C#实现简单聊天程序的方法

本文实例讲述了c#简单聊天程序实现方法。分享给大家供大家参考。具体如下：

假如有服务器端程序,chatserver和客户端程序chatclient.实现客户端向服务器端发送信息的简单功能.

运行步骤,

1.先是服务器端start listen,
2.然后客户端connect.
3.客户端发送消息
 
只要服务器端start listen了,然后客户端也connect了.这样建立起连接后.接受发送信息就方便了,只要用writer,reader去操作networkstream
 
服务器chatserver
创建一个winform页面
引用命名空间:

using system.net.sockets;
using system.net;
using system.io;
using system.threading;
public class chatserver
{
private int port = 54321; //端口号
private ipaddress ip = ipaddress.parse("10.20.30.40"); //ip地址
private tcplistener tcplistener= null;
private tcpclient tcpclient = null;
private networkstream networkstream = null;
private binaryreader reader;
//private binarywriter writer;
private string getinfo = string.empty;
//开始监听
private void btnstartlisten_click(object sender, eventargs e)
{
   tcplistener= new tcplistener( ip , port);
   tcplistener.start(); //开始监听
   thread acceptclientmsgthread= new thread(acceptclientmsg);
   //运行一个线程去处理客户端发来的信息
   acceptclientmsgthread.start();
}
//处理客户端发来的信息
private void acceptclientmsg()
 {
  tcpclient = tcplistener.accepttcpclient();
  if( tcpclient != null)
  {
    networkstream = tcpclient.getstream();
    reader = new binaryreader( networkstream);
    while (true){
     getinfo += reader.readstring();  //读取客户端发来的信息
    }
  }
}
//假如还要显示信息的话,可以整个显示按钮(当然最好的办法是用些线程)
//然后点击button后让信息显示出来txtshowclientmsg.text = getinfo;
//如果服务器端想再给客户端发信息,就可以整个发送按钮.然后添加如下代码
//string sendmsg = txtsendmsge.text;
//writer = new binarywriter( networkstream);
//writer.write( sendmsg);
}

客户端chatclient

using system.net.sockets;
using system.net;
using system.io;
using system.threading;
public class chatclient
{
 private int port = 54321;
private ipaddress ip = ipaddress.parse("10.20.30.40");
private tcpclient tcpclient = null;
private networkstream networkstream = null;
//private binaryreader reader;
private binarywriter writer;
//连接server
private void btnstartconnect_click(object sender, eventargs e)
{
 tcpclient = new tcpclient();
 tcpclient.connect( ip, port);
 networkstream = tcpclient.getstream();
}
//发送信息
private void btnstartconnect_click(object sender, eventargs e)
{
 string sendmsg = txtsendmsg.text;
 writer = new binarywriter( networkstream);
 writer.write( sendmsg); //发送信息
}
//如果还要接受server的消息的话.
//reader = new binaryreader( networkstream);
//string getinfo = reader.readstring();
}

希望本文所述对大家的c#程序设计有所帮助。