ASP.NET MVC初始化控制器和编程呼吁采取行动 [英] ASP.NET MVC initialize Controller and call action programatically

问题描述

我建立一个计划的作业控制器 - 这些工作将调用控制器和动作捕捉的结果。我宁愿这一切都发生在后台，不涉及HTTP调用。

它有点像单元测试会发生什么 - 例如：

  VAR控制器=新的TestController（）; 
 VAR的结果= controller.Index（TestParameter）作为的ViewResult; 
  

的问题是在本实施例的控制器和动作不是动态的，没有人知道如何初始化控制器和调用与控制器和行动作为字符串paramater名称的行动？比如 -

 公众的ActionResult运行（字符串controllerName，串actionName）
 {
无功控制器=新控制器（controllerName）; 
 VAR的结果= controller.action（actionName）（TestParameter）作为的ViewResult。 
返回内容（结果）; 
} 
  

解决方案

使用的ControllerFactory ActionDescriptor 来动态地执行操作沿>：

 公众的ActionResult运行（字符串controllerName，串actionName）
 {
 //获取控制
 VAR ctrlFactory = ControllerBuilder.Current.GetControllerFactory（）; 
 VAR CTRL = ctrlFactory.CreateController（this.Request.RequestContext，controllerName）作为控制器; 
变种ctrlContext =新的ControllerContext（this.Request.RequestContext，CTRL）; 
变种ctrlDesc =新ReflectedControllerDescriptor（ctrl.GetType（））; 
 
 //获取行动
 VAR actionDesc = ctrlDesc.FindAction（ctrlContext，actionName）; 
 
 //执行
 VAR的结果= actionDesc.Execute（ctrlContext，新的字典<字符串对象> 
 {
 {参数名称，TestParameter} 
}）为的ActionResult; 
 
 //返回其他行动结果作为当前动作的结果
返回结果; 
} 
  

请参阅的 MSDN

I am building a scheduled jobs controller - these jobs will call a Controller and an Action capturing the result. I would rather have all this happen on the backend and not involve http calls.

Its kind of like what happens with Unit testing - for instance:

var controller = new TestController();
var result = controller.Index("TestParameter") as ViewResult;

The issue is in this example the controller and action are not dynamic, does anyone know how to initialize a controller and call an action with the name of the controller and action as string paramater? Such as -

public ActionResult run(string controllerName, string actionName)
{
    var controller = new Controller(controllerName);
    var result = controller.action(actionName).("TestParameter") as ViewResult;
    return Content(result);
}

解决方案

Use the ControllerFactory along with the ActionDescriptor to dynamically execute the action:

public ActionResult Run(string controllerName, string actionName)
{
    // get the controller
    var ctrlFactory = ControllerBuilder.Current.GetControllerFactory();
    var ctrl = ctrlFactory.CreateController(this.Request.RequestContext, controllerName) as Controller;
    var ctrlContext = new ControllerContext(this.Request.RequestContext, ctrl);
    var ctrlDesc = new ReflectedControllerDescriptor(ctrl.GetType());

    // get the action
    var actionDesc = ctrlDesc.FindAction(ctrlContext, actionName);

    // execute
    var result = actionDesc.Execute(ctrlContext, new Dictionary<string, object>
    {
        { "parameterName", "TestParameter" }
    }) as ActionResult;

    // return the other action result as the current action result
    return result;
}

See MSDN

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