Simple use of Autofac and simple use of Autofac

Simple use of Autofac and simple use of Autofac

Record the process of learning Autofac today.

I have been confused about IoC and DI before. I have a preliminary understanding of IoC and DI only after studying the articles of my predecessors. Thank you for your selfless dedication!

Article address:

The understanding of dependency injection and control inversion is too good.

Chapter 2 IoC 2.1 IoC basics -- Spring3

What? It is clearly the basic use of recording Autofac...

Okay, go back to the topic.

First, build a time output program:

public interface IOutput{    void Write(string content);}

public class ConsoleOutput : IOutput{    public void Write(string content)    {        Console.WriteLine(content);    }}    

public interface IDateWrite{    void WriteDate();}

public class TodayWrite : IDateWrite{    private IOutput _output;    public TodayWrite(IOutput output)    {        this._output = output;    }    public void WriteDate()    {        this._output.Write(DateTime.Now.ToShortDateString());    }}    

Class Program {static void Main (string [] args ){
// Create an output object leleoutput ConsoleOutput = new consoleOutput ();
// Create a date output object and inject the output object TodayWrite todayWrite = new TodayWrite (consoleOutput) on which the date output object depends by using the constructor );
// Execute the output date method todayWrite. WriteDate (); Console. Read ();}}

The above is the original implementation method. Now we can see that it has a reasonable dependency structure, so we can use it together with Autofac.

First, add the reference of Autofac.

Open tool> choose NuGet Package Manager> Manage NuGet packages for the solution

Do not reference Autofac after installation

using Autofac;

Next, refactor the Program class.

class Program{    private static IContainer Container { get; set; }    static void Main(string[] args)    {        var builder = new ContainerBuilder();        builder.RegisterType<ConsoleOutput>().As<IOutput>();        builder.RegisterType<TodayWrite>().As<IDateWrite>();        Container = builder.Build();        WriteDate();        Console.Read();    }    static void WriteDate()    {        using (ILifetimeScope scope = Container.BeginLifetimeScope())        {            var write = scope.Resolve<IDateWrite>();            write.WriteDate();        }    }}

Finally, paste the Autofac document address: Autofac