C#使用TcpListener及TcpClient开发一个简单的Chat工具实例

本文使用的开发环境是vs2017及dotnet4.0，写此随笔的目的是给自己及新开发人员作为参考，

本例子比较简单，使用的是控制台程序开发，若需要使用该软件作为演示，必须先运行服务端，再运行客户端。

因为是首次接触该方面的知识，写得比较简陋，如有更好的建议，请提出，谢谢！

一、编写服务器端代码，如下：

using system;
using system.text;
using system.net;
using system.net.sockets;
using system.threading.tasks;
namespace chatserver
{
 class program
 {
  static void main(string[] args)
  {
   bool cancel = false;
   byte[] buffer = new byte[1024];
   string message;
   byte[] messagebytes;
   int count = 0;
   tcplistener tcplistener = new tcplistener(new ipendpoint(ipaddress.any, 13000));
   tcplistener.start();
   console.writeline("waiting for a connection... ");
   tcpclient tcpclient = tcplistener.accepttcpclient();
   console.writeline("connected.");
   networkstream stream = tcpclient.getstream();
   
   task.factory.startnew(() => 
   {
    while ((count = stream.read(buffer, 0, buffer.length)) != 0)
    {
     console.writeline($"{datetime.now:yyyy-mm-dd hh:mm:ss fff} reply from server {tcpclient.client.localendpoint.tostring()}:{encoding.utf8.getstring(buffer, 0, count)}");
    }
   });
     
   task t = task.factory.startnew(() => 
   {
    while(!cancel)
    {
     message = console.readline();
     if (message.toupper() == "y")
     {
      cancel = true;
      return;
     }
     messagebytes = encoding.utf8.getbytes(message);
     stream.write(messagebytes, 0, messagebytes.length);
    }
   });
      
   if (cancel) tcpclient.close();
    
   while (true)
   {
    if (t != null && t.iscompleted) break;
   }
  }
 }
}

二、编写客户端代码，如下：

using system;
using system.linq;
using system.text;
using system.net;
using system.net.sockets;
using system.threading;
using system.threading.tasks;
namespace chatclient
{
 class program
 {
  static void main(string[] args)
  {
   bool cancel = false;
   byte[] buffer = new byte[1024];
   string message;
   byte[] messagebytes;
   int count = 0;
   try
   {
    tcpclient tcpclient = new tcpclient(new ipendpoint(dns.gethostentry(dns.gethostname()).addresslist.where(p => p.addressfamily == addressfamily.internetwork).first(), 14000));
    tcpclient.connect(new ipendpoint(ipaddress.parse("192.168.94.26"), 13000));
    networkstream stream = tcpclient.getstream();
    
    task.factory.startnew(() =>
    {
     while ((count = stream.read(buffer, 0, buffer.length)) != 0)
     {
      console.writeline($"{datetime.now:yyyy-mm-dd hh:mm:ss fff} reply from client {tcpclient.client.localendpoint.tostring()}:{encoding.utf8.getstring(buffer, 0, count)}");
     }
    });
    task t = task.factory.startnew(() =>
    {
     while (!cancel)
     {
      message = console.readline();
      if (message.toupper() == "y")
      {
       cancel = true;
       return;
      }
      messagebytes = encoding.utf8.getbytes(message);
      stream.write(messagebytes, 0, messagebytes.length);
      thread.sleep(10);
     }
    });
    if (cancel) tcpclient.close();
    
    while (true)
    {
     if (t != null && t.iscompleted) break;
    }
   }
   catch(exception ex)
   {
    console.writeline(ex.message);
    console.readkey();
   }
   } 
 }
}

三、先运行服务端代码，后再另外一台电脑运行客户端代码，效果图如下：

以上这篇c#使用tcplistener及tcpclient开发一个简单的chat工具实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。