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("");
         }
     }

     public sealed class MyInterceptionBehavior : IInterceptionBehavior
     {
         #region IInterceptionBehavior Members

         public Boolean WillExecute
         {
             get { return true; }
         }

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

         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());