(byte)(0xff (hostAddress 16))，(byte)(0xff (hostAddress 24)) };try {return InetAddress.getByAddress(addressBytes);} catch (UnknownHostException e) {throw new AssertionError();}} ，public class MainActivity extends Activity {private WifiManager my_wifiManager;private WifiInfo wifiInfo;private DhcpInfo dhcpInfo;private TextView tvResult;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);my_wifiManager = ((WifiManager) getSystemService(wifi));dhcpInfo = my_wifiManager.getDhcpInfo();wifiInfo = my_wifiManager.getConnectionInfo();tvResult = (TextView) findViewById(R.id.tvResult);}@Overrideprotected void onResume() {super.onResume();StringBuilder sb = new StringBuilder();sb.append(网络信息：);sb.append(\nipAddress： + intToIp(dhcpInfo.ipAddress));sb.append(\nnetmask： + intToIp(dhcpInfo.netmask));sb.append(\ngateway： + intToIp(dhcpInfo.gateway));sb.append(\nserverAddress： + intToIp(dhcpInfo.serverAddress));sb.append(\ndns1： + intToIp(dhcpInfo.dns1));sb.append(\ndns2： + intToIp(dhcpInfo.dns2));sb.append(\n);System.out.println(intToIp(dhcpInfo.ipAddress));System.out.println(intToIp(dhcpInfo.netmask));System.out.println(intToIp(dhcpInfo.gateway));System.out.println(intToIp(dhcpInfo.serverAddress));System.out.println(intToIp(dhcpInfo.dns1));System.out.println(intToIp(dhcpInfo.dns2));System.out.println(dhcpInfo.leaseDuration);sb.append(Wifi信息：);sb.append(\nIpAddress： + intToIp(wifiInfo.getIpAddress()));sb.append(\nMacAddress： + wifiInfo.getMacAddress());tvResult.setText(sb.toString());}private String intToIp(int paramInt) {return (paramInt 0xFF) + . + (0xFF paramInt 8) + . + (0xFF paramInt 16) + .+ (0xFF paramInt 24);}} 效果如下： 备注： android.net.NetworkUtils /*** Convert a IPv4 address from an integer to an InetAddress.* @param hostAddress an int corresponding to the IPv4 address in network byte order*/public static InetAddress intToInetAddress(int hostAddress) {byte[] addressBytes = { (byte)(0xff hostAddress)，(byte)(0xff (hostAddress 8))，。