using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Text;
namespace ConsoleApplication1
{
public static class SocketTest
{
private static Encoding encode = Encoding.Default;
/// <summary>
/// 監聽請求
/// </summary>
/// <param name="port"></param>
public static void Listen(int port)
{
Socket listenSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
listenSocket.Bind(new IPEndPoint(IPAddress.Any, port));
listenSocket.Listen(100);
Console.WriteLine("Listen " + port + " ...");
while (true)
{
Socket acceptSocket = listenSocket.Accept();
string receiveData = Receive(acceptSocket, 5000); //5 seconds timeout.
Console.WriteLine("Receive：" + receiveData);
acceptSocket.Send(encode.GetBytes("ok"));
DestroySocket(acceptSocket); //import
}
}
/// <summary>
/// 發送數據
/// </summary>
/// <param name="host"></param>
/// <param name="port"></param>
/// <param name="data"></param>
/// <returns></returns>
public static string Send(string host, int port, string data)
{
string result = string.Empty;
Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
clientSocket.Connect(host, port);
clientSocket.Send(encode.GetBytes(data));
Console.WriteLine("Send：" + data);
result = Receive(clientSocket, 5000 * 2); //5*2 seconds timeout.
Console.WriteLine("Receive：" + result);
DestroySocket(clientSocket);
return result;
}
/// <summary>
/// 接收數據
/// </summary>
/// <param name="socket"></param>
/// <param name="timeout"></param>
/// <returns></returns>
private static string Receive(Socket socket, int timeout)
{
string result = string.Empty;
socket.ReceiveTimeout = timeout;
List<byte> data = new List<byte>();
byte[] buffer = new byte[1024];
int length = 0;
try
{
while ((length = socket.Receive(buffer)) > 0)
{
for (int j = 0; j < length; j++)
{
data.Add(buffer[j]);
}
if (length < buffer.Length)
{
break;
}
}
}
catch { }
if (data.Count > 0)
{
result = encode.GetString(data.ToArray(), 0, data.Count);
}
return result;
}
/// <summary>
/// 銷毀Socket對象
/// </summary>
/// <param name="socket"></param>
private static void DestroySocket(Socket socket)
{
if (socket.Connected)
{
socket.Shutdown(SocketShutdown.Both);
}
socket.Close();
}
}
}
