相容WNDINS和linux的查IP__linux

package com.jd.bdp.phenix.commons.utils;

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

/**
 * Created by gaochenghao on 15-1-13.
 */
public class IPFinder {
    /**
     * 擷取本機ip地址，並自動區分Windows還是linux作業系統
     * @return String
     */
    public static String getIP() throws Exception {
        List<String> ipList = new ArrayList<String>();
        InetAddress ip;
        //如果是Windows作業系統
        if (isWindowsOS()) {
            ip = InetAddress.getLocalHost();
            return ip.getHostAddress();
        } else {//如果是Linux作業系統
            Enumeration<NetworkInterface> netInterfaces = NetworkInterface.getNetworkInterfaces();
            while (netInterfaces.hasMoreElements()) {
                NetworkInterface ni = netInterfaces.nextElement();
                //----------特定情況，可以考慮用ni.getName判斷
                //遍曆所有ip
                Enumeration<InetAddress> ips = ni.getInetAddresses();
                while (ips.hasMoreElements()) {
                    ip = ips.nextElement();
                    System.out.println("isSiteLocalAddress:" + ip.isSiteLocalAddress() +
                            " isLoopbackAddress:" + ip.isLoopbackAddress() +
                            " HostAddress:" + ip.getHostAddress()
                    );
                    if (ip.isSiteLocalAddress()
                            && !ip.isLoopbackAddress()   //127.開頭的都是lookback地址
                            && ip.getHostAddress().indexOf(":") == -1) {
                        ipList.add(ip.getHostAddress());
                    }
                }

            }
        }
        System.out.println(".............your computer ip list is :" + ipList);
        if (ipList.size() == 0) {
            throw new Exception("Can't find this computer IP address Exception.");
        }
        Collections.sort(ipList);
        return ipList.get(0);
    }

    public static void main(String[] args) {
        try {
            System.out.println("get ip is:" + getIP());
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
    /**
     * 獲得主機IP
     * @return String
     */
    public static boolean isWindowsOS() {
        boolean isWindowsOS = false;
        String osName = System.getProperty("os.name");
        System.out.println("........your os Name is :" + osName);
        if (osName.toLowerCase().indexOf("windows") > -1) {
            isWindowsOS = true;
        }
        return isWindowsOS;
    }
}