/* * Created on 2005-3-22 * * TODO To change the template for this generated file go to * Window - PReferences - Java - Code Style - Code Templates */
/** * @author whandey connect to me: whandey@163.com * * TODO To change the template for this generated type comment go to * Window - Preferences - Java - Code Style - Code Templates */ import java.io.*; import java.net.*; import java.util.*;
public class SocketPort {
public static void main(String[] args) {
String ip = "159.162.39.27"; String hostname = new String();
try{ //get the target ip address and hostname InetAddress address = InetAddress.getByName(ip); System.out.println(address); hostname = address.getHostName(); System.out.println(hostname); } catch(UnknownHostException e) { System.out.println("Could not find "+ ip);
}
try { // creat the output file PrintWriter fout = new PrintWriter( new FileWriter("PortInf.txt")); fout.println("Information Of The Port On the " + hostname +"computer "); fout.println();
Socket s = new Socket(hostname,nport); fout.println("The port " + nport + " is open!");
fout.println("Connected to "+ s.getInetAddress() + " on port " + s.getPort() + " from port "+ s.getLocalPort() + " of " + s.getLocalAddress()); //print the connected socket information }
catch(IOException e) { fout.println("The port " + nport + " is closed!"); }
