以前，為了獲取MAC地址，我們需要使用本機代碼作為解決方案。在JDK 1.6中，java.net.NetworkInterface類中添加了一個新方法，該方法為getHardwareAddress()。package?org.nhooo.example.network;

import?java.net.InetAddress;

import?java.net.NetworkInterface;

import?java.net.SocketException;

import?java.net.UnknownHostException;

public?class?MacAddress?{

public?static?void?main(String[]?args)?{

try?{

// InetAddress地址= InetAddress.getLocalHost();

InetAddress?address?=?InetAddress.getByName("192.168.42.26");

/*

*?Get?NetworkInterface?for?the?current?host?and?then?read

*?the?hardware?address.

*/

NetworkInterface?ni?=??NetworkInterface.getByInetAddress(address);

if?(ni?!=?null)?{

byte[]?mac?=?ni.getHardwareAddress();

if?(mac?!=?null)?{

/*

*?Extract?each?array?of?mac?address?and?convert?it

*?to?hexadecimal?with?the?following?format

*?08-00-27-DC-4A-9E.

*/

for?(int?i?=?0;?i?

System.out.format("%02X%s",

mac[i],?(i?

}

}?else?{

System.out.println("Address?doesn't?exist?or?is?not?"?+

"accessible.");

}

}?else?{

System.out.println("Network?Interface?for?the?specified?"?+

"address?is?not?found.");

}

}?catch?(UnknownHostException?|?SocketException?e)?{

e.printStackTrace();

}

}

}

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