[网络协议]Android 获取IP与mac地址

没什么好说的，直接上java代码

import java.net.NetworkInterface;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.net.InetAddress;
import java.util.Enumeration;

public static String getNetworkInfo() {
    try {
        List<NetworkInterface> infos = Collections.list(NetworkInterface.getNetworkInterfaces());

        for (NetworkInterface info: infos) {
            if (!info.getName().equals("wlan0")) {
                continue;
            }

            String ipAddr = "0.0.0.0";
            Enumeration<InetAddress> addrs = info.getInetAddresses();
            while (addrs.hasMoreElements()){
                InetAddress addr = addrs.nextElement();
                // 过滤ipv6
                if(addr.toString().length() <= 16){
                    ipAddr = addr.toString().subSequence(1, addr.toString().length()).toString();
                }
            }

            byte[] macBytes = info.getHardwareAddress();
            List<String> macByteList = new ArrayList<>();
            for (Byte byt: macBytes) {
                macByteList.add(String.format("%02X", byt));
            }
            String macAddr = String.join(":", macByteList);
            return macAddr + "&" + ipAddr;
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return "00:00:00:00:00:00&0.0.0.0";
}