c# WebSocket 服务器与客户端通讯

1、下载WebScoket 服务器类库Fleck.dll 与客户端类库websocket-sharp.dll ：  https://pan.baidu.com/s/1o9jU22e

2、WebSocket 服务器代码：

  List<IWebSocketConnection> allSockets;
        public void Func()
        {
            try
            {
                FleckLog.Level = LogLevel.Debug;
                allSockets = new List<IWebSocketConnection>();

                var server = new WebSocketServer("ws://0.0.0.0:9999");

                server.Start(socket =>
                {
                    socket.OnOpen = () =>
                    {
                        allSockets.Add(socket);
                    };

                    socket.OnClose = () =>
                    {

                        allSockets.Remove(socket);
                    };

                    socket.OnMessage = message =>
                    {
                        //显示接收的客户端信息
                        txt_receive.Text += message + "\r\n";

                        //发送信息给客户端
                       allSockets.ToList().ForEach(s => s.Send("test"));

                    };
                });
            }

            catch (Exception e)
            {
                MessageBox.Show("服务器开启失败！\r\n" + e.ToString());

            }

        }

3、WebSocket 客户端代码：

 WebSocket ws;
 bool isConnected;
        
        public void Connect()
        {
            try
            {
                if (isConnected == false)
                {
                    ws = new WebSocket("ws://localhost:9999");
                    ws.OnOpen += ws_OnOpen;
                    ws.OnMessage += ws_OnMessage;
                    ws.OnClose += ws_OnClose;
                    ws.Connect();
                }
            }
            catch (Exception ex)
            {
            }
        }

        void ws_OnOpen(object sender, EventArgs e)
        {
            SetTextBoxText(textBox1, "已连接服务器" + "\r\n");
            isConnected = true;

        }
        void ws_OnClose(object sender, CloseEventArgs e)
        {
            SetTextBoxText(textBox1, "服务器已断开" + "\r\n");
            isConnected = false;
        }

        void ws_OnMessage(object sender, MessageEventArgs e)
        {
            try
            {
                string message = e.Data;

                //显示接收的服务器信息
                SetTextBoxText(textBox1, message);

                //给服务器发送信息
                ws.Send("Hello World!");


            }

            catch (Exception ex)
            {
            }
        }



        public delegate void DelSetTextBoxText(TextBox txtBox, string str);
        public void SetTextBoxText(TextBox txtBox, string str)
        {
            if (txtBox.InvokeRequired)
            {
                DelSetTextBoxText del = new DelSetTextBoxText(SetTextBoxText);
                this.Invoke(del, new object[] { txtBox, str });
            }
            else
            {
                txtBox.Text += str + "\r\n";
            }
        }