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c#-以非通用方式绑定Ninject Factory Extension之后的异常

作者:互联网

我有以下代码:

public interface ILogging
{ ... }

public interface ILoggingFactory
{
  ILogging CreateLogging();
}

public class MailSender : IMailSender
{
  [Inject]
  public MailSender(ILoggingFactory loggingFactory)
  {
    ...
  }
}

当我尝试将工厂绑定为

Bind<ILoggingFactory>().ToFactory();

一切都很好.否则,当我以非通用方式尝试时

Bind(myType).ToFactory();

我收到一个InvalidCastException

Unable to cast object of type ‘Castle.Proxies.ObjectProxy’ to type
‘MyLibrary.ILoggingFactory’

尝试加载使用logginFactory的邮件发件人时:

kernel.Get<IMailSender>();

更新:

我正在使用反射的解决方法:

MethodInfo bindMethodInfo = GetType().GetMethods()
  .First(one => one.Name == "Bind" &&
  one.IsGenericMethod).MakeGenericMethod(mType);
var bindMethodResult = bindMethodInfo.Invoke(this, null);

MethodInfo toFactoryMethodInfo = typeof(Ninject.Extensions.Factory.BindToExtensions).GetMethods()
  .First(one => one.Name == "ToFactory" && one.IsPublic && one.IsGenericMethod &&   
  one.GetParameters().Count() == 1)
  .MakeGenericMethod(mType);

toFactoryMethodInfo.Invoke(bindMethodResult, new[] { bindMethodResult });      

评论:由于项目原因,我想以非通用方式绑定工厂.

解决方法:

如果您使用

Bind(myType).ToFactory();

Ninject为工厂类型Object而不是ILoggingFactory创建代理对象.您还必须指定工厂类型:

this.kernel.Bind(typeof(ILoggingFactory)).ToFactory(typeof(ILoggingFactory));

标签:dependency-injection,ninject,ninject-extensions,c
来源: https://codeday.me/bug/20191029/1960775.html