socket编程2-ConnectTester

package Chapter2;

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

public class ConnectTester {
    public static void main(String[] args) {
        String host = "localhost";
        int port = 8000;
        if (args.length > 1) {
            host=args[0];
            port = Integer.parseInt(args[1]);
        }
        new ConnectTester().connect(host, port);
    }

    public void connect(String host, int port) {
        //
        SocketAddress remoteAdd = new InetSocketAddress(host, port);
        Socket socket = null;
        String result = "";
        try {
            long begin = System.currentTimeMillis();
            socket = new Socket();
            socket.connect(remoteAdd, 10000);//最长连接用时为10秒
            long end = System.currentTimeMillis();
            result = (end - begin) + "ms";
        } catch (BindException e) {
            result = "Local address and port can`t be binded";
        } catch (UnknownHostException e) {
            result = "Unknown Host";
        } catch (ConnectException e) {
            result = "ConnectException";
        } catch (SocketTimeoutException e) {
            result = "TimeOut";
        } catch (IOException e) {
            result = "failure";
        } finally {
            try {
                if (socket != null)
                    socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        System.out.println("访问："+socket.getRemoteSocketAddress()+"连接用时" + result);

    }

}