Filter 过滤器

Posted 2022-12-12 nene22----

用于 MVC

在MVC的请求管道里面添加逻辑

之前 ，之后

Cross- cutting concerns

 

常用场景

授权

https

日志

 

 fileter ：种类，授权，资源，action，异常，result

自定义fileter

 

 

    public class LogAsyncResourceFilter:Attribute,IAsyncResourceFilter
    
        public async Task OnResourceExecutionAsync(ResourceExecutingContext context, ResourceExecutionDelegate next)
        
            Console.WriteLine("Executing Resource Filter!");
            var executedContext = await next();
            Console.WriteLine("Executed Resource Filter!");
        
    

　　使用 

[LogAsyncResourceFilter]

 

全局 

services.AddMvc(options =>  
options.Filters.Add(new LogAsyncResourceFilter());
);

　　

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