C# Ping 的使用

///<summary>
/// 类说明：HttpHelps类，用来实现Http访问，Post或者Get方式的，直接访问，带Cookie的，带证书的等方式
/// 编码日期：2011-11-17
/// 编 码 人：  苏飞
/// 联系方式：361983679  Email：sufei.1013@163.com  Blogs:http://sufei.cnblogs.com
///</summary>

using System;
using System.Collections.Generic;
using System.Web;
using System.Text.RegularExpressions;
using System.Diagnostics;

namespace GetPing
{
    public class PingServices
    {
        #region codes

        //超时时间
        private const int TIME_OUT = 100;
        //包大小
        private const int PACKET_SIZE = 32;
        //Ping的次数
        private const int TRY_TIMES = 1;

        //取时间的正则
        private static Regex _reg = new Regex(@"时间=(.*?)ms", RegexOptions.Multiline | RegexOptions.IgnoreCase);
        Process proc_Ping = new Process();

        ///<summary>
        /// 得到速度值单位KB
        ///</summary>
        ///<param name="strCommandline">传入的命令行</param>
        ///<param name="packetSize">包的大小</param>
        ///<returns>KB</returns>
        private float LaunchPing(string strCommandline, int packetSize)
        {
            SetProcess(strCommandline);
            proc_Ping.Start();
            string strBuffer = proc_Ping.StandardOutput.ReadToEnd();
            proc_Ping.Close();
            return ParseResult(strBuffer, packetSize);
        }

        ///<summary>
        /// 设属性
        ///</summary>
        ///<param name="strCommandline">传入的命令行</param>
        private void SetProcess(string strCommandline)
        {
            //命令行
            proc_Ping.StartInfo.Arguments = strCommandline;
            //是否使用操作系统外壳来执行
            proc_Ping.StartInfo.UseShellExecute = false;
            //是否在新窗口中启动
            proc_Ping.StartInfo.CreateNoWindow = true;
            //exe名称默认的在System32下
            proc_Ping.StartInfo.FileName = "ping.exe";
            proc_Ping.StartInfo.RedirectStandardInput = true;
            proc_Ping.StartInfo.RedirectStandardOutput = true;
            proc_Ping.StartInfo.RedirectStandardError = true;
        }

        ///<summary>
        /// 得到Ping的结果包括统计信息
        ///</summary>
        ///<param name="strCommandline">传入的命令行</param>
        ///<param name="packetSize">包的大小</param>
        ///<returns>KB</returns>
        private string LaunchPingStr(string strCommandline, int packetSize)
        {
            SetProcess(strCommandline);
            proc_Ping.Start();
            string strBuffer = proc_Ping.StandardOutput.ReadToEnd();
            proc_Ping.Close();
            return strBuffer;
        }

        ///<summary>
        /// 取速度值
        ///</summary>
        ///<param name="strBuffer"></param>
        ///<param name="packetSize"></param>
        ///<returns></returns>
        private float ParseResult(string strBuffer, int packetSize)
        {
            if (strBuffer.Length < 1) return 0.0F;

            MatchCollection mc = _reg.Matches(strBuffer);
            if (mc == null || mc.Count < 1 || mc[0].Groups == null) return 0.0F;
            int avg;
            if (!int.TryParse(mc[0].Groups[1].Value, out avg)) return 0.0F;
            if (avg <= 0) return 1024.0F;

            return (float)packetSize / avg * 1000 / 1024;
        }

        #endregion 公共方法

        ///<summary>
        /// 得到网速
        ///</summary>
        ///<param name="strHost">主机名或ip</param>
        ///<returns>kbps/s</returns>
        public float PingKB(string strHost)
        {
            return LaunchPing(string.Format("{0} -n {1} -l {2} -w {3}", strHost, TRY_TIMES, PACKET_SIZE, TIME_OUT), PACKET_SIZE);
        }

        ///<summary>
        /// 得到Ping结果字符串
        ///</summary>
        ///<param name="strHost">主机名或ip</param>
        ///<param name="PacketSize">发送测试包大小</param>
        ///<param name="TimeOut">超时</param>
        ///<param name="TryTimes">测试次数</param>
        ///<returns>kbps/s</returns>
        public string GetPingStr(string strHost, int PacketSize, int TimeOut, int TryTimes)
        {
            return LaunchPingStr(string.Format("{0} -n {1} -l {2} -w {3}", strHost, TryTimes, PacketSize, TimeOut), PacketSize);
        }

        ///<summary>
        /// 根据传入的参数返回Ping速度结果
        ///</summary>
        ///<param name="strHost">主机名或ip</param>
        ///<param name="PacketSize">发送测试包大小</param>
        ///<param name="TimeOut">超时</param>
        ///<param name="TryTimes">测试次数</param>
        ///<returns>kbps/s</returns>
        public float PingKB(string strHost, int PacketSize, int TimeOut, int TryTimes)
        {
            return LaunchPing(string.Format("{0} -n {1} -l {2} -w {3}", strHost, TryTimes, PacketSize, TimeOut), PacketSize);

        }

    }

}