https://www.cnblogs.com/artech/p/net-core-di-01.html 大内老A的在.NET Core下对这些的介绍,有一系列文章

https://www.cnblogs.com/jesse2013/p/di-in-aspnetcore.html

https://www.cnblogs.com/artech/p/dependency-injection-in-asp-net-core.html

https://www.zybuluo.com/dasajia2lang/note/1481011

下面开始

在上一篇的笔记中,在.NET Freamwork中,有一个第三方容器Unity,可以实现注入,但是在.NET Core里面,有一个IServiceCollection,这个是.NET Core框架自带的一个容器,和Unity很相似,都是个容器。

下面我们新建一个控制台程序,在控制台程序中,对IServiceCollection的使用做介绍。

下面代码,是本次实例中需要注入的类型,需要用的倒是再点开来看吧

namespace Bingle.Core.Interface
{
    public interface ITestServiceA
    {
        void Show();
    }
}
namespace Bingle.Core.Service
{
    public class TestServiceA : ITestServiceA
    {
        public void Show()
        {
            Console.WriteLine("A123456");
        }
    }
}

namespace Bingle.Core.Interface
{
    public interface ITestServiceB
    {
        void Show();
    }
}

namespace Bingle.Core.Service
{
    public class TestServiceB : ITestServiceB
    {
        
        public TestServiceB(ITestServiceA iTestService)
        {
          
        }


        public void Show()
        { 
            Console.WriteLine($"This is TestServiceB B123456");
        }
    }
}


namespace Bingle.Core.Interface
{
    public interface ITestServiceC
    {
        void Show();
    }
}

namespace Bingle.Core.Service
{
    public class TestServiceC : ITestServiceC
    {
        public TestServiceC(ITestServiceB iTestServiceB)
        {
        }
        public void Show()
        {
            Console.WriteLine("C123456");
        }
    }
}

namespace Bingle.Core.Interface
{
    public interface ITestServiceD
    {
        void Show();
    }
}

namespace Bingle.Core.Service
{
    public class TestServiceD : ITestServiceD
    {
        public void Show()
        {
            Console.WriteLine("D123456");
        }
    }
}
View Code

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