Java代码判断ip、端口是否可用的实例

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

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

public class Iputils {

    private static final Logger logger = LogManager.getLogger(WordSmsController.class);
  
    /**
     * 检测Ip和端口是否可用
     *
     * @param ip
     * @param port
     * @return
     */
    public static boolean checkIpPort(String ip, int port) {
        Socket socket = new Socket();
        try {
            socket.connect(new InetSocketAddress(ip,port),3000);
            logger.info("地址和端口号可用");
            return true;
        } catch (Exception e) {
            logger.info("地址和端口号不可用");
            return false;
        } finally {
            if (socket != null) {
                try {
                    socket.close();
                } catch (IOException e) {

                }
            }
        }

    }
    /**
     * 检测Ip地址
     *
     * @param ip
     * @return
     */
    public static boolean checkIp(String ip){
        try {
            InetAddress.getByName(ip).isReachable(3000);
            logger.info("Ip可以使用");
            return true;
        } catch (IOException e) {
            logger.info("Ip不可用");
            return false;
        }
    }

}

		// 查看端口号是否可用
        String ip = "106.12.58.180";
        int port = 80;
        Iputils iputils = new Iputils();
		// 检测Ip是否可用
        boolean resultIp = iputils.checkIp(ip);
        System.out.print("检测的Ip结果为：");
        System.out.println(resultIp);
		// 检测Ip和端口号是否可用
        boolean resultIpPort = iputils.checkIpPort(ip, port);
        System.out.print("检测的Ip和端口结果为：");
        System.out.println(resultIpPort);