feat: 完善聊天模块

Yi.Abp.Net8/module/chat-hub/Yi.Framework.ChatHub.Domain/SignalRHubs/ChatCenterHub.cs

@@ -0,0 +1,68 @@
+using FreeRedis;
+using Mapster;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.SignalR;
+using Microsoft.Extensions.Options;
+using Volo.Abp.AspNetCore.SignalR;
+using Volo.Abp.Caching;
+using Yi.Framework.ChatHub.Domain.Shared.Caches;
+using Yi.Framework.ChatHub.Domain.Shared.Consts;
+using Yi.Framework.ChatHub.Domain.Shared.Model;
+
+namespace Yi.Framework.ChatHub.Domain.SignalRHubs
+{
+    [HubRoute("/hub/chat")]
+    [Authorize]
+    public class ChatCenterHub : AbpHub
+    {
+        /// <summary>
+        /// 使用懒加载防止报错
+        /// </summary>
+        private IRedisClient RedisClient => LazyServiceProvider.LazyGetRequiredService<IRedisClient>();
+        /// <summary>
+        /// 缓存前缀
+        /// </summary>
+        private string CacheKeyPrefix => LazyServiceProvider.LazyGetRequiredService<IOptions<AbpDistributedCacheOptions>>().Value.KeyPrefix;
+        public ChatCenterHub()
+        {
+        }
+
+        /// <summary>
+        /// 用户进入聊天室
+        /// </summary>
+        /// <returns></returns>
+        public override async Task OnConnectedAsync()
+        {
+            var key = new ChatOnlineUserCacheKey(CacheKeyPrefix);
+            var item = new ChatOnlineUserCacheItem()
+            {
+                UserId = CurrentUser.Id!.Value,
+                ClientId = Context.ConnectionId,
+                UserName = CurrentUser.UserName!
+            };
+
+
+            await RedisClient.HSetAsync(key.GetKey(), key.GetField(CurrentUser.Id!.Value), item);
+
+
+            //连接时，还需要去查询用户包含在的群组，将群主全部加入.Todo
+            await Groups.AddToGroupAsync(Context.ConnectionId, ChatConst.AllGroupName);
+            await Clients.All.SendAsync("liveUser", item.Adapt<ChatUserModel>());
+
+
+        }
+
+        /// <summary>
+        /// 用户退出聊天室
+        /// </summary>
+        /// <param name="exception"></param>
+        /// <returns></returns>
+        public async override Task OnDisconnectedAsync(Exception? exception)
+        {
+            var key = new ChatOnlineUserCacheKey(CacheKeyPrefix);
+            await RedisClient.HDelAsync(key.GetKey(), key.GetField(CurrentUser.Id!.Value));
+            await Groups.RemoveFromGroupAsync(Context.ConnectionId, ChatConst.AllGroupName);
+            await Clients.All.SendAsync("offlineUser", CurrentUser.Id!.Value);
+        }
+    }
+}