Admin: 1 версия

2010-06-01T07:21:02Z

1 версия

в 18:01, 31 мая 2010

2010-05-31T18:01:47Z

Новая страница

== An updated version of the ListNets program that uses the NetworkInterface enhancements ==



<source lang="java">

import java.io.Console;
import java.net.InetAddress;
import java.net.InterfaceAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Arrays;
import java.util.Collections;
import java.util.Enumeration;
import java.util.List;
public class Main {
public static void main(String args[]) throws SocketException {
Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
for (NetworkInterface netint : Collections.list(nets)) {
displayInterfaceInformation(netint);
}
}
private static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {
System.out.printf("Display name: %s%n", netint.getDisplayName());
System.out.printf("Name: %s%n", netint.getName());
Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
for (InetAddress inetAddress : Collections.list(inetAddresses)) {
System.out.printf("InetAddress: %s%n", inetAddress);
}
System.out.printf("Parent: %s%n", netint.getParent());
System.out.printf("Up? %s%n", netint.isUp());
System.out.printf("Loopback? %s%n", netint.isLoopback());
System.out.printf("PointToPoint? %s%n", netint.isPointToPoint());
System.out.printf("Supports multicast? %s%n", netint.isVirtual());
System.out.printf("Virtual? %s%n", netint.isVirtual());
System.out.printf("Hardware address: %s%n", Arrays.toString(netint.getHardwareAddress()));
System.out.printf("MTU: %s%n", netint.getMTU());
List<InterfaceAddress> interfaceAddresses = netint.getInterfaceAddresses();
for (InterfaceAddress addr : interfaceAddresses) {
System.out.printf("InterfaceAddress: %s%n", addr.getAddress());
}
System.out.printf("%n");
Enumeration<NetworkInterface> subInterfaces = netint.getSubInterfaces();
for (NetworkInterface networkInterface : Collections.list(subInterfaces)) {
System.out.printf("%nSubInterface%n");
displayInterfaceInformation(networkInterface);
}
System.out.printf("%n");
}
}

</source>



== Extract network card address with java.net.NetworkInterface ==



<source lang="java">

import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Arrays;
import java.util.Enumeration;
public class Main {
public static void main(String args[]) throws SocketException {
Enumeration<NetworkInterface> nets = NetworkInterface
.getNetworkInterfaces();
while (nets.hasMoreElements()) {
NetworkInterface netint = nets.nextElement();
System.out.println("Display name: " + netint.getDisplayName());
System.out.println("Hardware address: "
+ Arrays.toString(netint.getHardwareAddress()));
}
}
}

</source>



== Get MAC address of a host: java.net.NetworkInterface.getHardwareAddress(). ==



<source lang="java">

import java.net.InetAddress;
import java.net.NetworkInterface;
public class Main {
public static void main(String[] args) throws Exception {
InetAddress address = InetAddress.getLocalHost();
NetworkInterface ni = NetworkInterface.getByInetAddress(address);
byte[] mac = ni.getHardwareAddress();
for (int i = 0; i < mac.length; i++) {
System.out.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : "");
}
}
}

</source>



== List Network Interfaces ==



<source lang="java">

import java.net.NetworkInterface;
import java.util.Enumeration;
public class Main {
static public void main(String args[]) throws Exception {
Enumeration interfaces = NetworkInterface.getNetworkInterfaces();
while (interfaces.hasMoreElements()) {
NetworkInterface ni = (NetworkInterface) interfaces.nextElement();
System.out.println(ni);
}
}
}

</source>



== Programmatic Access to Network Parameters ==



<source lang="java">

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Collections;
import java.util.Enumeration;
public class Main {
public static void main(String args[]) throws SocketException {
Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
for (NetworkInterface netint : Collections.list(nets)) {
displayInterfaceInformation(netint);
}
}
private static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {
System.out.printf("Display name: %s%n", netint.getDisplayName());
System.out.printf("Name: %s%n", netint.getName());
Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
for (InetAddress inetAddress : Collections.list(inetAddresses)) {
System.out.printf("InetAddress: %s%n", inetAddress);
}
System.out.printf("%n");
}
}

</source>



== Report By Name ==



<source lang="java">

import java.net.NetworkInterface;
public class Main {
static public void main(String args[]) throws Exception {
NetworkInterface ni = NetworkInterface.getByName(args[0]);
System.out.println(ni);
}
}

</source>

← Предыдущая	Версия 07:21, 1 июня 2010
(нет различий)

Java/Network Protocol/NetworkInterface - История изменений

Admin: 1 версия

в 18:01, 31 мая 2010