webconnect.java

来自「java编程开发技巧与实例的编译测试通过的所有例程」· Java 代码 · 共 30 行

import java.net.*;
import java.io.*;

public class WebConnect
{
	public static void main(String args[])
	{
		try
		{
			Socket connection	=	new Socket(args[0], 80);
			System.out.println("Connection established: ");
			System.out.println("Local Connection Information: ");
			System.out.println("\t address:" + connection.getLocalAddress());
			System.out.println("\t port: " + connection.getLocalPort());
			System.out.println("Remote Connection Information: ");
			System.out.println("\t address: " + connection.getInetAddress());
			System.out.println("\t port: " + connection.getPort());
			connection.close();
		}
		catch	(UnknownHostException uhe)
		{
			System.err.println("Unknown host: " + args[0]);
		}
		catch	(IOException ioe)
		{
			System.err.println("IOException: " + ioe);
		}
	}
}