程序包 com.ajaxjs.util

类 HashHelper

java.lang.Object

com.ajaxjs.util.HashHelper

public class HashHelper
extends Object

字段概要

字段

修饰符和类型	字段	说明
static final String	HMAC_SHA1
static final String	HMAC_SHA256
static final String	MD5
static final String	SHA1
static final String	SHA256

构造器概要

构造器

构造器	说明
HashHelper(String algorithmName, byte[] input)
HashHelper(String algorithmName, String input)

方法概要

修饰符和类型	方法	说明
static String	calcFileMD5(byte[] bytes)	Calculate the MD5 of a file.
static String	calcFileMD5(InputStream in)	Calculate the MD5 of a file.
static HashHelper	getHmacMD5(String str, String key)	Generates HMAC-MD5 hash value for a string.
static String	getHmacSHA256(String str, String key, boolean isWithoutPadding)	Generates HMAC-SHA256 hash value for a string.
byte[]	getMac()	获取指定算法的 MAC 值（可设密钥）
byte[]	getMessageDigest()
static String	getSHA1(String str)	Generates SHA1 hash value for a string.
static String	getSHA256(String str)	Generates SHA256 hash value for a string.
byte[]	hash()	Do hash
String	hashAsBase64()	Get the result of hashed in BASE64
String	hashAsBase64(boolean isWithoutPadding)	Get the result of hashed in BASE64
String	hashAsStr()	Do hash
static String	md5(String str)	Generates MD5 hash value for a string.
HashHelper	setKey(String key)
HashHelper	setKeyBase64(String key)

从类继承的方法 java.lang.Object

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

字段详细资料

MD5

public static final String MD5

另请参阅:

• 常量字段值

SHA1

public static final String SHA1

另请参阅:

• 常量字段值

SHA256

public static final String SHA256

另请参阅:

• 常量字段值

HMAC_SHA1

public static final String HMAC_SHA1

另请参阅:

• 常量字段值

HMAC_SHA256

public static final String HMAC_SHA256

另请参阅:

• 常量字段值

构造器详细资料

HashHelper

public HashHelper(String algorithmName,
 byte[] input)

HashHelper

public HashHelper(String algorithmName,
 String input)

方法详细资料

getMessageDigest

public byte[] getMessageDigest()

setKey

public HashHelper setKey(String key)

setKeyBase64

public HashHelper setKeyBase64(String key)

getMac

public byte[] getMac()

获取指定算法的 MAC 值（可设密钥）

返回:

生成的 MAC 值

hash

public byte[] hash()

Do hash

返回:

The hash value in bytes.

hashAsStr

public String hashAsStr()

Do hash

返回:

The hash value in hex string, lowercase.

hashAsBase64

public String hashAsBase64(boolean isWithoutPadding)

Get the result of hashed in BASE64

参数:

isWithoutPadding - 是否去掉末尾的 = 号

返回:

The result of hashed in BASE64

hashAsBase64

public String hashAsBase64()

Get the result of hashed in BASE64

返回:

The result of hashed in BASE64

md5

public static String md5(String str)

Generates MD5 hash value for a string. It's equivalent to Spring's DigestUtils.md5DigestAsHex()

参数:

str - Input string

返回:

MD5 hash value

getSHA1

public static String getSHA1(String str)

Generates SHA1 hash value for a string.

参数:

str - Input string

返回:

SHA1 hash value

getSHA256

public static String getSHA256(String str)

Generates SHA256 hash value for a string.

参数:

str - Input string

返回:

SHA256 hash value

getHmacMD5

public static HashHelper getHmacMD5(String str,
 String key)

Generates HMAC-MD5 hash value for a string.

参数:

str - Input string

key - Key string

返回:

HMAC-MD5 hash value

getHmacSHA256

public static String getHmacSHA256(String str,
 String key,
 boolean isWithoutPadding)

Generates HMAC-SHA256 hash value for a string.

参数:

str - Input string

key - Key string

返回:

HMAC-SHA256 hash value

calcFileMD5

public static String calcFileMD5(InputStream in)

Calculate the MD5 of a file.

参数:

in - The file stream.

返回:

The MD5 result in lowercase.

calcFileMD5

public static String calcFileMD5(byte[] bytes)

Calculate the MD5 of a file.

参数:

bytes - The file bytes.

返回:

The MD5 result in lowercase.