IOC容器特性注入第七篇：请求上下文作用域

public sealed class OnePerRequestHttpModule : GlobalKernelRegistration, IHttpModule {

        public OnePerRequestHttpModule() {
            this.ReleaseScopeAtRequestEnd = true;
        }

        /// <summary>
        /// 把当前实例从HTTP上下文给清空 只保存HTTP请求作用域
        /// </summary>
        public void DeactivateInstancesForCurrentHttpRequest() {
            if (this.ReleaseScopeAtRequestEnd) {
                HttpContext context = HttpContext.Current;
                base.MapKernels((IKernel kernel)=>{
                    kernel.Components.Get<ICache>().Clear(context);
                });
            }
        }

        public void Dispose() {
        }
        public void Init(HttpApplication application) {
            application.EndRequest += (object o, EventArgs e)=> {
                this.DeactivateInstancesForCurrentHttpRequest();
            };
        }

        public bool ReleaseScopeAtRequestEnd { get; set; }

    }

//把请求周期注册到模块中
[assembly: System.Web.PreApplicationStartMethod(typeof(DaHua.Common.Runtime.Dependency.Ninject.NinjectWebCommonStartupTask), "Start")]
namespace DaHua.Common.Runtime.Dependency.Ninject {
    public static class NinjectWebCommonStartupTask {
        public static void Start() {
        DynamicModuleUtility.RegisterModule(typeof(OnePerRequestHttpModule));
        }
    }
}