Java IP Address Get getFirstLocalNonLoopbackIpAddress()

Description

get First Local Non Loopback Ip Address

License

Apache License

Declaration

public static String getFirstLocalNonLoopbackIpAddress() 

Method Source Code

//package com.java2s;
/*************************GO-LICENSE-START*********************************
 * Copyright 2014 ThoughtWorks, Inc.//from   www  . ja v  a 2s .  com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *************************GO-LICENSE-END***********************************/

import java.net.*;
import java.util.*;

public class Main {
    private static List<NetworkInterface> localInterfaces;

    public static String getFirstLocalNonLoopbackIpAddress() {
        SortedSet<String> addresses = new TreeSet<String>();
        Iterator<NetworkInterface> iterator = localInterfaces.iterator();
        while (iterator.hasNext()) {
            NetworkInterface networkInterface = iterator.next();
            Enumeration<InetAddress> inetAddressEnumeration = networkInterface.getInetAddresses();
            while (inetAddressEnumeration.hasMoreElements()) {
                InetAddress address = inetAddressEnumeration.nextElement();
                if (!address.isLoopbackAddress() && !address.getHostAddress().contains(":")) {
                    addresses.add(address.getHostAddress());
                }
            }
        }
        if (addresses.isEmpty()) {
            throw new RuntimeException("Failed to get non-loopback local ip address!");
        }
        return addresses.first();
    }
}

Related

1. getExternalIp()
2. getExternalIP(String host, String regexPattern)
3. getExternalIPAddress()
4. getExternalIPAddress()
5. getExternalIPAddress()
6. getFirstNonLoopbackAddress(boolean preferIpv4, boolean preferIPv6)
7. getFirstNonLoopBackAddress(boolean preferIpv4, boolean preferIPv6)
8. getHostIp()
9. getHostIp()