通过unget 安装Castle.Windsor

using Castle.DynamicProxy;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AOP_Demo
{
	public class MyInterceptor : IInterceptor
	{

		public void Intercept(IInvocation invocation)
		{
			PreProceed(invocation);
			//如果是通过实现类创建的代理，才可以执行下面，也就是调用方法
			//invocation.Proceed();
			Console.WriteLine(invocation.Method.Name);
			PostProceed(invocation);
			//invocation.ReturnValue 给调用方法返回的值
			//invocation.Arguments 传进来的参数
		}
		public void PreProceed(IInvocation invocation)
		{
			Console.WriteLine("方法执行前");
		}

		public void PostProceed(IInvocation invocation)
		{
			Console.WriteLine("方法执行后");
		}
	}

	public class User
	{

		public string Name { get; set; }

		public string PassWord { get; set; }

	}
	public interface IUserProcessor
	{
		void RegUser(User user);
	}

	public class UserProcessor : IUserProcessor
	{
		public virtual void RegUser(User user)
		{
			Console.WriteLine("用户已注册。Name:{0},PassWord:{1}", user.Name, user.PassWord);
		}
	}
}

using Castle.DynamicProxy;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AOP_Demo
{
	class Program
	{
		static void Main(string[] args)
		{

			ProxyGenerator generator = new ProxyGenerator();
			MyInterceptor interceptor = new MyInterceptor();
			//通过实现类创建代理
			//UserProcessor userprocessor = generator.CreateClassProxy<UserProcessor>(interceptor);
			//通过接口 创建代理 自动生成实现接口类（操作il代码 .net emit）
			IUserProcessor userProcessor = generator.CreateInterfaceProxyWithoutTarget<IUserProcessor>(interceptor);

			User user = new User() { Name = "lee", PassWord = "123123123123" };
			userProcessor.RegUser(user);
			Console.ReadKey();
		}
	}
}