一、AOP 封装

二、类拦截案例

三、接口拦截器案例

AOP拦截器可开启 类拦截器 和 接口拦截器
类拦截器 --- 只有方法标注 virtual 标识才会启动
接口拦截器 --- 所有实现接口的方法都会启动

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