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  • AutoFac使用方法总结三:生命周期

         生命周期

         AutoFac中的生命周期概念非常重要,AutoFac也提供了强大的生命周期管理的能力。
         AutoFac定义了三种生命周期:

    Per Dependency
    Single Instance
    Per Lifetime Scope

         Per Dependency为默认的生命周期,也被称为’transient’或’factory’,其实就是每次请求都创建一个新的对象

     1    [Fact]
     2     public void per_dependency()
     3     {
     4         var builder = new ContainerBuilder();
     5         builder.RegisterType<MyClass>().InstancePerDependency();
     6         IContainer container = builder.Build();
     7         var myClass1 = container.Resolve<MyClass>();
     8         var myClass2 = container.Resolve<MyClass>();
     9         Assert.NotEqual(myClass1,myClass2);
    10     }

         Single Instance也很好理解,就是每次都用同一个对象

     1     [Fact]
     2     public void single_instance()
     3     {
     4         var builder = new ContainerBuilder();
     5         builder.RegisterType<MyClass>().SingleInstance();
     6       
     7         IContainer container = builder.Build();
     8         var myClass1 = container.Resolve<MyClass>();
     9         var myClass2 = container.Resolve<MyClass>();
    10       
    11         Assert.Equal(myClass1,myClass2);
    12     }

         Per Lifetime Scope,同一个Lifetime生成的对象是同一个实例

     1     [Fact]
     2     public void per_lifetime_scope()
     3     {
     4         var builder = new ContainerBuilder();
     5         builder.RegisterType<MyClass>().InstancePerLifetimeScope();
     6       
     7         IContainer container = builder.Build();
     8         var myClass1 = container.Resolve<MyClass>();
     9         var myClass2 = container.Resolve<MyClass>();
    10       
    11         ILifetimeScope inner = container.BeginLifetimeScope();
    12         var myClass3 = inner.Resolve<MyClass>();
    13         var myClass4 = inner.Resolve<MyClass>();
    14       
    15         Assert.Equal(myClass1,myClass2);
    16         Assert.NotEqual(myClass2,myClass3);
    17         Assert.Equal(myClass3,myClass4);
    18     }
     1     [Fact]
     2     public void life_time_and_dispose()
     3     {
     4         var builder = new ContainerBuilder();
     5         builder.RegisterType<Disposable>();
     6 
     7         using (IContainer container = builder.Build())
     8         {
     9             var outInstance = container.Resolve<Disposable>(new NamedParameter("name", "out"));
    10 
    11             using(var inner = container.BeginLifetimeScope())
    12             {
    13                 var inInstance = container.Resolve<Disposable>(new NamedParameter("name", "in"));
    14             }//inInstance dispose here
    15         }//out dispose here
    16     }

    转载链接:http://niuyi.github.io/blog/2012/04/06/autofact-by-unit-test3/

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  • 原文地址:https://www.cnblogs.com/supersnowyao/p/8455076.html
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