参考dubbo里的NetUtils类

import java.net.InetAddress;

import java.net.NetworkInterface;

import java.util.Enumeration;

import java.util.regex.Pattern;

public class GetIP {

public static void main(String[] args) {

System.out.println(GetIP.getLocalAddress0().getHostAddress());

}

public static InetAddress getLocalAddress0() {

InetAddress localAddress = null;

try {

localAddress = InetAddress.getLocalHost();

if (isValidAddress(localAddress)) {

return localAddress;

}

} catch (Throwable e) {

System.out.println("Failed to retriving ip address, " + e.getMessage());

}

try {

Enumeration interfaces = NetworkInterface.getNetworkInterfaces();

if (interfaces != null) {

while (interfaces.hasMoreElements()) {

try {

NetworkInterface network = interfaces.nextElement();

Enumeration addresses = network.getInetAddresses();

if (addresses != null) {

while (addresses.hasMoreElements()) {

try {

InetAddress address = addresses.nextElement();

if (isValidAddress(address)) {

return address;

}

} catch (Throwable e) {

System.out.println("Failed to retriving ip address, " + e.getMessage());

}

}

}

} catch (Throwable e) {

System.out.println("Failed to retriving ip address, " + e.getMessage());

}

}

}

} catch (Throwable e) {

System.out.println("Failed to retriving ip address, " + e.getMessage());

}

System.out.println("Could not get local host ip address, will use 127.0.0.1 instead.");

return localAddress;

}

private static boolean isValidAddress(InetAddress address) {

if (address == null || address.isLoopbackAddress())

return false;

String name = address.getHostAddress();

return (name != null

&& ! ANYHOST.equals(name)

&& ! LOCALHOST.equals(name)

&& IP_PATTERN.matcher(name).matches());

}

public static final String LOCALHOST = "127.0.0.1";

public static final String ANYHOST = "0.0.0.0";

private static final Pattern IP_PATTERN = Pattern.compile("\\d{1,3}(\\.\\d{1,3}){3,5}$");

}

posted @ 2015-03-02 06:29 leekiang 阅读(505) | 评论 (0) | 编辑 收藏