java測試指定IP和埠是否可以訪問

程式碼

package com.eplant.common;

/**
 * @Author: 瘋狂的蝸牛
 * @Date: 2017-09-06 11:16
 */

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

public class Test {
    public static void main(String[] args){
        Socket connect = new Socket();
        try {
            connect.connect(new InetSocketAddress("192.168.10.55", 8090),100);//建立連線
            boolean res = connect.isConnected();//通過現有方法檢視連通狀態
            System.out.println(res);//true為連通
        } catch (IOException e) {
            System.out.println("false");//當連不通時，直接拋異常，異常捕獲即可
        }finally{
            try {
                connect.close();
            } catch (IOException e) {
                System.out.println("false");
            }
        }
    }
}