diff --git a/Communications/SimApiLoginItem.cs b/Communications/SimApiLoginItem.cs
index 68d978a..17bdda2 100644
--- a/Communications/SimApiLoginItem.cs
+++ b/Communications/SimApiLoginItem.cs
@@ -1,4 +1,5 @@
 using System;
+
 namespace SimApi.Communications
 {
     /// <summary>
@@ -7,8 +8,9 @@ namespace SimApi.Communications
     public class SimApiLoginItem
     {
         //登录用户的ID
-        public int Id { get; set; }
+        public string Id { get; set; }
+
         //登录用户来源
         public string[] Type { get; set; }
     }
-}
+}
\ No newline at end of file
diff --git a/Controllers/SimApiBaseController.cs b/Controllers/SimApiBaseController.cs
index 046aae4..e0d7e96 100644
--- a/Controllers/SimApiBaseController.cs
+++ b/Controllers/SimApiBaseController.cs
@@ -85,7 +85,5 @@ namespace SimApi.Controllers
         {
             return new SimApiBaseResponse<string>();
         }
-
-
     }
 }
\ No newline at end of file
diff --git a/Controllers/SimApiCommonController.cs b/Controllers/SimApiCommonController.cs
index a716819..48a90d5 100644
--- a/Controllers/SimApiCommonController.cs
+++ b/Controllers/SimApiCommonController.cs
@@ -35,10 +35,13 @@ namespace SimApi.Controllers
         /// </summary>
         /// <returns></returns>
         [HttpPost("/auth/check"), SimApiDoc("认证", "检测登陆")]
-        public SimApiBaseResponse<int> CheckLogin()
+        public SimApiBaseResponse<string> CheckLogin()
         {
             ErrorWhenNull(LoginInfo, 401);
-            return new SimApiBaseResponse<int> {Data = LoginInfo.Id};
+            return new SimApiBaseResponse<string>
+            {
+                Data = LoginInfo.Id
+            };
         }
 
         /// <summary>
diff --git a/Helpers/SimApiAuth.cs b/Helpers/SimApiAuth.cs
index fd5ed55..6a8762c 100644
--- a/Helpers/SimApiAuth.cs
+++ b/Helpers/SimApiAuth.cs
@@ -23,7 +23,7 @@ namespace SimApi.Helpers
         /// </summary>
         /// <param name="id"></param>
         /// <returns></returns>
-        public string Login(int id, string type = "user", string token = null)
+        public string Login(string id, string type = "user", string token = null)
         {
             return Login(id, new[] { type }, token);
         }
@@ -34,7 +34,7 @@ namespace SimApi.Helpers
         /// <param name="id"></param>
         /// <param name="type"></param>
         /// <returns></returns>
-        public string Login(int id, string[] type, string uuid = null)
+        public string Login(string id, string[] type, string uuid = null)
         {
             if (uuid == null)
             {
diff --git a/Logger/SimApiLogger.cs b/Logger/SimApiLogger.cs
index 0dc2772..ba4f6b3 100644
--- a/Logger/SimApiLogger.cs
+++ b/Logger/SimApiLogger.cs
@@ -12,15 +12,9 @@ namespace SimApi.Logger
             Name = name;
         }
 
-        public IDisposable BeginScope<TState>(TState state)
-        {
-            return null;
-        }
+        public IDisposable BeginScope<TState>(TState state) => default!;
 
-        public bool IsEnabled(LogLevel logLevel)
-        {
-            return true;
-        }
+        public bool IsEnabled(LogLevel logLevel) => true;
 
         public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception exception,
             Func<TState, Exception, string> formatter)
diff --git a/SimApiExtensions.cs b/SimApiExtensions.cs
index 4a742cb..24023d2 100644
--- a/SimApiExtensions.cs
+++ b/SimApiExtensions.cs
@@ -23,7 +23,7 @@ namespace SimApi
             var simApiOptions = new SimApiOptions();
             options?.Invoke(simApiOptions);
 
-            // 是否使用SIMAUTH
+            // 是否使用 AUTH
             if (simApiOptions.EnableSimApiAuth)
             {
                 builder.AddScoped<SimApiAuth>();
@@ -43,7 +43,11 @@ namespace SimApi
                 {
                     foreach (var group in docOptions.ApiGroups)
                     {
-                        x.SwaggerDoc(group.Id, new OpenApiInfo {Title = group.Name, Description = group.Description});
+                        x.SwaggerDoc(group.Id, new OpenApiInfo
+                        {
+                            Title = group.Name,
+                            Description = group.Description
+                        });
                     }
 
                     x.EnableAnnotations();
@@ -61,9 +65,15 @@ namespace SimApi
                                         new OpenApiSecurityScheme
                                         {
                                             Reference = new OpenApiReference
-                                                {Type = ReferenceType.SecurityScheme, Id = "HeaderToken"}
+                                            {
+                                                Type = ReferenceType.SecurityScheme,
+                                                Id = "HeaderToken"
+                                            }
                                         },
-                                        new[] {"readAccess", "writeAccess"}
+                                        new[]
+                                        {
+                                            "readAccess", "writeAccess"
+                                        }
                                     }
                                 });
                                 haveSimApiAuth = true;
@@ -121,9 +131,15 @@ namespace SimApi
                                 new OpenApiSecurityScheme
                                 {
                                     Reference = new OpenApiReference
-                                        {Type = ReferenceType.SecurityScheme, Id = "oauth2"}
+                                    {
+                                        Type = ReferenceType.SecurityScheme,
+                                        Id = "oauth2"
+                                    }
                                 },
-                                new[] {"SimApiAuth"}
+                                new[]
+                                {
+                                    "SimApiAuth"
+                                }
                             }
                         });
                     }
@@ -131,7 +147,11 @@ namespace SimApi
                     if (haveSimApiAuth)
                     {
                         x.AddSecurityDefinition("HeaderToken",
-                            new OpenApiSecurityScheme {Name = "Token", In = ParameterLocation.Header});
+                            new OpenApiSecurityScheme
+                            {
+                                Name = "Token",
+                                In = ParameterLocation.Header
+                            });
                     }
                 });
             }
@@ -139,17 +159,17 @@ namespace SimApi
             // 使用Header转发，应对代理后获取真实ip
             if (simApiOptions.EnableForwardHeaders)
             {
-                builder.Configure<ForwardedHeadersOptions>(options =>
+                builder.Configure<ForwardedHeadersOptions>(fwOptions =>
                 {
-                    options.ForwardedHeaders = ForwardedHeaders.All;
-                    options.KnownNetworks.Clear();
-                    options.KnownProxies.Clear();
+                    fwOptions.ForwardedHeaders = ForwardedHeaders.All;
+                    fwOptions.KnownNetworks.Clear();
+                    fwOptions.KnownProxies.Clear();
                 });
             }
 
             if (simApiOptions.EnableLowerUrl)
             {
-                builder.AddRouting(options => options.LowercaseUrls = true);
+                builder.AddRouting(rOptions => rOptions.LowercaseUrls = true);
             }
 
             if (simApiOptions.EnableSimApiStorage)
@@ -169,13 +189,14 @@ namespace SimApi
         /// <returns></returns>
         public static IApplicationBuilder UseSimApi(this IApplicationBuilder builder)
         {
-            var options = builder.ApplicationServices.GetService<SimApiOptions>();
+            var options = builder.ApplicationServices.GetRequiredService<SimApiOptions>();
             if (options.EnableLogger)
             {
-                builder.ApplicationServices.GetService<ILoggerFactory>().AddProvider(new SimApiLoggerProvider());
+                builder.ApplicationServices.GetRequiredService<ILoggerFactory>()
+                    .AddProvider(new SimApiLoggerProvider());
             }
 
-            var logger = builder.ApplicationServices.GetService<ILogger<SimApiLogger>>();
+            var logger = builder.ApplicationServices.GetRequiredService<ILogger<SimApiLogger>>();
 
             if (options.EnableForwardHeaders)
             {