无法让 Ninject.Extensions.Interception 工作 [英] Can't get Ninject.Extensions.Interception working

问题描述

多年来我一直在努力弄清楚这是我们的.当我尝试将我的班级与拦截器绑定时，我在线上收到以下异常

I've been trying for ages to figure this our. when i try to bind my class with an interceptor i'm getting the following exception on the line

Kernel.Bind<MyClass>().ToSelf().Intercept().With<ILoggerAspect>();

加载 Ninject 组件 IAdviceFactory 时出错.内核的组件容器中尚未注册此类组件

我尝试过使用和不使用 LoadExtensions，大约使用模块来设置我的绑定，我最后一次尝试看起来像这样

I've tried with and without LoadExtensions, With about with using a Module to set up my bindings and my last attempt looks like this

internal class AppConfiguration 
{

    internal AppConfiguration( )
    {
        var settings = new NinjectSettings() { LoadExtensions = false };
        Kernel = new StandardKernel(settings);
        Load();
    }

    internal StandardKernel Kernel { get; set; }

    public static AppConfiguration Instance
    {
        get { return _instance ?? (_instance = new AppConfiguration()); }
    }

    private static AppConfiguration _instance;

    private void Load()
    {
        Kernel.Bind<ILoggerAspect>().To<Log4NetAspect>().InSingletonScope();
        Kernel.Bind<MyClass>().ToSelf().Intercept().With<ILoggerAspect>();
    }

    internal static StandardKernel Resolver()
    {
        return Instance.Kernel;
    }
}

我的记录器属性看起来像这样

My Logger Attribute looks like this

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

我的拦截器是这样的

 public class Log4NetAspect : SimpleInterceptor, ILoggerAspect
{
    protected override void BeforeInvoke(IInvocation invocation)
    {
        Debug.WriteLine("Running " + invocation.ReturnValue);
        base.BeforeInvoke(invocation);
    }

    public new void Intercept(IInvocation invocation)
    {
        try
        {
            base.Intercept(invocation);
        }
        catch (Exception e)
        {
            Debug.WriteLine("Exception: " + e.Message);
        }
    }

    protected override void AfterInvoke(IInvocation invocation)
    {
        Debug.WriteLine("After Method");
        base.AfterInvoke(invocation);
    }
}

推荐答案

很可能你没有部署 Ninject.Extensions.Interception.DynamicProxy 或 Ninject.Extensions.Interception.Linfu 与您的应用程序 [和 Ninject.Extensions.Interception] 一起.您必须选择其中之一.

Most likely you didn't deploy Ninject.Extensions.Interception.DynamicProxy or Ninject.Extensions.Interception.Linfu alongside your application [and Ninject.Extensions.Interception]. You have to pick exactly one of them.

使用您现在拥有的代码 (LoadExtensions=false) 它将无法获取特定的拦截库 - 您应该删除它，并且正常的扩展加载应该将扩展连接到为拦截位创建内核以获取它.

With the code as you have it right now (LoadExtensions=false) it will fail to pick up the specific interception library - you should remove that and the normal extensions loading should wire the extension into the Kernel on creation for the interception bits to pick it up.

这篇关于无法让 Ninject.Extensions.Interception 工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！