一、AOP 封装

// 在 Program.cs 配置 builder.AddAOPExt();

//自定义 AOP 扩展
public static class CustomAOPExt
{
    public static void AddAOPExt(this WebApplicationBuilder builder)
    {
        
        builder.Host
            .UseServiceProviderFactory(new AutofacServiceProviderFactory())  // 工厂替换，把Autofac整合进来
            .ConfigureContainer<ContainerBuilder>(containerBuilder =>
            {
                // 依赖注入
                containerBuilder.RegisterType<CustomInterceptor>(); 
                containerBuilder.RegisterType<Student>().As<IStudent>().EnableClassInterceptors(); // 开启类拦截器 
                // containerBuilder.RegisterType<Student>().As<IStudent>().EnableInterfaceInterceptors(); // 开启接口拦截器
            });
    }
}

二、类拦截案例

创建 Student 和 IStudent 测试类和接口

using Autofac.Extras.DynamicProxy;

namespace LOG.Test;


public interface IStudent
{
    void Method_A(string name);
    
    void Method_B(string name);
    
    void Method_C(string name);
}


[Intercept(typeof(CustomInterceptor))]
public class Student : IStudent
{
    public void Method_A(string name)
    {
        Console.WriteLine("Method_A" + name);
    }

    public virtual void Method_B(string name)
    {
        Console.WriteLine("Method_B" + name);
    }

    public void Method_C(string name)
    {
        Console.WriteLine("Method_C" + name);
    }
}

创建 -- CustomInterceptor (自定义拦截器)

using Castle.DynamicProxy;

namespace LOG.Test;

/// <summary>
/// 自定义 方法拦截器
/// </summary>
public class CustomInterceptor : IInterceptor
{
    public void Intercept(IInvocation invocation)
    {
        Console.WriteLine($"----Before--{invocation.Method.Name}-------");
        invocation.Proceed();
        Console.WriteLine($"----After---{invocation.Method.Name}-------");
    }
}

创建 -- 控制器 -- 测试

三、接口拦截器案例

开启接口拦截器

// 在 Program.cs 配置 builder.AddAOPExt();

//自定义 AOP 扩展
public static class CustomAOPExt
{
    public static void AddAOPExt(this WebApplicationBuilder builder)
    {
        
        builder.Host
            .UseServiceProviderFactory(new AutofacServiceProviderFactory())  // 工厂替换，把Autofac整合进来
            .ConfigureContainer<ContainerBuilder>(containerBuilder =>
            {
                // 依赖注入
                containerBuilder.RegisterType<CustomInterceptor>(); 
                // containerBuilder.RegisterType<Student>().As<IStudent>().EnableClassInterceptors(); // 开启类拦截器 
                containerBuilder.RegisterType<Student>().As<IStudent>().EnableInterfaceInterceptors(); // 开启接口拦截器
            });
    }
}

标识接口

using Autofac.Extras.DynamicProxy;

namespace LOG.Test;


[Intercept(typeof(CustomInterceptor))]
public interface IStudent
{
    void Method_A(string name);
    
    void Method_B(string name);
    
    void Method_C(string name);
}


public class Student : IStudent
{
    public void Method_A(string name)
    {
        Console.WriteLine("Method_A" + name);
    }

    public virtual void Method_B(string name)
    {
        Console.WriteLine("Method_B" + name);
    }

    public void Method_C(string name)
    {
        Console.WriteLine("Method_C" + name);
    }
}

创建 -- CustomInterceptor (自定义拦截器)

using Castle.DynamicProxy;

namespace LOG.Test;

/// <summary>
/// 自定义 方法拦截器
/// </summary>
public class CustomInterceptor : IInterceptor
{
    public void Intercept(IInvocation invocation)
    {
        Console.WriteLine($"----Before--{invocation.Method.Name}-------");
        invocation.Proceed();
        Console.WriteLine($"----After---{invocation.Method.Name}-------");
    }
}

创建 -- 控制器