4
可能重复:
MVC3 + Ninject - How to?使用Ninject DI两个API和MVC4 “常规” 控制器
在一个小型MVC 4项目,我想使用来实现依赖注入ninject。到目前为止,我已经使用api控制器,但我对常规控制器没有任何好运。
我有一个NinjectResolver:
public class NinjectDependencyResolver : NinjectDependencyScope, IDependencyResolver
{
private readonly IKernel _kernel;
public NinjectDependencyResolver(IKernel kernel)
: base(kernel)
{
_kernel = kernel;
}
public IDependencyScope BeginScope()
{
return new NinjectDependencyScope(_kernel.BeginBlock());
}
public override void Dispose()
{
_kernel.Dispose();
}
}
并有NinjectScope:
public class NinjectDependencyScope : IDependencyScope
{
protected IResolutionRoot ResolutionRoot;
public NinjectDependencyScope(IResolutionRoot kernel)
{
ResolutionRoot = kernel;
}
public object GetService(Type serviceType)
{
var request = ResolutionRoot.CreateRequest(serviceType, null, new Parameter[0], true, true);
return ResolutionRoot.Resolve(request).SingleOrDefault();
}
public IEnumerable<object> GetServices(Type serviceType)
{
var request = ResolutionRoot.CreateRequest(serviceType, null, new Parameter[0], true, true);
return ResolutionRoot.Resolve(request).ToList();
}
public void Dispose()
{
var disposable = (IDisposable)ResolutionRoot;
if (disposable != null) disposable.Dispose();
ResolutionRoot = null;
}
}
然后,我把它架在我的Global.asax:
var kernel = new StandardKernel();
kernel.Bind(typeof(IRepository)).To(typeof(Repository));
GlobalConfiguration.Configuration.DependencyResolver = new NinjectDependencyResolver(kernel);
然后我注入库到像这样的api控制器:
private IRepository _repository;
public TestApiController(IRepository repository)
{
_repository = repository;
}
这可以正常工作,但在常规控制器中执行相同操作会失败 “没有为此对象定义无参数构造函数”错误。
任何想法?
1.如果这是该类的整个实现,为什么你要将'kernel'存储在一个字段? 2.你不能让基类实现两个接口吗? – MEMark