org.aoju.bus.core.key

Class HashID

java.lang.Object

org.aoju.bus.core.key.HashID

public class HashID
extends Object

Hashids用于从数字(如YouTube和Bitly)生成短散列, 数据库id,将它们用作忘记密码散列、邀请码、存储碎片号

Since:

JDK 1.8+

Version:

6.3.5

Author:

Kimi Liu

Field Summary

Fields

Modifier and Type	Field and Description
static long	MAX_NUMBER Max number that can be encoded with Hashids.

Constructor Summary

Constructors

Constructor and Description
HashID()
HashID(String salt)
HashID(String salt, int minHashLength)
HashID(String salt, int minHashLength, String alphabet)

Method Summary

Modifier and Type	Method and Description
static int	checkedCast(long value)
long[]	decode(String hash) Decrypt string to numbers
String	decodeHex(String hash) Decrypt string to numbers
String	encode(long... numbers) Encrypt numbers to string
String	encodeHex(String hexa) Encrypt hexa to string
static long	getDataCenterId(long maxDatacenterId) 获取数据中心ID,依赖于本地网卡MAC地址
String	getSalt()
String	getVersion() Get Hashid algorithm version.
static long	getWorkerId(long datacenterId, long maxWorkerId) 获取机器ID，使用进程ID配合数据中心ID生成 依赖于本进程ID或进程名的Hash值

Methods inherited from class java.lang.Object

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

Field Detail

MAX_NUMBER

public static final long MAX_NUMBER

Max number that can be encoded with Hashids.

See Also:

Constant Field Values

Constructor Detail

HashID

public HashID()

HashID

public HashID(String salt)

HashID

public HashID(String salt,
              int minHashLength)

HashID

public HashID(String salt,
              int minHashLength,
              String alphabet)

Method Detail

checkedCast

public static int checkedCast(long value)

getDataCenterId

public static long getDataCenterId(long maxDatacenterId)

获取数据中心ID,依赖于本地网卡MAC地址

此算法来自于mybatis-plus#Sequence

Parameters:

maxDatacenterId - 最大的中心ID

Returns:

数据中心ID

getWorkerId

public static long getWorkerId(long datacenterId,
                               long maxWorkerId)

获取机器ID，使用进程ID配合数据中心ID生成 依赖于本进程ID或进程名的Hash值

此算法来自于mybatis-plus#Sequence

Parameters:

datacenterId - 数据中心ID

maxWorkerId - 最大的机器节点ID

Returns:

the long

encode

public String encode(long... numbers)

Encrypt numbers to string

Parameters:

numbers - the numbers to encrypt

Returns:

the encrypt string

decode

public long[] decode(String hash)

Decrypt string to numbers

Parameters:

hash - the encrypt string

Returns:

decryped numbers

encodeHex

public String encodeHex(String hexa)

Encrypt hexa to string

Parameters:

hexa - the hexa to encrypt

Returns:

the encrypt string

decodeHex

public String decodeHex(String hash)

Decrypt string to numbers

Parameters:

hash - the encrypt string

Returns:

decryped numbers

getVersion

public String getVersion()

Get Hashid algorithm version.

Returns:

id algorithm version implemented.

getSalt

public String getSalt()