private void ApplyLifeTime <T>(Autofac.Builder.IRegistrationBuilder <T, Autofac.Builder.IConcreteActivatorData, Autofac.Builder.SingleRegistrationStyle> x, LifeSpan lifeSpan)
{
switch (lifeSpan)
{
case LifeSpan.InstancePerLifetimeScope:
x.InstancePerLifetimeScope();
break;
case LifeSpan.NewInstancePerRequest:
x.InstancePerRequest();
break;
case LifeSpan.SingleInstance:
x.SingleInstance();
break;
}
}
PerLifeStyle <TLimit, TActivatorData, TRegistrationStyle>
(this Autofac.Builder.IRegistrationBuilder <TLimit, TActivatorData, TRegistrationStyle> builder,
ComponentLifeStyle lifeStyle)
{
switch (lifeStyle)
{
case ComponentLifeStyle.LifetimeScope:
return(HttpContext.Current != null?builder.InstancePerHttpRequest() : builder.InstancePerLifetimeScope());
case ComponentLifeStyle.Transient:
return(builder.InstancePerDependency());
case ComponentLifeStyle.Singleton:
return(builder.SingleInstance());
default:
return(builder.SingleInstance());
}
}
public static Autofac.Builder.IRegistrationBuilder <TLimit, TActivatorData, TRegistrationStyle> PerLifeStyle <TLimit, TActivatorData, TRegistrationStyle>(this Autofac.Builder.IRegistrationBuilder <TLimit, TActivatorData, TRegistrationStyle> builder, ComponentLifeStyle lifeStyle)
{
switch (lifeStyle)
{
case ComponentLifeStyle.LifetimeScope:
return(builder.InstancePerLifetimeScope());
case ComponentLifeStyle.Transient:
return(builder.InstancePerDependency());
case ComponentLifeStyle.Singleton:
return(builder.SingleInstance());
default:
return(builder.SingleInstance());
}
}
/// <summary>
/// AutoFac的容器 判断是否存在,存在就直接使用,不存在就创建
/// </summary>
/// <param name="svrName">服务程序集名称</param>
/// <returns></returns>
public static IServiceProvider Register(IServiceCollection services, string[] svrNames)
{
if (_container == null)
{
lock (_lock)
{
if (_container == null)
{
// IOC容器注册 构造一个AutoFac的builder容器
ContainerBuilder builder = new ContainerBuilder();
builder.Populate(services);
List <Type> types = new List <Type>();
foreach (string item in svrNames)
{
// 加载接口服务实现层。
Assembly SvrAss = Assembly.Load(item);
// 反射扫描这个程序集中所有的类，得到这个程序集中所有类的集合。
types.AddRange(SvrAss.GetTypes());
}
// 告诉AutoFac容器，创建stypes这个集合中所有类的对象实例 在一次Http请求上下文中,共享一个组件实例
Autofac.Builder.IRegistrationBuilder <object, Autofac.Features.Scanning.ScanningActivatorData, Autofac.Builder.DynamicRegistrationStyle> register = builder.RegisterTypes(types.ToArray()).AsImplementedInterfaces().InstancePerLifetimeScope().PropertiesAutowired();//指明创建的stypes这个集合中所有类的对象实例，以其接口的形式保存
//创建一个真正的AutoFac的工作容器
_container = builder.Build();
}
}
}
return(new AutofacServiceProvider(_container));
}
