Java获取本地IP地址(Linux)

 

 

package com.cfcc.cfcs.common.utils;

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.Enumeration;

public class IPUtils {
    /**
     * 获取本地IP地址
     *
     * @throws Exception
     */
    public static String getLocalIP() throws Exception {
        if (isWindowsOS()) {
            return InetAddress.getLocalHost().getHostAddress();
        } else {
            return getLinuxLocalIp();
        }
    }

    /**
     * 获取Linux下的IP地址
     *
     * @return IP地址
     * @throws Exception
     */
    private static String getLinuxLocalIp() throws Exception {
        String ip = "";
        try {
            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) {
                NetworkInterface intf = en.nextElement();
                String name = intf.getName();
                if (!name.contains("docker") && !name.contains("lo")) {
                    for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements(); ) {
                        InetAddress inetAddress = enumIpAddr.nextElement();
                        if (!inetAddress.isLoopbackAddress()) {
                            String ipaddress = inetAddress.getHostAddress().toString();
                            if (!ipaddress.contains("::") && !ipaddress.contains("0:0:") && !ipaddress.contains("fe80")) {
                                ip = ipaddress;
//                                System.out.println(ipaddress);
                            }
                        }
                    }
                }
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return ip;
    }

    /**
     * 判断操作系统是否是Windows
     *
     * @return
     */
    public static boolean isWindowsOS() {
        boolean isWindowsOS = false;
        String osName = System.getProperty("os.name");
        if (osName.toLowerCase().indexOf("windows") > -1) {
            isWindowsOS = true;
        }
        return isWindowsOS;
    }

    public static void main(String[] args) throws Exception {
        System.out.println(getLocalIP());
    }
}

 

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