如何将Mac地址转换为十六进制并将其传递给java中的bytearray [英] How to convert a Mac Address to a Hex and pass it to a bytearray in java

问题描述

如何将MacAddress转换为十六进制字符串，然后将其解析为java中的一个字节？
和类似的IP地址？

谢谢

解决方案

MAC地址已经是十六进制格式，它是6对2个十六进制数字的形式。

  String macAddress =AA：BB：CC：DD：EE：FF; 
 String [] macAddressParts = macAddress.split（：）; 
 
 //将十六进制字符串转换为字节值
 Byte [] macAddressBytes = new Byte [6]; 
 for（int i = 0; i <6; i ++）{
 Integer hex = Integer.parseInt（macAddressParts [i]，16）; 
 macAddressBytes [i] = hex.byteValue（）; 
} 
  

还有......

 字符串ipAddress =192.168.1.1; 
 String [] ipAddressParts = ipAddress.split（\\\。）; 
 
 //将int字符串转换为字节值
 Byte [] ipAddressBytes = new Byte [4]; 
 for（int i = 0; i <4; i ++）{
 Integer integer = Integer.parseInt（ipAddressParts [i]）; 
 ipAddressBytes [i] = integer.byteValue（）; 
} 
  

How can i convert a MacAddress to a Hex String and then parse it to a byte in java? and similarly an IP Address as well?

Thank you

解决方案

A MAC address is already in hexadecimal format, it is of the form of 6 pairs of 2 hexadecimal digits.

String macAddress = "AA:BB:CC:DD:EE:FF";
String[] macAddressParts = macAddress.split(":");

// convert hex string to byte values
Byte[] macAddressBytes = new Byte[6];
for(int i=0; i<6; i++){
    Integer hex = Integer.parseInt(macAddressParts[i], 16);
    macAddressBytes[i] = hex.byteValue();
}

And...

String ipAddress = "192.168.1.1";
String[] ipAddressParts = ipAddress.split("\\.");

// convert int string to byte values
Byte[] ipAddressBytes = new Byte[4];
for(int i=0; i<4; i++){
    Integer integer = Integer.parseInt(ipAddressParts[i]);
    ipAddressBytes[i] = integer.byteValue();
}

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