diff --git a/Apewer/Web/ApiContext.cs b/Apewer/Web/ApiContext.cs
index 424b875..63d1c94 100644
--- a/Apewer/Web/ApiContext.cs
+++ b/Apewer/Web/ApiContext.cs
@@ -71,6 +71,9 @@ namespace Apewer.Web
 
         }
 
+        /// <summary>自定义数据。若此自定义数据实现了 <see cref="IDisposable" />，将会与 Context 一起自动释放。</summary>
+        public object Data { get; set; }
+
     }
 
 }
diff --git a/Apewer/Web/ApiController.cs b/Apewer/Web/ApiController.cs
index 630c3c9..1a691a8 100644
--- a/Apewer/Web/ApiController.cs
+++ b/Apewer/Web/ApiController.cs
@@ -8,16 +8,21 @@ namespace Apewer.Web
     public abstract class ApiController
     {
 
+        internal ApiContext _context = null;
+
         internal Func<ApiController, bool> _func = null;
         internal Action<ApiController> _action = null;
         internal Action<ApiController> _default = null;
         internal ApiOptions _options = null;
 
+        /// <summary>获取 API 上下文。</summary>
+        public virtual ApiContext Context { get => _context; }
+
         /// <summary>获取 API 请求模型。</summary>
-        public ApiRequest Request { get; internal set; }
+        public virtual ApiRequest Request { get => _context?.Request; }
 
         /// <summary>获取 API 响应模型。</summary>
-        public ApiResponse Response { get; internal set; }
+        public virtual ApiResponse Response { get => _context?.Response; }
 
         /// <summary>创建控制器实例。可通过初始化程序返回布尔值，以执行 Function 解析。</summary>
         /// <param name="initializer">初始化程序。当返回 False 时等同于声明 Independent，将不再匹配 Function 和 Default。</param>
diff --git a/Apewer/Web/ApiProcessor.cs b/Apewer/Web/ApiProcessor.cs
index b94e7f5..7ae4493 100644
--- a/Apewer/Web/ApiProcessor.cs
+++ b/Apewer/Web/ApiProcessor.cs
@@ -161,10 +161,10 @@ namespace Apewer.Web
         static Type Void = typeof(void);
 
         // 创建控制器实例
-        static ApiController CreateController(Type type, ApiRequest request, ApiResponse response, ApiOptions options)
+        static ApiController CreateController(Type type, ApiContext context)
         {
             var controller = (ApiController)Activator.CreateInstance(type);
-            ApiUtility.SetProperties(controller, request, response, options);
+            ApiUtility.SetContext(controller, context);
             return controller;
         }
 
@@ -271,7 +271,7 @@ namespace Apewer.Web
             try
             {
                 // 准备控制器。
-                controller = CreateController(action.Type, _context.Request, _context.Response, _context.Options);
+                controller = CreateController(action.Type, _context);
 
                 // 准备参数。
                 var parameters = action.Parameters;
@@ -333,7 +333,7 @@ namespace Apewer.Web
                     var controller = null as ApiController;
                     try
                     {
-                        controller = CreateController(@default, request, response, options);
+                        controller = CreateController(@default, _context);
                         Invoke(controller, application, null, options, request, response);
                     }
                     catch (Exception ex)
@@ -353,7 +353,7 @@ namespace Apewer.Web
                 var controller = null as ApiController;
                 try
                 {
-                    controller = CreateController(application.Type, request, response, options);
+                    controller = CreateController(application.Type, _context);
                     Invoke(controller, application, function, options, request, response);
                 }
                 catch (Exception ex)
diff --git a/Apewer/Web/ApiUtility.cs b/Apewer/Web/ApiUtility.cs
index 0e56a23..4e8c8d9 100644
--- a/Apewer/Web/ApiUtility.cs
+++ b/Apewer/Web/ApiUtility.cs
@@ -438,13 +438,13 @@ namespace Apewer.Web
 
         #region ApiController
 
-        /// <summary>设置控制器属性。</summary>
-        public static void SetProperties(ApiController controller, ApiRequest request, ApiResponse response, ApiOptions options)
+        /// <summary>设置控制器的 <see cref="ApiController.Context" /> 属性。</summary>
+        /// <exception cref="ArgumentNullException" />
+        public static void SetContext(ApiController controller, ApiContext context)
         {
-            if (controller == null) return;
-            controller.Request = request;
-            controller.Response = response;
-            controller._options = options;
+            if (controller == null) throw new ArgumentNullException(nameof(controller));
+            if (context == null) throw new ArgumentNullException(nameof(context));
+            controller._context = context;
         }
 
         /// <summary>获取由控制器构造函数指定的初始化程序。</summary>
@@ -453,9 +453,6 @@ namespace Apewer.Web
         /// <summary>获取由控制器构造函数指定的默认程序。</summary>
         public static Action<ApiController> GetDefault(this ApiController controller) => controller == null ? null : controller._default;
 
-        /// <summary>获取选项。</summary>
-        public static ApiOptions GetOptions(this ApiController controller) => controller == null ? null : controller._options;
-
         /// <summary>以 POST 转移请求到其它 URL。</summary>
         private static string Transfer(ApiController controller, string url, string application = null, string function = null)
         {
@@ -499,15 +496,14 @@ namespace Apewer.Web
             return null;
         }
 
-        /// <summary>创建指定类型的控制器，并引用当前控制器的 Request 和 Response。</summary>
-        public static T Create<T>(this ApiController current) where T : ApiController, new()
+        /// <summary>创建指定类型的控制器，并引用参照控制器的 Context。</summary>
+        /// <exception cref="ArgumentNullException" />
+        public static T Create<T>(this ApiController reference) where T : ApiController, new()
         {
+            if (reference == null) throw new ArgumentNullException(nameof(reference));
+
             var controller = new T();
-            if (current != null)
-            {
-                controller.Request = current.Request;
-                controller.Response = current.Response;
-            }
+            controller._context = reference.Context;
             return controller;
         }
 
@@ -515,7 +511,7 @@ namespace Apewer.Web
         public static void UseDefault(this ApiController current)
         {
             if (current == null) return;
-            var options = GetOptions(current);
+            var options = current._context?.Options;
             if (options == null) return;
             var type = options.Default;
             if (type == null) return;
@@ -523,7 +519,7 @@ namespace Apewer.Web
             try
             {
                 controller = (ApiController)Activator.CreateInstance(type);
-                SetProperties(controller, current.Request, current.Response, options);
+                SetContext(controller, current.Context);
             }
             catch
             {