扫描端口

package com.huaming;

import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.UnknownHostException;

public class TestScanner {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new TestScanner().launcher();
	}

	public void launcher() {
		for (int i = 1; i < 65536; i++) {
			try {
				Socket socket = new Socket();
				socket.connect(new InetSocketAddress(InetAddress.getByName("xxx.xxx.xxx.xxx"), i), 20);
				//System.out.println();
				System.out.println(i);
				socket.close();
			} catch (UnknownHostException e) {
				//System.out.print("u");
			} catch (IOException e) {
				//System.out.print("i");
			}

		}
	}

}