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java程序中如何获取MAC地址在Java中,可以通过java.net.Networklnterface类获取MAC地址以下是获取MAC地址的示例代码javaQCopycodeimportjava.net.InetAddress;importjava.net.Networkinterface;importjava.net.SocketException;importjava.net.UnknownHostException;publicclassGetMacAddress{publicstaticvoidmainString[]args{tryInetAddressipAddress=InetAddress.getLocalHost;Networkinterfacenetworkinterface=Networkinterface.getBylnetAddb;.te[]macAddressBytes=networkinterface.getHardwareAddressO;forinti=0;imacAddressBytes.length;i++{macAddressBui1der.appendStringformatc02X,macAddressByteifi!=macAddressBytes.length-1{macAddressBui1der.append-z;macAddress=macAddressBuilder.toStringO;Systemout.printlnMACAddress:+macAddress;}catchUnknownHostException|SocketExceptione{e.printStackTrace;}e.printStackTrace;该代码首先获取本地主机的IP地址,然后通过NetworkInterface.getByInetAddress方法获取网络接口,最后通过getHardwareAddress方法获取MAC地址请注意,getHardwareAddress方法返回的是一个字节数组,需要将其转换为字符串格式的MAC地址。