java:java中的InetAddress,获取IP地址详细信息

package com.xudeyu.socket;

import java.io.IOException;

import java.io.InputStream;

import java.net.InetAddress;

import java.net.InetSocketAddress;

import java.net.Socket;

import java.net.UnknownHostException;

import java.util.Scanner;

public class SocketTest

{

public static void main(String[] args) throwsIOException

{

SocketConnTest s = new SocketConnTest();

// s.socketConn("www.baidu.com", 80);

s.getInetAddress(null);

}

}

class SocketConnTest

{

public void getInetAddress(String host) throwsUnknownHostException

{

if (host != null)

{

// 获取主机的所有的可用IP地址

InetAddress[] ips = InetAddress.getAllByName(host);

// 循环打印出地址

for (InetAddress ip : ips)

{

System.out.println(ip);

}

}

else

{

InetAddress localHost = InetAddress.getLocalHost();

System.out.println(localHost);

}

}

@SuppressWarnings("resource")

public void socketConn(String ip, int port) throwsIOException

{

// creeate a socket ,if failed .throwsUnKnowHostException;

// Socket socket = new Socket(ip, port);

// socket.setSoTimeout(1000);

Socket socketTime = new Socket();

socketTime.connect(newInetSocketAddress(InetAddress.getByName(ip),

port), 100);

try

{

// get stream form host and print it;

InputStream inStream = socketTime.getInputStream();

Scanner scan = new Scanner(inStream);

while (scan.hasNextLine())

{

String line = scan.nextLine();

System.out.println("message " + line);

}

}

catch (IOException e)

{

e.printStackTrace();

}

finally

{

socketTime.close();

}

}

}