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IoC之Unity实现
public static class Bootstrapper { private static ILog logger = LogManager.GetLogger(typeof(Bootstrapper)); static Bootstrapper() { try { logger.Info("start load container"); Container.InitializeWith(new DependencyResolverFactory()); } catch (Exception ex) { logger.Fatal(ex); } } public static void Run() { logger.Info("start run bootstrapper task..."); Container.ResolveAll<IBackgroundTask>().ForEach(action => { action.Start(); }); } }
public interface IDependencyResolverFactory { IDependencyResolver CreateInstance(); }public interface IDependencyResolver : IDisposable { void Register<T>(T instance); void Inject<T>(T existing); T Resolve<T>(Type type); T Resolve<T>(Type type, string name); T Resolve<T>(); T Resolve<T>(string name); IEnumerable<T> ResolveAll<T>(); }
public class DependencyResolverFactory : IDependencyResolverFactory { private static ILog logger = LogManager.GetLogger(typeof(DependencyResolverFactory)); private static Dictionary<string, IDependencyResolver> dictDependency = new Dictionary<string, IDependencyResolver>(); private readonly Type _resolverType; public DependencyResolverFactory(string resolverTypeName) { _resolverType = Type.GetType(resolverTypeName, true, true); } public DependencyResolverFactory() : this(ConfigurationManager.AppSettings["dependencyResolverTypeName"]) { } public IDependencyResolver CreateInstance() { try { if (dictDependency.ContainsKey(_resolverType.FullName)) { return dictDependency[_resolverType.FullName]; } var instance = Activator.CreateInstance(_resolverType, new object[] {"" }) as IDependencyResolver; dictDependency.Add(_resolverType.FullName, instance); return instance; } catch (Exception exception) { logger.Error(exception); } return null; } }
public class UnityDependencyResolver : DisposableResource,IDependencyResolver { private readonly IUnityContainer container; private static object syncObject = new object(); private static Dictionary<string, IUnityContainer> containers = new Dictionary<string, IUnityContainer>(); public UnityDependencyResolver(IUnityContainer container) { this.container = container; } public UnityDependencyResolver(string containerName = ""):this(new UnityContainer().AddNewExtension<Interception>()) { if (containers.ContainsKey(containerName)) { this.container = containers[containerName]; } else { lock (syncObject) { UnityConfigurationSection section = (UnityConfigurationSection)ConfigurationManager.GetSection("unity"); if (section == null) { throw new ConfigurationErrorsException("The Unity configuration section does not exist"); } IUnityContainer con = new UnityContainer(); if (string.IsNullOrEmpty(containerName)) { section.Configure(con); } else { section.Configure(con, containerName); } containers.Add(containerName, con); this.container = containers[containerName]; } } } public void Register<T>(T instance) { container.RegisterInstance(instance); } public void Inject<T>(T instance) { container.BuildUp(instance); } public T Resolve<T>(Type type) { return (T)container.Resolve(type); } public T Resolve<T>(Type type, string name) { return (T)container.Resolve(type, name); } public T Resolve<T>() { return container.Resolve<T>(); } public T Resolve<T>(string name) { return container.Resolve<T>(name); } public IEnumerable<T> ResolveAll<T>() { return container.ResolveAll<T>(); } protected override void Dispose(bool disposing) { if (disposing) { container.Dispose(); } base.Dispose(disposing); } }
<?xml version="1.0" encoding="utf-8" ?><configuration> <configSections> <section name="unity" type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection, Microsoft.Practices.Unity.Configuration" /> </configSections> <unity xmlns="http://schemas.microsoft.com/practices/2010/unity"> <sectionExtension type="Microsoft.Practices.Unity.InterceptionExtension.Configuration.InterceptionConfigurationExtension, Microsoft.Practices.Unity.Interception.Configuration" /> <!-- BackgroundTask --> <alias alias="IBackgroundTask" type="UnitySample.Core.Infrastructure.IBackgroundTask,UnitySample.Core"/> <alias alias="UserSettingBackgroundTask" type="UnitySample.Core.Infrastructure.UserSettingBackgroundTask,UnitySample.Core"/> <!-- Dao--> <alias alias="CacheDataDao" type="UnitySample.Core.Dao.CacheDataDao,UnitySample.Core"/> <alias alias="FunctionCatalogDao" type="UnitySample.Core.Dao.FunctionCatalogDao,UnitySample.Core"/> <alias alias="FunctionDao" type="UnitySample.Core.Dao.FunctionDao,UnitySample.Core"/> <alias alias="ConfigSettingDao" type="UnitySample.Core.Dao.ConfigSettingDao,UnitySample.Core"/> <!-- Cache --> <alias alias="ICache" type="UnitySample.Core.Infrastructure.Caching.ICache,UnitySample.Core"/> <alias alias="CacheImpl" type="UnitySample.Core.Infrastructure.Caching.CacheImpl,UnitySample.Core"/> <!-- db helper--> <alias alias="SQLiteHelper" type="UnitySample.Core.DataAccess.SQLiteHelper,UnitySample.Core" /> <!-- config --> <alias alias="IConfigurationSettings" type="UnitySample.Core.Configuration.IConfigurationSettings,UnitySample.Core"/> <alias alias="ConfigurationSettings" type="UnitySample.Core.Configuration.ConfigurationSettings,UnitySample.Core"/> <alias alias="IEventAggregator" type="UnitySample.Core.Infrastructure.IEventAggregator,UnitySample.Core"/> <alias alias="EventAggregator" type="UnitySample.Core.Infrastructure.EventAggregator,UnitySample.Core"/> <container> <extension type="Interception" /> <!-- BackgroundTask--> <register type="IBackgroundTask" mapTo="UserSettingBackgroundTask" name="UserSettingTask"> <lifetime type="singleton"/> <constructor> <param name="eventAggregator" dependencyType="IEventAggregator" /> <param name="configDao" dependencyType="ConfigSettingDao" /> </constructor> </register> <!-- Cache --> <register type="ICache" mapTo="CacheImpl" name="MemoryCache"> <lifetime type="singleton"/> <constructor> <param name="cacheManagerName" value=http://www.mamicode.com/"MemoryCache" /> </constructor> </register> <register type="ICache" mapTo="CacheImpl" name="FileCache"> <lifetime type="singleton"/> <constructor> <param name="cacheManagerName" value=http://www.mamicode.com/"FileCache" /> </constructor> </register> <register type="ICache" mapTo="CacheImpl" name="CFPCache"> <lifetime type="singleton"/> <constructor> <param name="cacheManagerName" value=http://www.mamicode.com/"CFPCache" /> </constructor> </register> <register type="ICache" mapTo="CacheImpl" name="CFHCache"> <lifetime type="singleton"/> <constructor> <param name="cacheManagerName" value=http://www.mamicode.com/"CFHCache" /> </constructor> </register> <register type="ICache" mapTo="CacheImpl" name="CFSCache"> <lifetime type="singleton"/> <constructor> <param name="cacheManagerName" value=http://www.mamicode.com/"CFSCache" /> </constructor> </register> <!-- Dao --> <register type="CacheDataDao"> <lifetime type="singleton"/> <constructor> <param name="db" dependencyType="SQLiteHelper" /> </constructor> </register> <register type="FunctionCatalogDao"> <lifetime type="singleton"/> <constructor> <param name="db" dependencyType="SQLiteHelper" /> </constructor> </register> <register type="FunctionDao"> <lifetime type="singleton"/> <constructor> <param name="db" dependencyType="SQLiteHelper" /> </constructor> </register> <register type="ConfigSettingDao"> <lifetime type="singleton"/> <constructor> <param name="db" dependencyType="SQLiteHelper" /> </constructor> </register> <!-- DBHelper --> <register type="SQLiteHelper"> <lifetime type="singleton" /> </register> <!--config--> <register type="IConfigurationSettings" mapTo="ConfigurationSettings"> <lifetime type="singleton"/> <constructor> <param name="configDao" dependencyType="ConfigSettingDao" /> <param name="eventAggregator" dependencyType="IEventAggregator" /> </constructor> </register> <register type="IEventAggregator" mapTo="EventAggregator"> <lifetime type="singleton"/> </register> </container> </unity></configuration>
启动：
Bootstrapper.Run();
如果不用Unity，而采用其他IoC框架，只需实现IDependencyResolver，同时将App.config中dependencyResolverTypeName指向即可。
IoC之Unity实现
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