package doumeemes.core.utils;
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import lombok.extern.slf4j.Slf4j;
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import java.net.InetAddress;
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import java.net.NetworkInterface;
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import java.net.SocketException;
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import java.util.Enumeration;
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/**
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* 服务端工具类
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* @author Eva.Caesar Liu
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* @date 2022/04/18 18:12
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*/
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@Slf4j
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public class Server {
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/**
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* 获取IP地址
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*/
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public String getIP() {
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String ip = "获取失败";
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InetAddress inetAddress = getInetAddress();
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if (inetAddress != null) {
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ip = inetAddress.getHostAddress();
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}
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return ip;
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}
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/**
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* 获取MAC地址
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*/
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public String getMAC() {
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try {
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InetAddress inetAddress = getInetAddress();
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if (inetAddress == null) {
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return "获取失败";
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}
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byte[] bs = NetworkInterface.getByInetAddress(inetAddress).getHardwareAddress();
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StringBuffer sb = new StringBuffer();
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for (int i = 0; i < bs.length; i++) {
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if (i != 0) {
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sb.append(":");
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}
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// 字节转换为整数
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int temp = bs[i] & 0xff;
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// 把无符号整数参数所表示的值转换成以十六进制表示的字符串
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String str = Integer.toHexString(temp);
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if (str.length() == 1) {
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sb.append("0" + str);
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} else {
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sb.append(str);
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}
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}
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return sb.toString();
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} catch (Exception e) {
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return "获取失败";
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}
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}
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/**
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* 获取InetAddress对象
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*/
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private InetAddress getInetAddress () {
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InetAddress inetAddress = null;
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try {
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for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) {
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NetworkInterface intf = en.nextElement();
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String name = intf.getName();
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if (name.contains("docker") || name.contains("lo")) {
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return inetAddress;
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}
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for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements(); ) {
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InetAddress ia = enumIpAddr.nextElement();
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if (ia.isLoopbackAddress()) {
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continue;
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}
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String address = ia.getHostAddress();
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if (address.contains("::") || address.contains("0:0:") || address.contains("fe80")) {
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continue;
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}
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if (!"127.0.0.1".equals(address)) {
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inetAddress = ia;
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}
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}
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}
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} catch (SocketException e) {
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log.error(e.getMessage(), e);
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}
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return inetAddress;
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}
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}
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