彥霖 實驗筆記

using System;
using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace ServerSocket
{
class ServerSocket
{
public static ManualResetEvent thread = new System.Threading.ManualResetEvent(false);

/// 應用程式的主進入點
static void Main(string[] args)
{
try
{
// 取得本機的識別名稱
string hostname = Dns.GetHostName();

// 取得主機的DNS資訊
IPAddress serverIP = Dns.Resolve(hostname).AddressList[0];

// Port = 80
string Port = "80";

// 建立伺服端TcpListener
TcpListener tcpListener = new TcpListener(serverIP, Int32.Parse(Port));

// 等候用戶端連線
tcpListener.Start();

Console.WriteLine("Server started at: " + serverIP.ToString() + ":" + Port);

while (true)
{
thread.Reset();

// 開始非同步作業嘗試接受用戶端連線
// 並定義所呼叫的Callback方法為AcceptCallback
tcpListener.BeginAcceptTcpClient(new AsyncCallback(AcceptCallback), tcpListener);

thread.WaitOne();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.StackTrace.ToString());
}
}

// 自訂Callback方法
public static void AcceptCallback(IAsyncResult asyncResult)
{
try
{
TcpListener tcpListener = (System.Net.Sockets.TcpListener)asyncResult.AsyncState;

// 以非同步作業接受用戶端連線
TcpClient tcpClient = tcpListener.EndAcceptTcpClient(asyncResult);

// 取得本機相關的網路資訊
IPEndPoint serverInfo = (IPEndPoint)tcpListener.LocalEndpoint;

// 以Client屬性取得用戶端之Socket物件
Socket clientSocket = tcpClient.Client;

// 取得連線用戶端相關的網路連線資訊
IPEndPoint clientInfo = (IPEndPoint)clientSocket.RemoteEndPoint;

Console.WriteLine("Server: " + serverInfo.Address.ToString() + ":" + serverInfo.Port.ToString());
Console.WriteLine("Client: " + clientInfo.Address.ToString() + ":" + clientInfo.Port.ToString());

thread.Set();
}
catch (Exception ex)
{
Console.WriteLine(ex.StackTrace.ToString());
}
}
}
}