Java IP Address Get getLocalIp()

Description

get Local Ip

License

Apache License

Declaration

public static String getLocalIp() 

Method Source Code

//package com.java2s;
/**/* ww w  .  ja v  a2 s. co  m*/
 * Copyright 2015-2020 jiuxian.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.
 */

import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import com.google.common.base.Throwables;

public class Main {
    public static String getLocalIp() {
        try {
            InetAddress localAddress = InetAddress.getLocalHost();
            if (localAddress != null && !localAddress.isAnyLocalAddress() && !localAddress.isLoopbackAddress()) {
                return localAddress.getHostAddress();
            }
        } catch (Exception e1) {
            throw Throwables.propagate(e1);
        }
        try {
            Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
            while (interfaces.hasMoreElements()) {
                NetworkInterface current = interfaces.nextElement();
                if (!current.isUp() || current.isLoopback() || current.isVirtual())
                    continue;
                Enumeration<InetAddress> addresses = current.getInetAddresses();
                while (addresses.hasMoreElements()) {
                    InetAddress addr = addresses.nextElement();
                    if (addr.isLoopbackAddress())
                        continue;
                    if (addr instanceof Inet4Address) {
                        return addr.getHostAddress();
                    }
                }
            }
        } catch (SocketException e) {
            throw Throwables.propagate(e);
        }
        throw new RuntimeException("Cannot get local ip.");
    }
}

Related

1. getLocalIP()
2. getLocalIp()
3. getLocalIp()
4. getLocalIP()
5. getLocalIp()
6. getLocalIP()
7. getLocalIP()
8. getLocalIP()
9. getLocalIP()