添加项目文件。

CoreCms.Net.Utility/Hub/ChatHub.cs

@@ -0,0 +1,103 @@
+/***********************************************************************
+ *            Project: CoreCms.Net                                     *
+ *                Web: https://CoreCms.Net                             *
+ *        ProjectName: 核心内容管理系统                                *
+ *             Author: 大灰灰                                          *
+ *              Email: JianWeie@163.com                                *
+ *         CreateTime: 2020-09-06 23:39:37
+ *        Description: 暂无
+ ***********************************************************************/
+
+
+using Microsoft.AspNetCore.SignalR;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CoreCms.Net.Utility.Hub
+{
+    public class ChatHub : Hub<IChatClient>
+    {
+        /// <summary>
+        /// 向指定群组发送信息
+        /// </summary>
+        /// <param name="groupName">组名</param>
+        /// <param name="message">信息内容</param>  
+        /// <returns></returns>
+        public async Task SendMessageToGroupAsync(string groupName, string message)
+        {
+            await Clients.Group(groupName).ReceiveMessage(message);
+        }
+
+        /// <summary>
+        /// 加入指定组
+        /// </summary>
+        /// <param name="groupName">组名</param>
+        /// <returns></returns>
+        public async Task AddToGroup(string groupName)
+        {
+            await Groups.AddToGroupAsync(Context.ConnectionId, groupName);
+        }
+
+        /// <summary>
+        /// 退出指定组
+        /// </summary>
+        /// <param name="groupName">组名</param>
+        /// <returns></returns>
+        public async Task RemoveFromGroup(string groupName)
+        {
+            await Groups.RemoveFromGroupAsync(Context.ConnectionId, groupName);
+        }
+
+        /// <summary>
+        /// 向指定成员发送信息
+        /// </summary>
+        /// <param name="user">成员名</param>
+        /// <param name="message">信息内容</param>
+        /// <returns></returns>
+        public async Task SendPrivateMessage(string user, string message)
+        {
+            await Clients.User(user).ReceiveMessage(message);
+        }
+
+        /// <summary>
+        /// 当连接建立时运行
+        /// </summary>
+        /// <returns></returns>
+        public override Task OnConnectedAsync()
+        {
+            //TODO..
+            return base.OnConnectedAsync();
+        }
+
+        /// <summary>
+        /// 当链接断开时运行
+        /// </summary>
+        /// <param name="ex"></param>
+        /// <returns></returns>
+        public override Task OnDisconnectedAsync(System.Exception ex)
+        {
+            //TODO..
+            return base.OnDisconnectedAsync(ex);
+        }
+
+
+        public async Task SendMessage(string user, string message)
+        {
+            await Clients.All.ReceiveMessage(user, message);
+        }
+
+        //定于一个通讯管道，用来管理我们和客户端的连接
+        //1、客户端调用 GetLatestCount，就像订阅
+        public async Task GetLatestCount(string random)
+        {
+            //2、服务端主动向客户端发送数据，名字千万不能错
+            var dt = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
+
+            await Clients.All.ReceiveUpdate(dt);
+            //3、客户端再通过 ReceiveUpdate ，来接收
+
+        }
+    }
+}