根据这篇文章描述
custom-membership-provider-with-repository-injection
我实现自定义成员资格提供注入.
定制会员提供商
using Ninject;
public class CustomMembershipProvider : MembershipProvider
{
[Inject]
public IUserRepository UserRepository { get; set; }
[...]
自定义角色提供者
using Ninject;
public class CustomRoleProvider : RoleProvider
{
[Inject]
public IUserRoleRepository UserRoleRepository { get; set; }
[...]
在Web.Config中
<membership defaultProvider="CustomsMembershipProvider">
<providers>
<clear/>
<add name="CustomsMembershipProvider" type="namespace.CustomsMembershipProvider"/>
</providers>
</membership>
<roleManager enabled="true" defaultProvider="customRoleProvider">
<providers>
<clear/>
<add name="customRoleProvider" type="namespace.customRoleProvider"/>
</providers>
</roleManager>
现在在NinjectWebCommon中
private static IKernel CreateKernel()
{
var kernel = new StandardKernel();
kernel.Bind<Func<IKernel>>().ToMethod(ctx => () => new Bootstrapper().Kernel);
kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>();
RegisterServices(kernel);
return kernel;
}
private static void RegisterServices(IKernel kernel)
{
[...]
kernel.Bind<IUserRepository>().To<UserRepository>();
kernel.Bind<IUserRoleRepository>().To<UserRoleRepository>();
// Inject user & role repository into our custom membership & role providers.
kernel.Inject(Membership.Provider);
kernel.Inject(Roles.Provider);
}
当我运行应用程序时,我收到错误
This method cannot be called during the application’s pre-start
initialization stage.
来自kernel.Inject(Membership.Provider);这条线
但是如果我将内核设置放在Application_Start中
我得到了吼叫错误
Error activating IUserRepository No matching bindings are available,
and the type is not self-bindable. Activation path: 2) Injection of
dependency IUserRepository into property UserRepository of type
CustomMembershipProvider 1) Request for CustomeMembershipProvider
怎么解决这个问题. ??
解决方法
我在尝试这个时遇到了很多麻烦,最后添加了一个让我获得存储库的方法
using System.Web.Mvc; //Used to access dependency resolver
private IUserRepository GetUserRepository()
{
return DependencyResolver.Current.GetService<IUserRepository>();
}
我能够使用构造函数注入来获取注入库,但是一旦我去使用存储库,对象就被处理掉了.我发现上面是最简单的选择.
但是,我猜你也可以使用Initialize()方法
IUserRepository userRepository;
public override void Initialize(string name,NameValueCollection config)
{
base.Initialize(name,config);
this.userRepository = DependencyResolver.Current.GetService<IUserRepository>();
}
或者另一种方式是使用财产
public IUserRepository UserRepository
{
get
{
return DependencyResolver.Current.GetService<IUserRepository>();
}
}
