我没有使用IoC / DI,但我将来会重构我的代码,所以：

我的代码：

IUnitOfWork接口：

namespace MyApplication.Data.Interfaces
{
    public interface IUnitOfWork
   {
       void Save();
   }
}

DatabaseContext类：

namespace MyApplication.Data.Infra
{
    public class DatabaseContext : DbContext,IUnitOfWork
    {
        public DatabaseContext(): base("sqlDatabaseConnectionString")
        {
            Database.SetInitializer<DatabaseContext>(null);
        }
 
        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
            // Same code.
            base.OnModelCreating(modelBuilder);
        }
 
        #region Entities mapping
        public DbSet<User> User { get; set; }
        // >>> A lot of tables
        #endregion
 
        public void Save()
        {
            base.SaveChanges();
        }
    }
}

IGenericRepository接口：

namespace MyApplication.Data.Interfaces
{
    public interface IGenericRepository<T> where T : class
    {
        IQueryable<T> GetAll();
 
        IQueryable<T> Get(Expression<Func<T,bool>> predicate);
 
        T Find(params object[] keys);
 
        T GetFirstOrDefault(Expression<Func<T,bool>> predicate);
 
        bool Any(Expression<Func<T,bool>> predicate);
 
        void Insert(T entity);
 
        void Edit(T entity);
 
        void Delete(Expression<Func<T,bool>> predicate);
    }
}

GenericRepository类：

namespace MyApplication.Data.Repositories
{
    public class GenericRepository<T> : IDisposable,IGenericRepository<T> where T  : class
    {
        private DatabaseContext _context;
        private DbSet<T> _entity;
 
        public GenericRepository(IUnitOfWork unitOfWork)
        {
            if (unitOfWork == null)
                throw new ArgumentNullException("unitofwork");
 
            _context = unitOfWork as DatabaseContext;
            _entity = _context.Set<T>();
        }
 
        public IQueryable<T> GetAll()
        {
            return _entity;
        }
 
        public IQueryable<T> Get(Expression<Func<T,bool>> predicate)
        {
            return _entity.Where(predicate).AsQueryable();
        }
 
        // I delete some of the code to reduce the file size.
 
        #region Dispose
        public void Dispose()
        {
            // HERE IS MY FIRST DOUBT: MY METHOD ITS OK?!
            // I saw implementations with GC.Suppress... and dispose in destructor,etc.
 
            _context.Dispose();
        }
       #endregion
    }
}

IUserRepository接口：

namespace MyApplication.Data.Interfaces
{
    public interface IUserRepository : IGenericRepository<User> { }
}

UserRepository类：

namespace MyApplication.Data.Repositories
{
    public class UserRepository : GenericRepository<User>,IUserRepository,IDisposable
    {
        public UserRepository(IUnitOfWork unitOfWork) : base(unitOfWork) {}
    }
}

UserController控制器类：

namespace MyApplication.Presentation.MVCWeb.Controllers
{
    [Authorize]
    public class UserController : Controller
    {
        private IUserRepository _userRepository;
        private IProfileRepository _profileRepository;
        private IUnitOfWork _unitOfWork;
 
        public UserController()
        {
            this._unitOfWork = new DatabaseContext();
            this._userRepository = new UserRepository(_unitOfWork);
            this._profileRepository = new ProfileRepository(_unitOfWork);
        }
 
        public ActionResult List()
        {
            return View(this._userRepository.GetAll().ToList());
        }
 
        public ActionResult Create()
        {
            ViewBag.Profiles = new SelectList(this._profileRepository.GetAll().ToList(),"Id","Name");
 
            return View(new User());
        }
 
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Create([Bind(Exclude = "Id,Status,CompanyId")] User model)
        {
            ViewBag.Profiles = new SelectList(this._profileRepository.GetAll().ToList(),"Name");
 
            if (ModelState.IsValid)
            {
                model.EmpresaId = 1;
                model.Status = Status.Active;
 
                _userRepository.Insert(model);
                _unitOfWork.Save();
 
                return RedirectToAction("List");
            }
            else
            {
                return View();
            }
        }
    }

那么,我何时以及如何处置我的控制器和/或我的存储库和上下文？