Unity的使用

1、Ioc功能使用:

  1、介绍对象的生命周期

    顾名思义 在容器中存在的实例,是可以定义其生命周期的。

     Unity提供了 几种自带的 生命周期 管理类(常用的已标红)

      ContainerControlledLifetimeManager 所谓的“单例模式” 

      PerThreadLifetimeManager,每线程生命周期管理器,就是保证每个线程返回同一实例

      TransientLifetimeManager,瞬态生命周期,默认情况

      ExternallyControlledLifetimeManager 外部控制生命周期管理器

      HierarchicalLifetimeManager 分层生命周期管理器(没用过)

      PerResolveLifetimeManager,这个生命周期是为了解决循环引用而重复引用的生命周期

  2、使用代码注册对象

//对于已经存在的实例:
OrderManagement orderManagement=new OrderManagement();
IUnityContainer container = new UnityContainer();
container.RegisterInstance(orderManagement);

//使用Ioc内部创建
IUnityContainer container = new UnityContainer();
container.RegisterType<OrderManagement>();

//单例模式演示:
 IUnityContainer container = new UnityContainer();
 container.RegisterType<OrderManagement>(new ContainerControlledLifetimeManager());
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  3、使用配置文件注册对象

 1 <configuration>
 2   <configSections>
 3     <section name="unity" type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection,Microsoft.Practices.Unity.Configuration" />
 4   </configSections>
 5   <unity xmlns="http://schemas.microsoft.com/practices/2010/unity">
 6     <typeAliases>
 7       <!-- Lifetime manager types -->
 8       <typeAlias alias="singleton" type="Microsoft.Practices.Unity.ContainerControlledLifetimeManager,Microsoft.Practices.Unity" />
 9       <typeAlias alias="external" type="Microsoft.Practices.Unity.ExternallyControlledLifetimeManager,Microsoft.Practices.Unity" />
10       <typeAlias alias="perThread" type="Microsoft.Practices.Unity.PerThreadLifetimeManager,Microsoft.Practices.Unity" />
11       <!-- User-defined type aliases -->
12       <typeAlias alias="Order" type="Demo.Order,Demo" />
13     </typeAliases>
14     <container>
15       <types>       
16         <type type="Order" >
17           <lifetime type="singleton" />
18         </type>
19       </types>
20     </container>
21   </unity>
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1 IUnityContainer container = new UnityContainer();
2 container.LoadConfiguration();
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  4、获取对象

    

container.Resolve<OrderManagement>();
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  5、在MVC中使用

    

//新建类
 public class UnityDependencyResolver : IDependencyResolver
    {
        private readonly IUnityContainer _unityContainer;

        public UnityDependencyResolver(IUnityContainer container)
        {
            this._unityContainer = container;
        }

        public object GetService(Type serviceType)
        {
            try
            {
                return _unityContainer.Resolve(serviceType);
            }
            catch
            {
                return null;
            }
        }

        public IEnumerable<object> GetServices(Type serviceType)
        {
            try
            {
                return _unityContainer.ResolveAll(serviceType);
            }
            catch
            {
                return new List<object>();
            }
        }
    }
View Code
//往 Application_Start() 里写入

var container = new UnityContainer();
//从配置文件 读取 注入实例
container.LoadConfiguration();
DependencyResolver.SetResolver(new UnityDependencyResolver(container));
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在Controller 里面使用

 public class HomeController : Controller
    {

        [Dependency]
        internal OrderManagement Management { set; get; }

        public ActionResult Index()
        {

            Management.Save();
            return View();
        }

    }

2、Aop功能使用:

  

原文地址:https://www.cnblogs.com/rufus-hua/p/3645192.html