快速测试指定IP和端口是否可以访问

package a.b.c;import java.io.IOException;import java.net.InetSocketAddress;import java.net.Socket;public class TestIp {public static void main(String[] args){Socket connect = new Socket();try {connect.connect(new InetSocketAddress("192.168.2.103", 3336),100);boolean res = connect.isConnected();System.out.println("" + res);} catch (IOException e) {e.printStackTrace();}finally{try {connect.close();} catch (IOException e) {e.printStackTrace();}}}}