C# unity 的 IInterceptionBehavior实现aop拦截器

以前项目写过使用unity的 IInterceptionBehavior 实现aop拦截器，时间不多就忘了，项目找不到了，然后呢，写个简单的例子，用的收直接用就行了，简单实用，至于什么用，mvc的attribut属性用法差不多，写过滤器还可以的

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Unity;
using Unity.Interception;
using Unity.Interception.ContainerIntegration;
using Unity.Interception.InterceptionBehaviors;
using Unity.Interception.Interceptors.InstanceInterceptors.InterfaceInterception;
using Unity.Interception.PolicyInjection.Pipeline;

namespace AOP
{
    public interface IServiceProvider2
    {
        string GetServicetest();
        string GetServicetest2();
    }
    public class MyObject2 : IServiceProvider2
    {

        public string GetServicetest()
        {
            return "sttt";
        }
        public string GetServicetest2()
        {
            throw new Exception("9999999999999999999");
        }
    }

    public sealed class MyInterceptionBehavior : IInterceptionBehavior
    {
        #region IInterceptionBehavior Members

        public Boolean WillExecute
        {
            get { return true; }
        }

        public IEnumerable<Type> GetRequiredInterfaces()
        {
            return new Type[0];
        }

        public IMethodReturn Invoke(IMethodInvocation input, GetNextInterceptionBehaviorDelegate getNext)
        {
            return getNext()(input, getNext);
        }

        #endregion

    
    }


   public class Test
    {
        public void test()
        {
            IUnityContainer unityContainer = new UnityContainer();

            unityContainer.AddNewExtension<Interception>();
            unityContainer.RegisterType<IServiceProvider2, MyObject2>("MyObject2",
            new Interceptor<InterfaceInterceptor>(),
            new InterceptionBehavior<MyInterceptionBehavior>()
            );

            IServiceProvider2 myObject = unityContainer.Resolve<IServiceProvider2>("MyObject2");
            myObject.GetServicetest();
            myObject.GetServicetest2();

        }
    }



   
}

main 方法里调用一下就可以了

Test t = new Test();
t.test();

至于原理，那肯定用到动态代理了，至于动态代理，怎么实现的，我不太会

 动态代理这个样子：
 var generator = new ProxyGenerator();
 var animal = generator.CreateClassProxy<Animal>(new AnimalInterceptor());