Question

我正在尝试使用EntLib Logging构建我们的日志框架，并使用use属性来指示应记录哪个类/方法。所以我认为拦截将是一个不错的选择。我是Ninject和Interception的超级菜鸟，我正在Innovatian Software关注如何通过属性使用拦截的教程。但是当我运行应用程序时，从未调用过BeforeInvoke和AfterInvoke。请帮助，谢谢！

using System;

using System.Diagnostics;

using System.Collections.Generic;

using Castle.Core;

using Ninject;

using Ninject.Extensions.Interception;

using Ninject.Extensions.Interception.Attributes;

using Ninject.Extensions.Interception.Request;

    class Program
    {
        static void Main(string[] args)
        {
            var kernel = new StandardKernel();
            kernel.Bind<ObjectWithMethodInterceptor>().ToSelf(); 

            var test= kernel.Get<ObjectWithMethodInterceptor>();
            test.Foo();
            test.Bar();
            Console.ReadLine();
        }
    }

    public class TraceLogAttribute : InterceptAttribute
    {
        public override IInterceptor CreateInterceptor(IProxyRequest request)
        {
            return request.Context.Kernel.Get<TimingInterceptor>();
        }
    }

    public class TimingInterceptor : SimpleInterceptor
    {
        readonly Stopwatch _stopwatch = new Stopwatch();
        protected override void BeforeInvoke(IInvocation invocation)
        {
            Console.WriteLine("Before Invoke");
            _stopwatch.Start();
        }
        protected override void AfterInvoke(IInvocation invocation)
        {
            Console.WriteLine("After Invoke");
            _stopwatch.Stop();
            string message = string.Format("Execution of {0} took {1}.",
                                            invocation.Request.Method,
                                            _stopwatch.Elapsed);
            Console.WriteLine(message);
            _stopwatch.Reset();
        }
    }

    public class ObjectWithMethodInterceptor
    {
        [TraceLog] // intercepted
        public virtual void Foo()
        {
            Console.WriteLine("Foo - User Code");
        }
        // not intercepted
        public virtual void Bar()
        {
            Console.WriteLine("Bar - User Code");
        }
    }

Answer 1

我想通了，我错过了我要禁用自动模块加载并手动将DynamicProxy2Module加载到内核的部分。这是对代码的更改：

 //var kernel = new StandardKernel(); //Automatic Module Loading doesn't work
 var kernel = new StandardKernel(new NinjectSettings() { LoadExtensions = false }, new DynamicProxy2Module());

希望这有助于其他人。

无法通过属性获取Ninject-Interception工作，我做错了什么？

1 个答案: