Question

我正在遵循这个Contoso University MVC NTier University架构。但我不知道如何将其设置为多个数据库上下文。在我的MVC应用程序中，我有两个我经常访问的数据库。

Project.Common（这里放置了像IUnitOfWork，IRepository这样的通用基础设施）
Project.Data
Project.Models
Project.Service
Project2.Data
Project2.Models
Project2.Service
Project.Web

当我在Global.asax中使用UnityContainer时。我注册了两个Dbfactory和Uow，如：

IUnityContainer oContainer = new UnityContainer()
// ***** PROJECT *****
 .RegisterType<IProjectDBFactory, ProjectDBFactory>(new HttpContextLifetimeManager<IProjectDBFactory>())
 .RegisterType<IUnitOfWork, ProjectUow>(new HttpContextLifetimeManager<IUnitOfWork>())
 .RegisterType<IRepoPRJTABLE, RepoPRJTABLE>(new HttpContextLifetimeManager<IRepoPRJTABLE>())
 .RegisterType<IServiceRepository<PRJTABLE>, ServicePRJTABLE>(new HttpContextLifetimeManager<IServiceRepository<PRJTABLE>>())

 // ***** PROJECT2 *****
 .RegisterType<IProject2DBFactory, Project2WebDBFactory>(new HttpContextLifetimeManager<IProject2DBFactory>())
 .RegisterType<IUnitOfWork, Project2Uow>(new HttpContextLifetimeManager<IUnitOfWork>())
 .RegisterType<IRepoPRJ2TABLE, RepoPRJ2TABLE>(new HttpContextLifetimeManager<IRepoPRJ2TABLE>())
 .RegisterType<IServiceRepository<PRJ2TABLE>, ServicePRJ2TABLE>(new HttpContextLifetimeManager<IServiceRepository<PRJ2TABLE>>())

我可以完美地查看数据。但是当我查看ServicePRJ时，它的Unitofwork上下文是针对PROJECT2的。请帮助我...我想我需要将上下文传递给单元，但我很难构建我的代码。我是使用这种架构的新编码，使用unitycontainer的新功能，mvc中的新功能。请帮我。

Answer 1

您对项目2的第二次 IUnitOfWork 注册将覆盖容器中的第一次注册。您需要为相应的项目创建特定的工作单元接口。

interface IProjectUnitOfWork : IUnitOfWork {}
interface IProject2UnitOfWork : IUnitOfWork {}
....
IUnityContainer oContainer = new UnityContainer()
// ***** PROJECT *****
 .RegisterType<IProjectDBFactory, ProjectDBFactory>(new HttpContextLifetimeManager<IProjectDBFactory>())
 .RegisterType<IProjectUnitOfWork, ProjectUow>(new HttpContextLifetimeManager<IProjectUnitOfWork >())
 .RegisterType<IRepoPRJTABLE, RepoPRJTABLE>(new HttpContextLifetimeManager<IRepoPRJTABLE>())
 .RegisterType<IServiceRepository<PRJTABLE>, ServicePRJTABLE>(new HttpContextLifetimeManager<IServiceRepository<PRJTABLE>>())

 // ***** PROJECT2 *****
 .RegisterType<IProject2DBFactory, Project2WebDBFactory>(new HttpContextLifetimeManager<IProject2DBFactory>())
 .RegisterType<IProject2UnitOfWork, Project2Uow>(new HttpContextLifetimeManager<IProject2UnitOfWork >())
 .RegisterType<IRepoPRJ2TABLE, RepoPRJ2TABLE>(new HttpContextLifetimeManager<IRepoPRJ2TABLE>())
 .RegisterType<IServiceRepository<PRJ2TABLE>, ServicePRJ2TABLE>(new HttpContextLifetimeManager<IServiceRepository<PRJ2TABLE>>())

多数据库上下文

1 个答案: