ASP.NET 添加Ninject依赖注入

依赖注入的简单介绍

依赖注入不是目的，它是一系列工具和手段，最终的目的是帮助我们开发出松散耦合(loose coupled)、可维护、可测试的代码和程序。这条原则的做法是大家熟知的面向接口，或者说是面向抽象编程。

依赖注入的具体实例

1.在Nuget添加Ninject

2.在Global中添加注入

            DependencyResolver.SetResolver(new NinjectDependencyResolver());// 注册Ninject依赖注入容器

3.添加注入类NinjectDependencyResolver

  public class NinjectDependencyResolver : IDependencyResolver
    {
        private IKernel kernel; //容器引擎
        public NinjectDependencyResolver()
        {
            kernel = new StandardKernel();
            kernel.Settings.InjectNonPublic = true; // 非public属性注入
            AddBindings();
        }

        private void AddBindings()
        {
            this.kernel.Bind<IClassRepository>().To<ClassRepository>();
            this.kernel.Bind<IUserRepository>().To<UserRepository>();
        }

        #region IDependencyResolver Members
        public object GetService(Type serviceType)
        {
            return kernel.TryGet(serviceType);
        }

        public IEnumerable<object> GetServices(Type serviceType)
        {
            return kernel.GetAll(serviceType);
        }
        #endregion
    }

4.在basecontroller里面添加注入

  #region inject依赖注入
        [Inject]
        protected IClassRepository ClassRepository { get; set; }
        [Inject]

        protected IUserRepository UserRepository { get; set; }
        #endregion

5.在具体的controller调用即可