java判断域名及端口的连通性

java实现测试域名连通性

package com.javabasic.io;

import java.net.HttpURLConnection;
import java.net.URL;


public class NetUtils {

    
    public static int testConnection(String address, int timeout) {
        int status = 404;
        try {
            URL url = new URL(address);
            HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
            httpURLConnection.setUseCaches(false);
            httpURLConnection.setConnectTimeout(timeout);
            status = httpURLConnection.getResponseCode();
            if (200 == status) {
                System.out.println("域名访问通畅！");
            }
        } catch (Exception e) {
            System.out.println(e);
        }
        return status;
    }

    public static void main(String[] args) {
        String address = "http://www.baidu.com:80";
        int timeOut = 3000;
        testConnection(address, timeOut);
    }
}