From aea0896356e616ab0568891591a15853e9907683 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=A9=99=E5=AD=90?= <454313500@qq.com>
Date: Sun, 10 Nov 2024 17:23:00 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8DGetUserAsync=E6=8A=A5?=
 =?UTF-8?q?=E9=94=99=E9=97=AE=E9=A2=98?=
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---
 .../Managers/UserMessageManager.cs                         | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Yi.Abp.Net8/module/chat-hub/Yi.Framework.ChatHub.Domain/Managers/UserMessageManager.cs b/Yi.Abp.Net8/module/chat-hub/Yi.Framework.ChatHub.Domain/Managers/UserMessageManager.cs
index 06d2a9ad..7bfc47dd 100644
--- a/Yi.Abp.Net8/module/chat-hub/Yi.Framework.ChatHub.Domain/Managers/UserMessageManager.cs
+++ b/Yi.Abp.Net8/module/chat-hub/Yi.Framework.ChatHub.Domain/Managers/UserMessageManager.cs
@@ -78,7 +78,12 @@ namespace Yi.Framework.ChatHub.Domain.Managers
         public async Task<ChatOnlineUserCacheItem?> GetUserAsync(Guid userId)
         {
             var key = new ChatOnlineUserCacheKey(CacheKeyPrefix);
-            var cacheUser = System.Text.Json.JsonSerializer.Deserialize<ChatOnlineUserCacheItem>(await RedisClient.HGetAsync(key.GetKey(), key.GetField(userId)));
+           var cacheUserOrNull= await RedisClient.HGetAsync(key.GetKey(), key.GetField(userId));
+           if (cacheUserOrNull is null)
+           {
+               return null;
+           }
+            var cacheUser = System.Text.Json.JsonSerializer.Deserialize<ChatOnlineUserCacheItem>(cacheUserOrNull);
             return cacheUser;
         }
     }