Type Interceptors
, part of , provides a method interception framework called “DynamicProxy.”
The Autofac.Extras.DynamicProxy
integration package enables method calls on Autofac components to be intercepted by other components. Common use-cases are transaction handling, logging, and declarative security. You can use Autofac.Extras.DynamicProxy2
for Autofac versions up to 4.0.0
builder.RegisterType<AdminWebProxyObject>().As<IAdminWebContract>().InstancePerLifetimeScope().EnableInterfaceInterceptors().InterceptedBy(typeof(BoAuditTraceInterceptor));
关于循环引用的问题
手动new的接口的实现类的实例,然后调用方法,不会触发intercept
假设有接口IA和一个IInterceptor的实现ChuckIntercept。
IA的实现通过autofac进行解析,在一个静态类B中。
interface IA
{
string GetConnectionString();
}
class A : IA
{
}
class B
{
public static IA InstanceA; //autofac负责resolve
}
ChuckIntercept : IIntercept
{
//如果在这里需要用到A里面的GetConnectionString方法
只能自己在这边new一个A的实例,不可以使用autofac的解析,否则会循环触发intercept方法
}