我正在研究一个简单的C＃TCP聊天程序。我在使用断开功能时遇到麻烦。客户端单击断开连接按钮后，它将成功离开服务器，并且服务器发送“ [客户端]已离开服务器”。所有其他连接的客户端。但是，当另一个连接的客户端发送消息时，它将引发异常：System.InvalidOperationException: The operation is not allowed on non-connected sockets.。是什么导致这种情况发生？
我已经看了半个小时的代码，不知道是什么原因造成的。
客户端处理程序类：
public class handleClinet
{
TcpClient clientSocket;
string clNo;
Hashtable clientsList;
public void startClient(TcpClient inClientSocket, string clineNo, Hashtable cList)
{
this.clientSocket = inClientSocket;
this.clNo = clineNo;
this.clientsList = cList;
Thread ctThread = new Thread(doChat);
ctThread.Start();
}
private void doChat()
{
int requestCount = 0;
byte[] bytesFrom = new byte[10025];
string dataFromClient = null;
Byte[] sendBytes = null;
string serverResponse = null;
string rCount = null;
requestCount = 0;
try{
while (Server.isOnline = true)
{
requestCount = requestCount + 1;
NetworkStream networkStream = clientSocket.GetStream();
networkStream.Read(bytesFrom, 0, (int)clientSocket.ReceiveBufferSize);
dataFromClient = System.Text.Encoding.ASCII.GetString(bytesFrom);
dataFromClient = dataFromClient.Substring(0, dataFromClient.IndexOf("$"));
Console.WriteLine("Message from " + clNo + ": " + dataFromClient);
rCount = Convert.ToString(requestCount);
Server.broadcast (dataFromClient, clNo, true);
}
} catch (Exception ex){
Console.ForegroundColor = ConsoleColor.Yellow;
Server.broadcast(clNo + " has left the server.", clNo, false);
Console.WriteLine(clNo + " has left the server.");
Disconnect(clNo);
}
}
void Disconnect(string user){
TcpClient dicl;
dicl = (TcpClient)clientsList[user];
if(dicl.Client.Connected == false){
dicl.Close();
clientsList.Remove(user);
}
}
}
客户端断开按钮代码：
// Disconnect from server.
public static void Disconnect(){
serverStream.Close();
clientSocket.Close();
}