ByteUtils (mychainx-sdk-java-all 0.10.2.24.9 API)

java.lang.Object
- com.alipay.mychain.sdk.utils.ByteUtils

```
public class ByteUtils
extends Object
```
作者:

huihui.hh

字段概要

字段
限定符和类型字段和说明

static byte[] EMPTY_BYTE_ARRAY

字段
限定符和类型	字段和说明
`static byte[]`	`EMPTY_BYTE_ARRAY`

构造器概要

构造器
构造器和说明

ByteUtils()

构造器
构造器和说明
`ByteUtils()`

方法概要

所有方法静态方法具体方法
限定符和类型	方法和说明
`static byte[]`	`and(byte[] b1, byte[] b2)`
`static byte[]`	`booleanToBytes(boolean bool)`
`static BigInteger`	`byteArrayToBigInteger(byte[] b)`
`static int`	`byteArrayToInt(byte[] b)` Cast hex encoded value from byte[] to int Limited to Integer.MAX_VALUE: 2^32-1 (4 bytes)
`static long`	`byteArrayToLong(byte[] b)` Cast hex encoded value from byte[] to int Limited to Integer.MAX_VALUE: 2^32-1 (4 bytes)
`static String`	`byteArrayToString(byte[] paramBytes)` Parse parameter str
`static Integer`	`bytesToInt(byte[] byteArr)` Trans byteArr to int
`static int[]`	`bytesToInts(byte[] arr, boolean bigEndian)`
`static void`	`bytesToInts(byte[] b, int[] arr, boolean bigEndian)`
`static Short`	`bytesToShort(byte[] b)` Trans byteArr to short
`static String`	`convertPublicKeyToFixedHexString(BigInteger key)` Convert to fixed hex string string.
`static String`	`convertToFixedHexString(BigInteger key, int totalLength, int expectedLength)`
`static byte[]`	`hexStringToBytes(String data)` Converts string hex representation to data bytes Accepts following hex: - with or without 0x prefix - with no leading 0, like 0xabc -> 0x0abc
`static byte[]`	`intsToBytes(int[] arr, boolean bigEndian)`
`static void`	`intsToBytes(int[] arr, byte[] b, boolean bigEndian)`
`static byte[]`	`intToBytes(int val)` Converts int value into a byte array.
`static byte[]`	`intToBytesNoLeadZeroes(int val)` Converts a int value into a byte array.
`static boolean`	`isNullOrZeroArray(byte[] array)`
`static boolean`	`isSingleZero(byte[] array)`
`static int`	`length(byte[]... bytes)`
`static byte[]`	`longToBytes(long val)` Converts a long value into a byte array.
`static String`	`nibblesToPrettyString(byte[] nibbles)` Turn nibbles to a pretty looking output string Example. [ 1, 2, 3, 4, 5 ] becomes '\x11\x23\x45'
`static String`	`oneByteToHexString(byte value)`
`static byte[]`	`stringToByteArray(String string)`
`static String`	`toHexString(byte[] data)` Convert a byte-array into a hex String.
`static String`	`toHexString(String data)`

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
  - EMPTY_BYTE_ARRAY
```
public static final byte[] EMPTY_BYTE_ARRAY
```
- 构造器详细资料
  - ByteUtils
```
public ByteUtils()
```
- 方法详细资料
  - longToBytes
```
public static byte[] longToBytes(long val)
```
    Converts a long value into a byte array.
    
    参数:
    
    val - - long value to convert
    
    返回:
    
    byte[] of length 8, representing the long value
  - intToBytesNoLeadZeroes
```
public static byte[] intToBytesNoLeadZeroes(int val)
```
    Converts a int value into a byte array.
    
    参数:
    
    val - - int value to convert
    
    返回:
    
    value with leading byte that are zeroes striped
  - toHexString
```
public static String toHexString(String data)
```
  - toHexString
```
public static String toHexString(byte[] data)
```
    Convert a byte-array into a hex String.
    Works similar to Hex.toHexString(byte[]) but allows for null
    
    参数:
    
    data - - byte-array to convert to a hex-string
    
    返回:
    
    hex representation of the data.
    Returns an empty String if the input is null
    
    另请参阅:
    
    Hex.toHexString(byte[])
  - byteArrayToInt
```
public static int byteArrayToInt(byte[] b)
```
    Cast hex encoded value from byte[] to int
    Limited to Integer.MAX_VALUE: 2^32-1 (4 bytes)
    
    参数:
    
    b - array contains the values
    
    返回:
    
    unsigned positive int value.
  - byteArrayToLong
```
public static long byteArrayToLong(byte[] b)
```
    Cast hex encoded value from byte[] to int
    Limited to Integer.MAX_VALUE: 2^32-1 (4 bytes)
    
    参数:
    
    b - array contains the values
    
    返回:
    
    unsigned positive long value.
  - nibblesToPrettyString
```
public static String nibblesToPrettyString(byte[] nibbles)
```
    Turn nibbles to a pretty looking output string
    Example. [ 1, 2, 3, 4, 5 ] becomes '\x11\x23\x45'
    
    参数:
    
    nibbles - - getting byte of data [ 04 ] and turning it to a '\x04' representation
    
    返回:
    
    pretty string of nibbles
  - oneByteToHexString
```
public static String oneByteToHexString(byte value)
```
  - and
```
public static byte[] and(byte[] b1,
                         byte[] b2)
```
  - isNullOrZeroArray
```
public static boolean isNullOrZeroArray(byte[] array)
```
  - isSingleZero
```
public static boolean isSingleZero(byte[] array)
```
  - length
```
public static int length(byte[]... bytes)
```
  - hexStringToBytes
```
public static byte[] hexStringToBytes(String data)
```
    Converts string hex representation to data bytes Accepts following hex: - with or without 0x prefix - with no leading 0, like 0xabc -> 0x0abc
    
    参数:
    
    data - String like '0xa5e..' or just 'a5e..'
    
    返回:
    
    decoded bytes array
  - intToBytes
```
public static byte[] intToBytes(int val)
```
    Converts int value into a byte array.
    
    参数:
    
    val - - int value to convert
    
    返回:
    
    byte[] of length 4, representing the int value
  - bytesToInt
```
public static Integer bytesToInt(byte[] byteArr)
```
    Trans byteArr to int
    
    参数:
    
    byteArr -
    
    返回:
  - intsToBytes
```
public static byte[] intsToBytes(int[] arr,
                                 boolean bigEndian)
```
  - bytesToInts
```
public static int[] bytesToInts(byte[] arr,
                                boolean bigEndian)
```
  - bytesToInts
```
public static void bytesToInts(byte[] b,
                               int[] arr,
                               boolean bigEndian)
```
  - intsToBytes
```
public static void intsToBytes(int[] arr,
                               byte[] b,
                               boolean bigEndian)
```
  - bytesToShort
```
public static Short bytesToShort(byte[] b)
```
    Trans byteArr to short
    
    参数:
    
    b -
    
    返回:
  - byteArrayToString
```
public static String byteArrayToString(byte[] paramBytes)
```
    Parse parameter str
    
    参数:
    
    paramBytes - paramBytes
    
    返回:
    
    utf-8 str
  - byteArrayToBigInteger
```
public static BigInteger byteArrayToBigInteger(byte[] b)
```
  - stringToByteArray
```
public static byte[] stringToByteArray(String string)
```
  - booleanToBytes
```
public static byte[] booleanToBytes(boolean bool)
```
  - convertPublicKeyToFixedHexString
```
public static String convertPublicKeyToFixedHexString(BigInteger key)
```
    Convert to fixed hex string string.
    
    参数:
    
    key - the key
    
    返回:
    
    the string
  - convertToFixedHexString
```
public static String convertToFixedHexString(BigInteger key,
                                             int totalLength,
                                             int expectedLength)
```

类 ByteUtils

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

EMPTY_BYTE_ARRAY

构造器详细资料

ByteUtils

方法详细资料

longToBytes

intToBytesNoLeadZeroes

toHexString

toHexString

byteArrayToInt

byteArrayToLong

nibblesToPrettyString

oneByteToHexString

and

isNullOrZeroArray

isSingleZero

length

hexStringToBytes

intToBytes

bytesToInt

intsToBytes

bytesToInts

bytesToInts

intsToBytes

bytesToShort

byteArrayToString

byteArrayToBigInteger

stringToByteArray

booleanToBytes

convertPublicKeyToFixedHexString

convertToFixedHexString