AsyncController中的动作继承

Question

我有一个基本的AsyncController

BaseController : AsyncController
{ 
    [Authorize("Admin")]
    public virtual async Task<ActionResult> SomeMethod()
    {
        //code
    }
}

如何正确继承和重写SomeMethod

UserController : BaseController
{ 
    [Authorize("User")]
    public override Task<ActionResult> SomeMethod()
    {
        return base.SomeMethod()
    }
}

或

UserController : BaseController
{ 
    [Authorize("User")]
    public override async Task<ActionResult> SomeMethod()
    {
        return await base.SomeMethod()
    }
}

抱歉，我的英语

Answer 1

SomeMethod()是在BaseController类中定义的。因此，子类应该继承BaseController而不是AsyncController。若要重写该方法，只需在定义中添加virtual关键字即可。

BaseController : AsyncController
{ 
    [Authorize("Admin")]
    public virtual async Task<ActionResult> SomeMethod()
    {
        //code
    }
}

继承和覆盖

UserController : BaseController
{ 
    [Authorize("User")]
    public override Task<ActionResult> SomeMethod()
    {
        return base.SomeMethod()
    }
}

此外，我在Authorize属性中注意到了一些奇怪的东西。如果基方法只允许管理，而子方法只允许用户使用，那么您很可能最终无法从子类执行基方法。