C# IOC注入示例

文章目录

• 主函数
• `常规注入`
• `属性注入`
• `方法注入`

主函数

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Unity;

namespace IOCTest
{
    internal class Program
    {
        static void Main(string[] args)
        {
            IUnityContainer container = new UnityContainer();
            //container.RegisterType<Interface1,Class1>();
            container.RegisterType<Interface5, Class5>();
            //Class1 class1 = container.Resolve<Class1>();
            //Class2 class2 = container.Resolve<Class2>();
            //Class3 class3 = container.Resolve<Class3>();
            //Class4 class4 = container.Resolve<Class4>();

            Class5 class5 = container.Resolve<Class5>();

            Console.ReadKey();
        }
    }
}

常规注入

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace IOCTest
{
    internal interface Interface1
    {
        void Show();
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace IOCTest
{
    internal class Class1 : Interface1
    {
        public Class1()
        {
            Console.WriteLine($"{this.GetType().Name}被构造");
        }

        public void Show()
        {
            Console.WriteLine($"{this.GetType().Name}--Show");
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace IOCTest
{
    internal interface Interface2
    {
        void Show();
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace IOCTest
{
    internal class Class2 : Interface2
    {
        private Class1 _class1 = null;
        public Class2(Class1 class1)
        {
            _class1= class1;
            Console.WriteLine($"{this.GetType().Name}被构造");
        }

        public void Show()
        {
            Console.WriteLine($"{this.GetType().Name}--Show");
        }
    }
}

属性注入

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace IOCTest
{
    internal interface Interface4
    {
        void Show();
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Unity;

namespace IOCTest
{
    internal class Class4
    {
        [Dependency]
        public Class3 _class3 { get; set; }

        public Class4()
        {
            //Console.WriteLine($"{_class3.GetType().Name}被构造");
            Console.WriteLine($"{this.GetType().Name}被构造");
        }

        public void Show()
        {
            Console.WriteLine($"{this.GetType().Name}--Show");
        }
    }
}

方法注入

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace IOCTest
{
    internal interface Interface5
    {
        void Show();

       // void Init(Class4 class4);
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Unity;

namespace IOCTest
{
    internal class Class5:Interface5
    {

        private Class4 _class4 { get; set; }

        public Class5()
        {
            //Console.WriteLine($"{_class3.GetType().Name}被构造");
            Console.WriteLine($"{this.GetType().Name}被构造");
           
        }

        [InjectionMethod]
        public void Init(Class4 class4)
        {
            _class4 = class4;
        }

        public void Show()
        {
            Console.WriteLine($"{this.GetType().Name}--Show");
        }
    }
}