标签：class java ext get string int com .net name res amp
package com.achun.test;
import java.net.Inet4Address;
import java.net.Inet6Address;
import
java.net.InetAddress;
import java.net.NetworkInterface;
import
java.util.Enumeration;
public class HelloWorld {
public static void main(String[] args) {
// TODO Auto-generated method
stub
System.out.println("HelloWorld");
String ip =
getHostAddress(false,true);
System.out.println(ip);
}
private static String getHostAddress(boolean ipv6, boolean
connectTest)
{
Enumeration netInterfaces = null;
InetAddress address = null;
try {
netInterfaces =
NetworkInterface.getNetworkInterfaces();
while
(netInterfaces.hasMoreElements())
{
NetworkInterface ni =
(NetworkInterface)netInterfaces.nextElement();
if ((ni.isUp()) && (!ni.isLoopback()) &&
(!ni.isVirtual())) {
address = getInetAddress(ni, ipv6);
if (address != null)
if (connectTest) {
if
(address.isReachable(3000))
return
address.getHostAddress();
}
else return
address.getHostAddress();
}
}
}
catch
(Exception e) {
}
return "";
}
private static InetAddress getInetAddress(NetworkInterface ni, boolean
ipv6)
{
Enumeration enumeration = ni.getInetAddresses();
InetAddress address = null;
while (enumeration.hasMoreElements()) {
address = (InetAddress)enumeration.nextElement();
if ((!ipv6)
&& ((address instanceof Inet4Address)))
return address;
if ((ipv6) && ((address instanceof Inet6Address)))
return address;
}
return null;
}
public static boolean isReachable(String ip)
{
try
{
return InetAddress.getByName(ip).isReachable(3000); } catch
(Exception e) {
}
return false;
}
}
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标签：class java ext get string int com .net name res amp
原文地址：http://www.cnblogs.com/charlie-badegg/p/3700881.html
