Castle Windsor 使MVC Controller能够使用依赖注入

小咪咪 2021-12-18 14:53 124阅读 0赞

## 以在MVC中使用Castle Windsor为例 ##

1.第一步要想使我们的Controller能够使用依赖注入容器，先定义个WindsorControllerFactory类，

using System;
    using System.Web;
    using System.Web.Mvc;
    using System.Web.Routing;
    using Castle.MicroKernel;
    
    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(404, string.Format("The controller for path '{0}' could not be found.", requestContext.HttpContext.Request.Path));
            }
            return (IController)kernel.Resolve(controllerType);
        }
    }

2.在程序启动的时候添加如下代码

container = new WindsorContainer().Install(FromAssembly.This());
    var controllerFactory = new WindsorControllerFactory(container.Kernel);
    ControllerBuilder.Current.SetControllerFactory(controllerFactory);

前两步工作我理解为，把生成Controller实例的工作转交给了依赖注入容器的ControllerFactory以替代默认的ControllerFactory

3.将Controller注入到容器中，我们以Installer的方式注入

public class ControllersInstaller : IWindsorInstaller
    {
    public void Install(IWindsorContainer container, IConfigurationStore store)
    {
        container.Register(Classes.FromThisAssembly()
                               .BasedOn<IController>()
                               .LifestyleTransient());
    }
    }

4.在程序启动的时候将Installer添加到容器中

new WindsorContainer().Install(new ControllersInstaller();

后两步是将所有实现了IController接口的类注册到容器中

转载于:https://www.cnblogs.com/dongshuangjie/p/5312043.html