实时在线用户功能

Yi.Framework.Net6/Yi.Framework.WebCore/SignalRHub/MainHub.cs

@@ -1,21 +1,74 @@
-using Microsoft.AspNetCore.SignalR;
+using IPTools.Core;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.SignalR;
+using Microsoft.Extensions.Logging;
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using Yi.Framework.Common.Enum;
 
 namespace Yi.Framework.WebCore.SignalRHub
 {
     public class MainHub : Hub
     {
+        private HttpContext _httpContext;
+        private ILogger<MainHub> _logger;
+        public MainHub(IHttpContextAccessor httpContextAccessor,ILogger<MainHub> logger)
+        {
+            _httpContext = httpContextAccessor.HttpContext;
+            _logger = logger;
+        }
+
+        private static readonly List<OnlineUser> clientUsers = new();
+
+        /// <summary>
+        /// 成功连接
+        /// </summary>
+        /// <returns></returns>
         public override Task OnConnectedAsync()
         {
+            var name = _httpContext.GetUserNameInfo();
+            var ip = _httpContext.GetClientIp();
+            var ip_info = IpTool.Search(ip);
+
+            var loginUser = _httpContext.GetUserEntityInfo(out _);
+            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)
+            {
+                OnlineUser users = new(Context.ConnectionId, name, loginUser.Id, ip)
+                {
+                    Location = ip_info.City
+                };
+                clientUsers.Add(users);
+                _logger.LogInformation($"{DateTime.Now}：{name},{Context.ConnectionId}连接服务端success，当前已连接{clientUsers.Count}个");
+     
+                //Clients.All.SendAsync(HubsConstant.MoreNotice, SendNotice());
+            }
+            //当有人加入，向全部客户端发送当前总数
+            Clients.All.SendAsync(HubTypeEnum.onlineNum.ToString(), clientUsers.Count);
+            //Clients.All.SendAsync(HubsConstant.OnlineUser, clientUsers);
             return base.OnConnectedAsync();
         }
 
+        /// <summary>
+        /// 断开连接
+        /// </summary>
+        /// <param name="exception"></param>
+        /// <returns></returns>
         public override Task OnDisconnectedAsync(Exception exception)
         {
+            var user = clientUsers.Where(p => p.ConnnectionId == Context.ConnectionId).FirstOrDefault();
+            //判断用户是否存在，否则添加集合
+            if (user != null)
+            {
+                clientUsers.Remove(user);
+                Clients.All.SendAsync(HubTypeEnum.onlineNum.ToString(), clientUsers.Count);
+                //Clients.All.SendAsync(HubsConstant.OnlineUser, clientUsers);
+                _logger.LogInformation($"用户{user?.Name}离开了，当前已连接{clientUsers.Count}个");
+            }
             return base.OnDisconnectedAsync(exception);
         }
 

Yi.Framework.Net6/Yi.Framework.WebCore/SignalRHub/OnlineUser.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Yi.Framework.WebCore.SignalRHub
+{
+    public class OnlineUser
+    {
+        /// <summary>
+        /// 客户端连接Id
+        /// </summary>
+        public string ConnnectionId { get; set; }
+        /// <summary>
+        /// 用户id
+        /// </summary>
+        public long? Userid { get; set; }
+        public string Name { get; set; }
+        public DateTime LoginTime { get; set; }
+        public string UserIP { get; set; }
+        public string Location { get; set; }
+
+        public OnlineUser(string clientid, string name, long? userid, string userip)
+        {
+            ConnnectionId = clientid;
+            Name = name;
+            LoginTime = DateTime.Now;
+            Userid = userid;
+            UserIP = userip;
+        }
+    }
+}