diff --git a/Helpers/SimApiAuth.cs b/Helpers/SimApiAuth.cs
index f529518..25a34dd 100644
--- a/Helpers/SimApiAuth.cs
+++ b/Helpers/SimApiAuth.cs
@@ -1,3 +1,4 @@
+#nullable enable
 using System;
 using System.Text.Json;
 using Microsoft.Extensions.Caching.Distributed;
@@ -14,6 +15,8 @@ public class SimApiAuth(IDistributedCache cache)
     /// 产生一个Token记录并返回Token
     /// </summary>
     /// <param name="id"></param>
+    /// <param name="type"></param>
+    /// <param name="token"></param>
     /// <returns></returns>
     public string Login(string id, string type = "user", string token = null)
     {
@@ -25,6 +28,7 @@ public class SimApiAuth(IDistributedCache cache)
     /// </summary>
     /// <param name="id"></param>
     /// <param name="type"></param>
+    /// <param name="uuid"></param>
     /// <returns></returns>
     public string Login(string id, string[] type, string uuid = null)
     {
@@ -34,6 +38,17 @@ public class SimApiAuth(IDistributedCache cache)
         return uuid;
     }
 
+    /// <summary>
+    /// 获取登陆信息
+    /// </summary>
+    /// <param name="token"></param>
+    /// <returns></returns>
+    public SimApiLoginItem? GetLogin(string token)
+    {
+        var login = cache.GetString(token);
+        return login != null ? JsonSerializer.Deserialize<SimApiLoginItem>(login) : default;
+    }
+
     /// <summary>
     /// 退出登陆
     /// </summary>
diff --git a/Middlewares/SimApiAuthMiddleware.cs b/Middlewares/SimApiAuthMiddleware.cs
index 8bf4cc0..809737c 100644
--- a/Middlewares/SimApiAuthMiddleware.cs
+++ b/Middlewares/SimApiAuthMiddleware.cs
@@ -3,6 +3,7 @@ using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Caching.Distributed;
 using SimApi.Communications;
+using SimApi.Helpers;
 
 namespace SimApi.Middlewares;
 
@@ -11,7 +12,7 @@ namespace SimApi.Middlewares;
 /// </summary>
 public class SimApiAuthMiddleware(RequestDelegate next)
 {
-    public Task Invoke(HttpContext httpContext, IDistributedCache cache)
+    public Task Invoke(HttpContext httpContext, IDistributedCache cache, SimApiAuth auth)
     {
         string token = null;
         if (httpContext.Request.Headers.TryGetValue("Token", out var header))
@@ -21,10 +22,10 @@ public class SimApiAuthMiddleware(RequestDelegate next)
 
         if (!string.IsNullOrEmpty(token))
         {
-            var login = cache.GetString(token);
+            var login = auth.GetLogin(token);
             if (login != null)
             {
-                httpContext.Items.Add("LoginInfo", JsonSerializer.Deserialize<SimApiLoginItem>(login));
+                httpContext.Items.Add("LoginInfo", login);
             }
         }