进来看看源码

qxl12343 2003-07-19 03:51:09

在网上找了个聊天室的例子，这是服务端，不知道这个 SendToClient 是怎么回来，请高手指点

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Threading;
using System.Net.Sockets;
using System.Net;
namespace ChatServer
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private ArrayList clients = new ArrayList();
private Socket clientsocket;
private Thread clientservice;
private System.Windows.Forms.ListBox lbClients;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;

public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();

//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}

/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.lbClients = new System.Windows.Forms.ListBox();
this.SuspendLayout();
//
// lbClients
//
this.lbClients.ItemHeight = 12;
this.lbClients.Name = "lbClients";
this.lbClients.Size = new System.Drawing.Size(280, 352);
this.lbClients.TabIndex = 0;
this.lbClients.SelectedIndexChanged += new System.EventHandler(this.listBox1_SelectedIndexChanged);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(392, 358);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.lbClients});
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);

}
#endregion

/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}

private void listBox1_SelectedIndexChanged(object sender, System.EventArgs e)
{

}
private void StartListening()
{
int listenport = 8888;
TcpListener listener = new TcpListener(listenport);
listener.Start();
while (true)
{
try
{
Socket s = listener.AcceptSocket();
clientsocket = s;
clientservice = new Thread(new ThreadStart(ServiceClient));
clientservice.Start();
}
catch(Exception e)
{
Console.WriteLine(e.ToString() );
}
}
}

private void ServiceClient()
{
Socket client = clientsocket;
bool keepalive = true;
while (keepalive)
{
Byte[] buffer = new Byte[1024];
client.Receive(buffer);
string clientcommand = System.Text.Encoding.ASCII.GetString(buffer);
string[] tokens = clientcommand.Split(new Char[]{'|'});
Console.WriteLine(clientcommand);
if (tokens[0] == "CONN")
{
int c1 = clients.Count;
for(int n=0; n <c1 ;n++) //n ??
{
Client cl = (Client)clients[n];
SendToClient(cl, "JOIN|" + tokens[1]);
}
EndPoint ep = client.RemoteEndPoint;
Client c = new Client(tokens[1], ep, clientservice, client);
clients.Add(c);
string message = "LIST|" + GetChatterList() +"\r\n";
SendToClient(c, message);
lbClients.Items.Add(c);
}
if (tokens[0] == "CHAT")
{
int c = clients.Count;
for(int n=0; n < c; n++) //n??
{
Client cl = (Client)clients[n];
SendToClient(cl, clientcommand);
}
}
if (tokens[0] == "PRIV")
{
int c = clients.Count;
string destclient = tokens[3];
for(int n=0; n <c; n++) //n?????????????/
{
Client cl = (Client)clients[n];
if(cl.Name.CompareTo(tokens[3]) == 0)
SendToClient(cl, clientcommand);
if(cl.Name.CompareTo(tokens[1]) == 0)
SendToClient(cl, clientcommand);
}
}
if (tokens[0] == "GONE")
{
int remove = 0;
bool found = false;
int c = clients.Count;
for(int n=0; n <c ;n++)
{
Client cl = (Client)clients[n];
SendToClient(cl, clientcommand);
if(cl.Name.CompareTo(tokens[1]) == 0)
{
remove = n;
found = true;
lbClients.Items.Remove(cl);
}
}
if(found)
clients.RemoveAt(remove);
client.Close();
keepalive = false;
}
}
}
}
public class Client
{
private Thread clthread;
private EndPoint endpoint;
private string name;
private Socket sock;
public Client(string _name, EndPoint _endpoint, Thread _thread, Socket _sock)
{
// TODO: 在此处添加构造函数逻辑
clthread = _thread;
endpoint = _endpoint;
name = _name;
sock = _sock;
}
public override string ToString()
{
return endpoint.ToString()+ " : " + name;
}
public Thread CLThread
{
get{return clthread;}
set{clthread = value;}
}
public EndPoint Host
{
get{return endpoint;}
set{endpoint = value;}
}
public string Name
{
get{return name;}
set{name = value;}
}
public Socket Sock
{
get{return sock;}
set{sock = value;}
}
}

}

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