Witam mam problem, otóż napisałem aplikację kliencką:
using System.Net.Sockets;
using System.Net;
using System.IO;
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
namespace Client
{
class Program
{
private static TcpClient client = new TcpClient();
private static StreamReader reader;
private static StreamWriter writer;
private static bool refresh;
private static List<string> messages = new List<string>();
public static void Main()
{
Console.Title = "Client";
do //try to connect
{
Console.WriteLine("Connecting to server...");
try
{
client.Connect(IPAddress.Parse("127.0.0.1"), 8080);
}
catch (SocketException) { }
Thread.Sleep(10);
} while (!client.Connected);
// \/ CONNECTED \/
Console.WriteLine("Connected.");
reader = new StreamReader(client.GetStream());
writer = new StreamWriter(client.GetStream());
var sendTask = Task.Run(() => SendMessage()); //task for sending messages
var recieveTask = Task.Run(() => RecieveMessage()); //task for recieving messages
var updateConvTask = Task.Run(() => UpdateConversation()); //task for update console window
Task.WaitAll(sendTask, recieveTask); //wait for end of all tasks
}
private static void SendMessage()
{
string msgToSend = string.Empty;
do
{
Console.WriteLine("Enter a message to send to the server");
msgToSend = Console.ReadLine();
writer.WriteLine(msgToSend);
writer.Flush();
} while (!msgToSend.Equals("Exit"));
EndConnection();
}
private static void RecieveMessage()
{
try
{
while (client.Connected)
{
//Console.Clear();
string msg = reader.ReadLine();
if(msg != string.Empty)
{
if (msg == "%C") //special message from server, clear messages if recieve it
{
messages.Clear();
}
else
{
messages.Add(msg);
refresh = true; //refresh console window
}
}
//Console.Clear();
//Console.WriteLine(msgFromServer);
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
private static void UpdateConversation()
{
//string conversationTmp = string.Empty;
try
{
while (true)
{
if (refresh) //only if refresh
{
refresh = false;
Console.Clear();
messages.ForEach(msg => Console.WriteLine(msg)); //write all messages
Console.WriteLine();
}
}
}
catch (Exception) { }
}
private static void EndConnection()
{
reader.Close();
writer.Close();
client.Close();
}
}
}
Oraz serwerową:
using System;
using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Collections.Generic;
using System.Threading.Tasks;
namespace Server
{
class Program
{
private static List<Client> clients = new List<Client>();
private static TcpListener listener = null;
private static StreamReader reader = null;
private static StreamWriter writer = null;
private static List<Task> clientTasks = new List<Task>();
private static List<string> messages = new List<string>();
public static void Main()
{
Console.Title = "Server";
try
{
listener = new TcpListener(IPAddress.Parse("127.0.0.1"), 8080);
listener.Start();
Console.WriteLine("Server started...");
var connectTask = Task.Run(() => ConnectClients());
//var listenTask = Task.Run(() => ListenClients());
Task.WaitAll(connectTask);
}
catch (Exception e)
{
Console.WriteLine(e);
}
finally
{
if (listener != null)
{
listener.Stop();
}
}
}
private static void ConnectClients()
{
Console.WriteLine("Waiting for incoming client connections...");
while (true)
{
if (listener.Pending()) //if someone want to connect
{
clients.Add(new Client(listener.AcceptTcpClient(), "Client: " + (clients.Count + 1)));
Console.WriteLine(clients[clients.Count - 1].clientName + " connected to server.");
clientTasks.Add(Task.Run(() => HandleClient(clients[clients.Count - 1]))); //start new task for new client
}
}
}
private static void HandleClient(Client TCPClient)
{
string s = string.Empty;
writer = new StreamWriter(TCPClient.client.GetStream());
reader = new StreamReader(TCPClient.client.GetStream());
try
{
while (!(s = reader.ReadLine()).Equals("Exit") || (s == null))
{
if(!TCPClient.client.Connected)
{
Console.WriteLine("Client disconnected.");
clients.Remove(TCPClient);
}
Console.WriteLine("From client: " + TCPClient.clientName + " -> " + s);
messages.Add(TCPClient.clientName + ": " + s); //save new message
//Console.WriteLine(s);
foreach (Client c in clients) //refresh all connected clients
{
c.writer.WriteLine("%C"); //clear client
foreach (string msg in messages)
{
c.writer.WriteLine(msg);
c.writer.Flush();
}
}
}
CloseServer();
}
catch (Exception e) { Console.WriteLine(e); }
}
private static void CloseServer()
{
reader.Close();
writer.Close();
clients.ForEach(tcpClient => tcpClient.client.Close());
}
}
}
I klasę pomocniczą, Client:
using System.Net.Sockets;
using System.IO;
namespace Server
{
class Client
{
public TcpClient client;
public StreamWriter writer;
public string clientName;
public Client(TcpClient client, string clientName)
{
this.client = client;
writer = new StreamWriter(client.GetStream());
this.clientName = clientName;
}
}
}
Klienci wysyłają wiadomości do serwera który przechowuje całą konwersację, po otrzymaniu wiadomości wysyła całą konwersację do wszystkich klientów odświeżając tym samym ich okna.
Program działa dobrze dla jednego klienta, ale kiedy mam dwóch, na początku działa ale gdy jeden klient wyśle wiadomość, a potem drugi wyśle to tak jakby jeden z klientów pisze za dwóch raz za jednego raz za drugiego a drugi nie może napisać nic.
