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标题: ASP.NET Core 6.0 Filter 生命周期 [打印本页]

作者: 美丽的神话 时间: 2024-7-28 07:04
标题: ASP.NET Core 6.0 Filter 生命周期
Filter生命周期

在 FourthController 控制器新建 Index5 方法，在对应的过滤器中设置断点。

[Authorize(AuthenticationSchemes = CookieAuthenticationDefaults.AuthenticationScheme, Policy = "rolePolicy")]
[CustomCacheResourceFilter]
[TypeFilter(typeof(CustomLogActionFilterAttribute))]
[TypeFilter(typeof(CustomResultFilterAttribute))]
[TypeFilter(typeof(CustomAlwaysRunResultFilterAttribute))]
[TypeFilter(typeof(CustomExceptionFilterAttribute))]
public IActionResult Index5()
{
return View();
}

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参考之前关于过滤器的文章：
https://blog.csdn.net/nmmking/article/details/139025585

https://blog.csdn.net/nmmking/article/details/139025585https://blog.csdn.net/nmmking/article/details/139021374

https://blog.csdn.net/nmmking/article/details/139021374https://blog.csdn.net/nmmking/article/details/139023237

https://blog.csdn.net/nmmking/article/details/139023237https://blog.csdn.net/nmmking/article/details/138615697

https://blog.csdn.net/nmmking/article/details/138615697分别把6个Filter全部注册到某一个方法，访问 FourthController 的 Index5 ：

a.验证权限，进入到Authorization
b.ResourceFilter 中的--OnResourceExecuting
c.开始创建控制器实例
d.ActionFilter 中的--OnActionExecutinge.实验Action方法
f.ActionFilter 中的--OnActionExecuted
g.ResultFilter 中的--OnResultExecuting
h.AlwaysRunResultFilter 中的-OnResultExecuting
i.渲染视图
j.AlwaysRunResultFilter 中的OnResultExecuted
k.ResultFilter 中的--OnResultExecuted
L.ResourceFilter中的--OnResourceExecuted

多个相同的Filter不同注册效果

分别定义三个Filter采用全局注册、控制器注册、Action注册。

public class CustomActionActionFilterAttribute : ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext context)
{
Console.WriteLine("CustomControllerActionFilterAttribute.OnActionExecuting");
}
public override void OnActionExecuted(ActionExecutedContext context)
{
Console.WriteLine("CustomControllerActionFilterAttribute.OnActionExecuted");
}
}

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public class CustomControllerActionFilterAttribute : ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext context)
{
Console.WriteLine("CustomControllerActionFilterAttribute.OnActionExecuting");
}
public override void OnActionExecuted(ActionExecutedContext context)
{
Console.WriteLine("CustomControllerActionFilterAttribute.OnActionExecuted");
}
}

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public class CustomGlobalActionFilterAttribute : ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext context)
{
Console.WriteLine("CustomGlobalActionFilterAttribute.OnActionExecuting");
}
public override void OnActionExecuted(ActionExecutedContext context)
{
Console.WriteLine("CustomGlobalActionFilterAttribute.OnActionExecuted");
}
}

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以下就是默认实验序次：

1.全局---开始
2.控制器----开始
3.Action上---开始
4.Action被实验
5.Action上---结束
6.控制器----结束了
7.全局结束

可以通过Order 来控制实验序次，Order的值越小，就越先实验：
[CustomControllerActionFilterAttribute(Order =20)]
[CustomActionActionFilterAttribute(Order =-99)]

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