spring.net aop 讲解

spring.net aop几个术语：

切面：针对类

切点：针对方法

object.xml

<?xml version="1.0" encoding="utf-8" ?>
<objects xmlns="http://www.springframework.net" xmlns:aop="http://www.springframework.net/aop">

    <object id="user" type="TestAop.User" ></object>

    <object id="newUser" type="TestAop.NewUser" ></object>

    <object id="advisor" type="TestAop.Advisor"></object>
    
    <aop:config>
        <aop:advisor pointcut-ref="pointcut" advice-ref="advisor"/>
    </aop:config>

    <object id="pointcut" type="Spring.Aop.Support.SdkRegularExpressionMethodPointcut, Spring.Aop">
        <property name="pattern" value="TestAop.User.Whoami"/>
    </object>
</objects>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TestAop
{
    public class Advisor : AopAlliance.Intercept.IMethodInterceptor
    {
        
        public object Invoke(AopAlliance.Intercept.IMethodInvocation invocation)
        {
            NewUser newUser = new NewUser();
            newUser.BeforeWhoami();
            var result = invocation.Proceed();
            newUser.AfterWhoami();
            return result;
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TestAop
{
    public class NewUser
    {
        public void BeforeWhoami()
        {
            Console.WriteLine("I am before");
        }

        public void AfterWhoami()
        {
            Console.WriteLine("I am after");
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TestAop
{

    public interface  IUser
    {
        void Whoami();
    }
    public class User:IUser
    {
        public void Whoami()
        {
            Console.WriteLine("I am zhangwei");
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TestAop
{
    class Program
    {
        static void Main(string[] args)
        {
            Spring.Context.IApplicationContext context
               = new Spring.Context.Support.XmlApplicationContext("objects.xml");
            IUser user = context.GetObject("user") as IUser;
            user.Whoami();
            Console.ReadKey();
        }
    }
}

运行：