像这样使用 StructureMap 可以吗? ASP.NET MVC 3
我怀疑我没有使用使用结构图的最佳实践。
一切工作正常,但只是脑子里一片混乱。
我的代码看起来像这样。
global.asax
IContainer container = new Container(
x => {
x.For<IUserRepo>().Use<UserRepo>();
x.For<IPostRepo>().Use<PostRepo>(); // this is the soultion for the error
});
DependencyResolver.SetResolver(new StructureMapDependencyResolver(container));
PostController
private readonly IPostRepo _postRepo;
public PostController(IPostRepo postRepo)
{
this._postRepo = postRepo;
}
StructureMapDependencyResolver
public class StructureMapDependencyResolver : IDependencyResolver
{
private readonly IContainer _container;
public StructureMapDependencyResolver(IContainer container )
{
this._container = container;
}
public object GetService(Type serviceType)
{
object instance = _container.TryGetInstance(serviceType);
if(instance == null && !serviceType.IsAbstract)
{
_container.Configure(c => c.AddType(serviceType,serviceType));
instance = _container.TryGetInstance(serviceType);
}
return instance;
}
public IEnumerable<object> GetServices(Type serviceType)
{
return _container.GetAllInstances(serviceType).Cast<object>();
}
}
这里是 IPostRepo 看起来像
public interface IPostRepo
{
bool CreatePost(Post newPost);
List<Post> ShowAllPosts();
Post FindPostById(int postId);
Post EditPost(Post editPost);
UserPostCommentViewModel FindAllPostComments(int postId);
int? AddPlusOneToNumberOfViews(int postId);
}
谢谢马丁的帮助
i have a doubt that i am not using the best practice for using Structure-Map.
all working fine but just a confusion in mind.
my code look like this.
global.asax
IContainer container = new Container(
x => {
x.For<IUserRepo>().Use<UserRepo>();
x.For<IPostRepo>().Use<PostRepo>(); // this is the soultion for the error
});
DependencyResolver.SetResolver(new StructureMapDependencyResolver(container));
PostController
private readonly IPostRepo _postRepo;
public PostController(IPostRepo postRepo)
{
this._postRepo = postRepo;
}
StructureMapDependencyResolver
public class StructureMapDependencyResolver : IDependencyResolver
{
private readonly IContainer _container;
public StructureMapDependencyResolver(IContainer container )
{
this._container = container;
}
public object GetService(Type serviceType)
{
object instance = _container.TryGetInstance(serviceType);
if(instance == null && !serviceType.IsAbstract)
{
_container.Configure(c => c.AddType(serviceType,serviceType));
instance = _container.TryGetInstance(serviceType);
}
return instance;
}
public IEnumerable<object> GetServices(Type serviceType)
{
return _container.GetAllInstances(serviceType).Cast<object>();
}
}
here is the IPostRepo looks like
public interface IPostRepo
{
bool CreatePost(Post newPost);
List<Post> ShowAllPosts();
Post FindPostById(int postId);
Post EditPost(Post editPost);
UserPostCommentViewModel FindAllPostComments(int postId);
int? AddPlusOneToNumberOfViews(int postId);
}
thx martin for your help
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不。就像我在您的其他问题中所说的那样,取出控制器激活器......除非您将其用于特定目的(您似乎并非如此)。
另外,这一行是完全错误的:
您不应该为您的 UserRepo 使用
new
...这就是上面一行所关心的:如果您取出ControllerActivator,您应该有一个 MVC 应用程序的良好开端。
No. Like I said in your other question, take out the Controller Activator ... unless you are using it for a purpose (which it doesn't seem like you are).
Also, this line is plain WRONG:
You should not be using
new
for yourUserRepo
... that is what the line above is taking care of:If you take out the ControllerActivator, you should have a nice start to an MVC app.