ByteUtil (hutool-core 5.7.9 API)

java.lang.Object
- cn.hutool.core.util.ByteUtil

```
public class ByteUtil
extends Object
```
对数字和字节进行转换。
假设数据存储是以大端模式存储的：
- byte: 字节类型占8位二进制 00000000
- char: 字符类型占2个字节 16位二进制 byte[0] byte[1]
- int : 整数类型占4个字节 32位二进制 byte[0] byte[1] byte[2] byte[3]
- long: 长整数类型占8个字节 64位二进制 byte[0] byte[1] byte[2] byte[3] byte[4] byte[5]
- long: 长整数类型占8个字节 64位二进制 byte[0] byte[1] byte[2] byte[3] byte[4] byte[5] byte[6] byte[7]
- float: 浮点数(小数) 占4个字节 32位二进制 byte[0] byte[1] byte[2] byte[3]
- double: 双精度浮点数(小数) 占8个字节 64位二进制 byte[0] byte[1] byte[2] byte[3] byte[4]byte[5] byte[6] byte[7]
注：注释来自Hanlp，代码提供来自pr#1492@Github
从以下版本开始:

5.6.3

作者:

looly, hanlp, FULaBUla

构造器概要

构造器
构造器和说明

ByteUtil()

构造器
构造器和说明
`ByteUtil()`

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 double`	`bytesToDouble(byte[] bytes)` byte数组转Double 默认以小端序转换
`static double`	`bytesToDouble(byte[] bytes, ByteOrder byteOrder)` byte数组转double 自定义端序
`static int`	`bytesToInt(byte[] bytes)` byte[]转int值默认以小端序转换
`static int`	`bytesToInt(byte[] bytes, ByteOrder byteOrder)` byte[]转int值自定义端序
`static long`	`bytesToLong(byte[] bytes)` byte数组转long 默认以小端序转换 from: https://stackoverflow.com/questions/4485128/how-do-i-convert-long-to-byte-and-back-in-java
`static long`	`bytesToLong(byte[] bytes, ByteOrder byteOrder)` byte数组转long 自定义端序 from: https://stackoverflow.com/questions/4485128/how-do-i-convert-long-to-byte-and-back-in-java
`static short`	`bytesToShort(byte[] bytes)` byte数组转short 默认以小端序转换
`static short`	`bytesToShort(byte[] bytes, ByteOrder byteOrder)` byte数组转short 自定义端序
`static int`	`byteToUnsignedInt(byte byteValue)` byte转无符号int
`static byte[]`	`doubleToBytes(double doubleValue)` double转byte数组默认以小端序转换
`static byte[]`	`doubleToBytes(double doubleValue, ByteOrder byteOrder)` double转byte数组自定义端序 from: https://stackoverflow.com/questions/4485128/how-do-i-convert-long-to-byte-and-back-in-java
`static byte`	`intToByte(int intValue)` int转byte
`static byte[]`	`intToBytes(int intValue)` int转byte数组默认以小端序转换
`static byte[]`	`intToBytes(int intValue, ByteOrder byteOrder)` int转byte数组自定义端序
`static byte[]`	`longToBytes(long longValue)` long转byte数组默认以小端序转换 from: https://stackoverflow.com/questions/4485128/how-do-i-convert-long-to-byte-and-back-in-java
`static byte[]`	`longToBytes(long longValue, ByteOrder byteOrder)` long转byte数组自定义端序 from: https://stackoverflow.com/questions/4485128/how-do-i-convert-long-to-byte-and-back-in-java
`static byte[]`	`numberToBytes(Number number)` 将`Number`转换为
`static byte[]`	`numberToBytes(Number number, ByteOrder byteOrder)` 将`Number`转换为
`static byte[]`	`shortToBytes(short shortValue)` short转byte数组默认以小端序转换
`static byte[]`	`shortToBytes(short shortValue, ByteOrder byteOrder)` short转byte数组自定义端序

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - ByteUtil
```
public ByteUtil()
```
- 方法详细资料
  - intToByte
```
public static byte intToByte(int intValue)
```
    int转byte
    
    参数:
    
    intValue - int值
    
    返回:
    
    byte值
  - byteToUnsignedInt
```
public static int byteToUnsignedInt(byte byteValue)
```
    byte转无符号int
    
    参数:
    
    byteValue - byte值
    
    返回:
    
    无符号int值
    
    从以下版本开始:
    
    3.2.0
  - bytesToShort
```
public static short bytesToShort(byte[] bytes)
```
    byte数组转short
    默认以小端序转换
    
    参数:
    
    bytes - byte数组
    
    返回:
    
    short值
  - bytesToShort
```
public static short bytesToShort(byte[] bytes,
                                 ByteOrder byteOrder)
```
    byte数组转short
    自定义端序
    
    参数:
    
    bytes - byte数组
    
    byteOrder - 端序
    
    返回:
    
    short值
  - shortToBytes
```
public static byte[] shortToBytes(short shortValue)
```
    short转byte数组
    默认以小端序转换
    
    参数:
    
    shortValue - short值
    
    返回:
    
    byte数组
  - shortToBytes
```
public static byte[] shortToBytes(short shortValue,
                                  ByteOrder byteOrder)
```
    short转byte数组
    自定义端序
    
    参数:
    
    shortValue - short值
    
    byteOrder - 端序
    
    返回:
    
    byte数组
  - bytesToInt
```
public static int bytesToInt(byte[] bytes)
```
    byte[]转int值
    默认以小端序转换
    
    参数:
    
    bytes - byte数组
    
    返回:
    
    int值
  - bytesToInt
```
public static int bytesToInt(byte[] bytes,
                             ByteOrder byteOrder)
```
    byte[]转int值
    自定义端序
    
    参数:
    
    bytes - byte数组
    
    byteOrder - 端序
    
    返回:
    
    int值
  - intToBytes
```
public static byte[] intToBytes(int intValue)
```
    int转byte数组
    默认以小端序转换
    
    参数:
    
    intValue - int值
    
    返回:
    
    byte数组
  - intToBytes
```
public static byte[] intToBytes(int intValue,
                                ByteOrder byteOrder)
```
    int转byte数组
    自定义端序
    
    参数:
    
    intValue - int值
    
    byteOrder - 端序
    
    返回:
    
    byte数组
  - longToBytes
```
public static byte[] longToBytes(long longValue)
```
    long转byte数组
    默认以小端序转换
    from: https://stackoverflow.com/questions/4485128/how-do-i-convert-long-to-byte-and-back-in-java
    
    参数:
    
    longValue - long值
    
    返回:
    
    byte数组
  - longToBytes
```
public static byte[] longToBytes(long longValue,
                                 ByteOrder byteOrder)
```
    long转byte数组
    自定义端序
    from: https://stackoverflow.com/questions/4485128/how-do-i-convert-long-to-byte-and-back-in-java
    
    参数:
    
    longValue - long值
    
    byteOrder - 端序
    
    返回:
    
    byte数组
  - bytesToLong
```
public static long bytesToLong(byte[] bytes)
```
    byte数组转long
    默认以小端序转换
    from: https://stackoverflow.com/questions/4485128/how-do-i-convert-long-to-byte-and-back-in-java
    
    参数:
    
    bytes - byte数组
    
    返回:
    
    long值
  - bytesToLong
```
public static long bytesToLong(byte[] bytes,
                               ByteOrder byteOrder)
```
    byte数组转long
    自定义端序
    from: https://stackoverflow.com/questions/4485128/how-do-i-convert-long-to-byte-and-back-in-java
    
    参数:
    
    bytes - byte数组
    
    byteOrder - 端序
    
    返回:
    
    long值
  - doubleToBytes
```
public static byte[] doubleToBytes(double doubleValue)
```
    double转byte数组
    默认以小端序转换
    
    参数:
    
    doubleValue - double值
    
    返回:
    
    byte数组
  - doubleToBytes
```
public static byte[] doubleToBytes(double doubleValue,
                                   ByteOrder byteOrder)
```
    double转byte数组
    自定义端序
    from: https://stackoverflow.com/questions/4485128/how-do-i-convert-long-to-byte-and-back-in-java
    
    参数:
    
    doubleValue - double值
    
    byteOrder - 端序
    
    返回:
    
    byte数组
  - bytesToDouble
```
public static double bytesToDouble(byte[] bytes)
```
    byte数组转Double
    默认以小端序转换
    
    参数:
    
    bytes - byte数组
    
    返回:
    
    long值
  - bytesToDouble
```
public static double bytesToDouble(byte[] bytes,
                                   ByteOrder byteOrder)
```
    byte数组转double
    自定义端序
    
    参数:
    
    bytes - byte数组
    
    byteOrder - 端序
    
    返回:
    
    long值
  - numberToBytes
```
public static byte[] numberToBytes(Number number)
```
    将Number转换为
    
    参数:
    
    number - 数字
    
    返回:
    
    bytes
  - numberToBytes
```
public static byte[] numberToBytes(Number number,
                                   ByteOrder byteOrder)
```
    将Number转换为
    
    参数:
    
    number - 数字
    
    byteOrder - 端序
    
    返回:
    
    bytes

类 ByteUtil

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

ByteUtil

方法详细资料

intToByte

byteToUnsignedInt

bytesToShort

bytesToShort

shortToBytes

shortToBytes

bytesToInt

bytesToInt

intToBytes

intToBytes

longToBytes

longToBytes

bytesToLong

bytesToLong

doubleToBytes

doubleToBytes

bytesToDouble

bytesToDouble

numberToBytes

numberToBytes