encoder

执行编码

Specified by:

encode in interface Encoder<byte[],String>

Parameters:

data - 被编码的数据

Returns:

编码后的数据

encode

public String encode(byte[] data,
                     boolean useHex)

编码数据

Parameters:

data - 数据

useHex - 是否使用Hex Alphabet

Returns:

编码后的Base32字符串

decode

public byte[] decode(CharSequence encoded)

Description copied from interface: Decoder

执行解码

Specified by:

decode in interface Decoder<CharSequence,byte[]>

Parameters:

encoded - 被解码的数据

Returns:

解码后的数据

decode

public byte[] decode(CharSequence encoded,
                     boolean useHex)

解码数据

Parameters:

encoded - base32字符串

useHex - 是否使用Hex Alphabet

Returns:

解码后的内容