AutoFac学习笔记

AutoFac
属性注册：
反射：builder.RegisterType<AutoFacManager>().PropertiesAutowired();
预先定义：builder.RegisterType<AutoFacManager>().WithProperty("person", new Worker());
构造时候：builder.Register(c => new AutoFacManager { person = c.Resolve<IPerson>() });
循环依赖，创建后：builder.Register(c => new AutoFacManager()).OnActivated(e => e.Instance.person = e.Context.Resolve<IPerson>());

生命周期：
默认生命周期，每次请求创建新对象：　　
builder.RegisterType<Worker>().InstancePerDependency();
单例，每次使用同一对象：builder.RegisterType<Worker>().SingleInstance();
同一个生命周期使用同一对象：　builder.RegisterType<Worker>().InstancePerLifetimeScope();
上下文:　　builder.RegisterType<XWorker>().InstancePerMatchingLifetimeScope(MyContextHierarchy.UserSession);
var userSessionLifetime = container.BeginLifetimeScope();
　　userSessionLifetime.Tag = MyContextHierarchy.UserSession;

自己管理生命周期：
private Owned<IOutput> _output;

别名区分：
　 builder.RegisterType<Worker>().Named<IPerson>("worker");
　　IPerson p = container.ResolveNamed<IPerson>("worker");

枚举区分：
builder.RegisterType<Student>().Keyed<IPerson>(DeviceState.Student);
IPerson p = container.ResolveKeyed<IPerson>(DeviceState.Student);
枚举，索引获取：
IIndex<DeviceState, IPerson> IIndex = container.Resolve<IIndex<DeviceState, IPerson>>();
IPerson p = IIndex[DeviceState.Student];

构造函数选择：
　参数类型：　builder.RegisterType(typeof(Worker)).UsingConstructor(typeof(int));
参数： List<NamedParameter> ListNamedParameter = new List<NamedParameter>() { new NamedParameter("Id", 1), new NamedParameter("Name", "张三") };
builder.RegisterType<Worker>().WithParameters(ListNamedParameter).As<IPerson>();
自动：　builder.RegisterAssemblyTypes(Assembly.GetExecutingAssembly()).As<IPerson>();

程序集扫描：
builder.RegisterAssemblyTypes(Assembly.GetExecutingAssembly()).Where(t => t.Name.EndsWith("Manager"));
排除：Except<AutoFacManager)>()，Except<Worker>(ct =>ct.As<IPerson>().SingleInstance())

方法注入：
构造函数： builder.Register(c =>
{
var result = new AutoFacManager();
result.SetDependency(c.Resolve<IPerson>());
return result;
});

　Activing: builder.Register<AutoFacManager>(c => new AutoFacManager()).OnActivating(e => e.Instance.SetDependency(new Worker()));

Resolve：
传递参数： AutoFacManager manager = container.Resolve<AutoFacManager>(new NamedParameter("name", "刘备"));
TypedParameter/ResolvedParameter/NamedParameter /NamedParameter 和TypedParameter
builder.Register((c, p) => new AutoFacManager(p.Named<string>("name"), c.Resolve<IPerson>()));
AutoFacManager manager = container.Resolve<AutoFacManager>(new NamedParameter("name", "刘备"));

循环依赖：
cb.Register<Worker>().OnActivated(ActivatedHandler.InjectUnsetProperties);