Sunji-posv-net/pos/POSV.Core/Utils/NetworkUtils.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.NetworkInformation;
using System.Text;

namespace POSV.Utils
{
    public static class NetworkUtils
    {
        private  static NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();

        /// <summary>
        /// 指示是否有任何可用的网络连接。
        /// </summary>
        /// <returns></returns>
        public static bool IsNetworkLink()
        {
            bool result = NetworkInterface.GetIsNetworkAvailable();
            logger.Debug("GetIsNetworkAvailable <{0}>",result);
            return result;
        }

        /// <summary>
        /// 检测电脑是否联网
        /// </summary>
        /// <returns>true表示联网</returns>
        public static bool IsConnectedToInternet()
        {
            int i = 0;
            if (WindowsAPI.InternetGetConnectedState(out i , 0))
            {
                logger.Debug("InternetGetConnectedState <{0}>" , i);

                //已联网
                return true;
            }
            else
            {
                logger.Debug("InternetGetConnectedState <{0}>" , i);

                //未联网
                return false;
            }
        }
    }
}