Introduce DriveControllerAction

cnblogs-dudu · cnblogs-dudu · commit a6961d46cfed · 2019-05-18T17:36:22.000+08:00
diff --git a/src/MiddlewareAction/Startup.cs b/src/MiddlewareAction/Startup.cs
@@ -5,6 +5,7 @@
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.Abstractions;
 using Microsoft.AspNetCore.Mvc.Controllers;
@@ -45,15 +46,20 @@ public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
                 {
                     var routeData = new RouteData();
                     routeData.Values.Add("message", "Hello World!");
-                    var actionDesciptor = CreateActionDescriptor<HomeController>(nameof(HomeController.Index), routeData);
-                    var actionContext = new ActionContext(context, routeData, actionDesciptor);                    
-                    var actionInvokerFactory = app.ApplicationServices.GetRequiredService<IActionInvokerFactory>();
-                    var invoker = actionInvokerFactory.CreateInvoker(actionContext);
-                    await invoker.InvokeAsync();
+                    await DriveControllerAction(context, routeData, app);
                 });
             });
         }
 
+        private async Task DriveControllerAction(HttpContext context , RouteData routeData, IApplicationBuilder app)
+        {
+            var actionDesciptor = CreateActionDescriptor<HomeController>(nameof(HomeController.Index), routeData);
+            var actionContext = new ActionContext(context, routeData, actionDesciptor);
+            var actionInvokerFactory = app.ApplicationServices.GetRequiredService<IActionInvokerFactory>(); //ActionInvokerFactory
+            var invoker = actionInvokerFactory.CreateInvoker(actionContext); //ControllerActionInvoker
+            await invoker.InvokeAsync();
+        }
+
         private static ActionDescriptor CreateActionDescriptor<TController>(
             string actionName, RouteData routeData)
         {
@@ -79,6 +85,7 @@ private static ActionDescriptor CreateActionDescriptor<TController>(
             routeData.Values.Add("controller", actionDesciptor.ControllerName.Replace("Controller", ""));
             routeData.Values.Add("action", actionDesciptor.ActionName);
 
+            //For binding action parameters
             foreach (var routeValue in routeData.Values)
             {
                 var parameter = new ParameterDescriptor();
diff --git a/src/MiddlewareAction/Views/Shared/_Layout.cshtml b/src/MiddlewareAction/Views/Shared/_Layout.cshtml
@@ -3,7 +3,7 @@
 <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>@ViewData["Title"] - MiddlewareAction</title>
+    <title>@ViewData["Title"] - MvcInMiddleware</title>
 
     <environment include="Development">
         <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.css" />
@@ -21,7 +21,7 @@
     <header>
         <nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">
             <div class="container">
-                <a class="navbar-brand" asp-area="" asp-controller="Home" asp-action="Index">MiddlewareAction</a>
+                <a class="navbar-brand" asp-area="" asp-controller="Home" asp-action="Index">MvcInMiddleware</a>
                 <button class="navbar-toggler" type="button" data-toggle="collapse" data-target=".navbar-collapse" aria-controls="navbarSupportedContent"
                         aria-expanded="false" aria-label="Toggle navigation">
                     <span class="navbar-toggler-icon"></span>
@@ -48,7 +48,7 @@
 
     <footer class="border-top footer text-muted">
         <div class="container">
-            &copy; 2019 - MiddlewareAction - <a asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>
+            &copy; 2019 - MvcInMiddleware - <a asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>
         </div>
     </footer>
 
