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using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Net;

using System.Net.Sockets;

using System.Threading;

using System.Diagnostics;

using System.Net;

namespace Demo_Net

{

//本机为服务端

//下午加一个判断网络是否连接；以及做出相应的判断；

class Program

{

static Socket msock;

static void Main(string[] args)

{

//先判断是否ping通：

string ips = "10.18.14.111";

string str = NetConnect(ips);

Console.WriteLine(str);

Console.ReadLine();

}

//通过ping的方法判断是否连接；

private static string NetConnect(string ip)

{

Process p = new Process();

p.StartInfo.FileName = "cmd.exe";

p.StartInfo.UseShellExecute = false;

p.StartInfo.RedirectStandardError = true;

p.StartInfo.RedirectStandardInput = true;

p.StartInfo.RedirectStandardOutput = true;

p.StartInfo.CreateNoWindow = false;

string pingstr;

p.Start();

p.StandardInput.WriteLine("ping -n 1 " + ip);

p.StandardInput.WriteLine("exit");

string strRst = p.StandardOutput.ReadToEnd();

if (strRst.IndexOf("(0% 丢失)") != -1)

{

pingstr = "连接成功";

//定义socket连接 需要的本机ip以及相应的端口；

msock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

var localIP = new IPEndPoint(IPAddress.Parse("10.18.14.23"), 10001);

msock.Bind(localIP);

//自己定义最大网络连接数

msock.Listen(10);

//新建线程处理；

Thread th = new Thread(delegate()

{

Rec();

});

th.IsBackground = true;

th.Start();

}

else

{

pingstr = "连接超时";

}

p.Close();

return pingstr;

}

//监听是否有链接，新开线程处理

static void Rec()

{

do

{

Socket s = msock.Accept();

Thread th = new Thread(delegate() {

Parse(s);

});

th.IsBackground = true;

th.Start();

} while (true);

}

//有链接时处理获取的信息

static void Parse(Socket s)

{

do

{

byte[] b = new byte[1000];

int l = s.Receive(b);

b = b.Take(l).ToArray();

string rs = string.Empty;

for (int i = 0; i < b.Length; i++)

{

rs = rs + b[i].ToString();

}

//解码

Console.WriteLine(Encoding.ASCII.GetString(b, 0, l));

} while (true);

}

}

}