新增系统通知实时通知给连接的客户端

ZR.Admin.WebApi/Hubs/MessageHub.cs

@@ -1,13 +1,12 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Threading.Tasks;
+using Infrastructure.Constant;
 using Infrastructure.Model;
-using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.SignalR;
-using ZR.Admin.WebApi.Filters;
 using ZR.Model;
+using ZR.Service.System.IService;
 
 namespace ZR.Admin.WebApi.Hubs
 {
@@ -15,6 +14,20 @@ namespace ZR.Admin.WebApi.Hubs
     {
         //创建用户集合，用于存储所有链接的用户数据
         private static readonly List<OnlineUsers> clientUsers = new();
+        private readonly NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();
+        private ISysNoticeService SysNoticeService;
+
+        public MessageHub(ISysNoticeService noticeService)
+        {
+            SysNoticeService = noticeService;
+        }
+
+        private ApiResult SendNotice()
+        {
+            var result = SysNoticeService.GetSysNotices();
+
+            return new ApiResult(200, "success", result);
+        }
 
         #region 客户端连接
 
@@ -25,16 +38,18 @@ namespace ZR.Admin.WebApi.Hubs
         public override Task OnConnectedAsync()
         {
             var name = Context.User.Identity.Name;
-            
+
             var user = clientUsers.Any(u => u.ConnnectionId == Context.ConnectionId);
             //判断用户是否存在，否则添加集合
             if (!user && Context.User.Identity.IsAuthenticated)
             {
                 clientUsers.Add(new OnlineUsers(Context.ConnectionId, name));
                 Console.WriteLine($"{DateTime.Now}：{name},{Context.ConnectionId}连接服务端success，当前已连接{clientUsers.Count}个");
+                Clients.All.SendAsync("welcome", $"欢迎您：{name},当前时间：{DateTime.Now}");
+                Clients.All.SendAsync(HubsConstant.MoreNotice, SendNotice());
             }
-
-            Clients.All.SendAsync("onlineNum", clientUsers.Count);
+            
+            Clients.All.SendAsync(HubsConstant.OnlineNum, clientUsers.Count);
             return base.OnConnectedAsync();
         }
 
@@ -50,7 +65,7 @@ namespace ZR.Admin.WebApi.Hubs
             {
                 Console.WriteLine($"用户{user?.Name}离开了，当前已连接{clientUsers.Count}个");
                 clientUsers.Remove(user);
-                Clients.All.SendAsync("onlineNum", clientUsers.Count);
+                Clients.All.SendAsync(HubsConstant.OnlineNum, clientUsers.Count);
             }
             return base.OnDisconnectedAsync(exception);
         }