Java获取本地IP，适用Windows和Linux

最近写了一个小功能，需要获取本地IP地址，直接用：InetAddress.getLocalHost().getHostAddress()来获取 Windows上能用，结果换到Linux环境不能使用，索性写个Windows和Linux通用的工具类 拿到所有的mac地址：NetworkInterface.getNetworkInterfaces(); 然后去遍历所有的mac地址，取IPv4的地址（排除掉回环地址） 具体代码：

public static String getLocalIp() {
          
   
            InetAddress inetAddress = null;
            boolean isFind = false; // 返回标识
            Enumeration<NetworkInterface> networkInterfaceLists = null;
            try {
          
   
                // 获取网络接口
                networkInterfaceLists = (Enumeration<NetworkInterface>) NetworkInterface.getNetworkInterfaces();
            } catch (SocketException e) {
          
   
                e.printStackTrace();
            }
            while (networkInterfaceLists.hasMoreElements()) {
          
   
                NetworkInterface networkInterface = (NetworkInterface) networkInterfaceLists.nextElement();
                Enumeration<InetAddress> ips = networkInterface.getInetAddresses();
                // 遍历所有ip，获取本地地址中不是回环地址的ipv4地址
                while (ips.hasMoreElements()) {
          
   
                    inetAddress = (InetAddress) ips.nextElement();
                    if (inetAddress instanceof Inet4Address && inetAddress.isSiteLocalAddress()
                            && !inetAddress.isLoopbackAddress()) {
          
   
                        isFind = true;
                        break;
                    }
                }
                if (isFind) {
          
   
                    break;
                }
            }
            return inetAddress == null ? "" : inetAddress.getHostAddress();
        }

OK，完成！