代码已托管在 https://code.csdn.net/denghao156/ktnmb_mvc4
先上图，设计模式参考：ddmvc4.codeplex.com
一、unintofwork 设计模式 http://www.cnblogs.com/zxj159/p/3505457.html
Unit Of Work模式会记录所有对象模型修改过的信息，在提交的时候，一次性修改，并把结果同步到数据库。 这个过程通常被封装在事务中。所以在DAL中采用Unit Of Work模式好处就在于能够确保数据的完整性，如果在持有一系列业务对象（同属于一个事务）的过程中出现问题，就可以将所有的修改回滚，以确保数据始终处于有效状态，不会出现脏数据。
1.1：Kt.DAL.UnitOfWork
UnitOfWork 继承 DbContext 实现对实体模型的增删改查，通过base.SaveChanges() 来实现数据的更新，从而把缓存区的上下文更改的数据一次提交到数据来实现事务。
public UnitOfWork()
: base("name=EntitiesDb")
{
this.Configuration.ProxyCreationEnabled = true;
this.Configuration.LazyLoadingEnabled = true;
} public void Commit()
{
base.SaveChanges();
} public void CommitAndRefreshChanges()
{
bool saveFailed = false; do
{
try
{
base.SaveChanges(); saveFailed = false; }
catch (DbUpdateConcurrencyException ex)
{
saveFailed = true; ex.Entries.ToList()
.ForEach(entry =>
{
entry.OriginalValues.SetValues(entry.GetDatabaseValues());
}); }
} while (saveFailed); } public void RollbackChanges()
{
base.ChangeTracker.Entries()
.ToList()
.ForEach(entry => entry.State = EntityState.Unchanged);
}
1.2: Kt.DAL
基础仓储类对UnitOfWork 的引用来实现多个表实体的统一操作。
public class Repository<T> : IRepository<T>
where T : class
{
#region Members IQueryableUnitOfWork _UnitOfWork; #endregion #region Constructor /// <summary>
/// 创建仓储实例
/// </summary>
/// <param name="unitOfWork">Associated Unit Of Work</param>
public Repository(IQueryableUnitOfWork unitOfWork)
{
if (unitOfWork == (IUnitOfWork)null)
throw new ArgumentNullException("unitOfWork"); _UnitOfWork = unitOfWork;
}
1.3:Kt.Respository
User 表仓储类。
public class UserRepository : Repository<User>, IUserRepository
{
public UserRepository(UnitOfWork unitOfWork)
: base(unitOfWork)
{ }
}
1.4:Kt.Service
User 表类的业务层的实现
public class UserService : IUserService
{
private readonly IUserRepository _userRepository;
public UserService(IUserRepository userRepository)
{
this._userRepository = userRepository;
} public UserDto GetUserById(int id)
{
return KtMapper.CreateMap<User, UserDto>(_userRepository.Get(id));
} public void AddUser(UserDto userDto)
{
User user = KtMapper.CreateMap<UserDto, User>(userDto);
_userRepository.Add(user);
_userRepository.UnitOfWork.Commit();
}
二、Castle Windsor DI MVC控制器依赖注入
1.1、Kt.Web
创建注入工厂
/// <summary>
/// 依赖注入工厂
/// </summary>
public class WindsorControllerFactory : DefaultControllerFactory
{
private readonly IKernel kernel; public WindsorControllerFactory(IKernel kernel)
{
this.kernel = kernel;
} public override void ReleaseController(IController controller)
{
kernel.ReleaseComponent(controller);
} protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
{
if (controllerType == null)
{
throw new HttpException(, string.Format("The controller for path '{0}' could not be found.", requestContext.HttpContext.Request.Path));
}
return (IController)kernel.Resolve(controllerType);
}
}
1.2、 Dependency 注入容器
public void Install(IWindsorContainer container, IConfigurationStore store)
{
container.Register(Classes.FromThisAssembly()
.BasedOn<IController>()
.LifestyleTransient()); container.Register( Component.For<IQueryableUnitOfWork, UnitOfWork>().ImplementedBy<UnitOfWork>(), Component.For<IUserRepository, UserRepository>().ImplementedBy<UserRepository>(), Component.For<IUserService>().ImplementedBy<UserService>(), AllTypes.FromThisAssembly().BasedOn<IHttpController>().LifestyleTransient() )
.AddFacility<LoggingFacility>(f => f.UseLog4Net()); LoggerFactory.SetCurrent(new TraceSourceLogFactory());
EntityValidatorFactory.SetCurrent(new DataAnnotationsEntityValidatorFactory());
}
1.3、MvcApplication 应用程序启动时控制器的依赖注入容器的实现
public class MvcApplication : System.Web.HttpApplication
{
private readonly IWindsorContainer container; public MvcApplication()
{
this.container =
new WindsorContainer().Install(new Dependency.Dependency());
} public override void Dispose()
{
this.container.Dispose();
base.Dispose();
}
protected void Application_Start()
{ AreaRegistration.RegisterAllAreas(); WebApiConfig.Register(GlobalConfiguration.Configuration);
FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
RouteConfig.RegisterRoutes(RouteTable.Routes);
BundleConfig.RegisterBundles(BundleTable.Bundles); var controllerFactory = new WindsorControllerFactory(container.Kernel);
ControllerBuilder.Current.SetControllerFactory(controllerFactory);
}
}
具体代码的实现见框架源代码：https://code.csdn.net/denghao156/ktnmb_mvc4
预计用的工具有：
- Visual Studio 2012
- ASP.NET MVC 4 with Razor View Engine
- Entity Framework 5.0
- Castle Windsor for DI
- SQL Server 2008/2012
- bootstrapt & JQuery
- automapper
本节参见大神所写，日后想自己做一个商城出来，代码持续更新到 code.csdn.net ……