136 lines
4.3 KiB
C#
136 lines
4.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net.NetworkInformation;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace Ultron.Ngrok.Utils
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{
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public class NetworkUtils
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{
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public static string url = "www.baidu.com;www.sina.com;www.163.com;ngrok.aaqbee.com";
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public static string[] urls = url.Split(new char[] { ';' });
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public static FormMain fm = null;
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public static void RwiteLog(string message)
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{
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StringBuilder sb = new StringBuilder(NetworkUtils.fm.cmdLogTextArea.Text);
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NetworkUtils.fm.cmdLogTextArea.Text = sb.AppendLine(message).ToString();
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NetworkUtils.fm.cmdLogTextArea.SelectionStart = fm.cmdLogTextArea.Text.Length;
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NetworkUtils.fm.cmdLogTextArea.ScrollToCaret();
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}
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/// <summary>
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/// 检测网络连接状态
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/// </summary>
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/// <param name="urls"></param>
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public static void CheckServeStatus(FormMain form)
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{
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Control.CheckForIllegalCrossThreadCalls = false;
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NetworkUtils.fm = form;
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int errCount = 0;//ping时连接失败个数
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NetworkUtils.RwiteLog("开始检测网络...");
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string checkMsg = string.Empty;
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if (!LocalConnectionStatus())
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{
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checkMsg = "网络异常--无连接";
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}
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else if (!MyPing(urls, out errCount))
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{
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if ((double)errCount / urls.Length >= 0.3)
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{
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checkMsg = "网络异常--连接多次无响应";
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}
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else
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{
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checkMsg = "网络不稳定";
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}
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}
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else
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{
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checkMsg = "网络正常";
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}
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NetworkUtils.RwiteLog(checkMsg);
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NetworkUtils.RwiteLog("网络检测结束...");
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}
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private const int INTERNET_CONNECTION_MODEM = 1;
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private const int INTERNET_CONNECTION_LAN = 2;
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[System.Runtime.InteropServices.DllImport("winInet.dll")]
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private static extern bool InternetGetConnectedState(ref int dwFlag, int dwReserved);
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/// <summary>
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/// 判断本地的连接状态
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/// </summary>
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/// <returns></returns>
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private static bool LocalConnectionStatus()
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{
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System.Int32 dwFlag = new Int32();
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if (!InternetGetConnectedState(ref dwFlag, 0))
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{
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NetworkUtils.RwiteLog("本地连接状态--未连网!");
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return false;
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}
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else
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{
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if ((dwFlag & INTERNET_CONNECTION_MODEM) != 0)
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{
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//NetworkUtils.RwiteLog("本地连接状态--采用调制解调器上网。");
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return true;
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}
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else if ((dwFlag & INTERNET_CONNECTION_LAN) != 0)
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{
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//NetworkUtils.RwiteLog("本地连接状态--采用网卡上网。");
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return true;
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}
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}
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return false;
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}
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/// <summary>
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/// Ping命令检测网络是否畅通
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/// </summary>
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/// <param name="urls">URL数据</param>
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/// <param name="errorCount">ping时连接失败个数</param>
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/// <returns></returns>
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public static bool MyPing(string[] urls, out int errorCount)
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{
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bool isconn = true;
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Ping ping = new Ping();
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errorCount = 0;
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try
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{
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PingReply pr;
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for (int i = 0; i < urls.Length; i++)
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{
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pr = ping.Send(urls[i]);
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if (pr.Status != IPStatus.Success)
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{
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isconn = false;
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errorCount++;
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}
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//NetworkUtils.RwiteLog("Ping " + urls[i] + " " + pr.Status.ToString());
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}
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}
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catch
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{
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isconn = false;
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errorCount = urls.Length;
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}
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//if (errorCount > 0 && errorCount < 3)
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// isconn = true;
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return isconn;
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}
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}
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}
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