一个扫码枪遵循TCP协议，通过改代码即可获取扫码枪所扫描的信息；（有一个串口服务器）；
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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);
}
}
}
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