在另一个 Class 文件中编写 ConfigureServices 方法

Question

我们公司的项目有一个模板，他们在另一个 class 中编写了 AddTransient<>() 方法。我想知道如何将 ConfigureServices 启动方法放入另一个 class.

看到我们有一个非常简单的启动项目，如下所示：

public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddControllers();
        services.AddTransient<LocationService, LocationService>();
        services.AddTransient<PersonService, PersonService>();
        services.AddTransient<UserService, UserService>();
        services.AddAutoMapper(typeof(Startup));
    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }

        app.UseHttpsRedirection();

        app.UseRouting();

        app.UseAuthorization();

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllers();
        });
    }
}

我想将我的（依赖 class 注册）移动到我项目中的另一个 class。

所以这将是我的新 Startup.cs:

 public class Startup
{
public Startup(IConfiguration configuration)
{
    Configuration = configuration;
}

public IConfiguration Configuration { get; }

// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
    services.AddControllers();
    services.AddAutoMapper(typeof(Startup));
}

// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
    }

    app.UseHttpsRedirection();

    app.UseRouting();

    app.UseAuthorization();

    app.UseEndpoints(endpoints =>
    {
        endpoints.MapControllers();
    });
}
}

这将是我的 ExampleFileName.cs :

 public void ConfigureServices(IServiceCollection services)
{
    services.AddTransient<LocationService, LocationService>();
    services.AddTransient<PersonService, PersonService>();
    services.AddTransient<UserService, UserService>();
}

Answer 1

我瞎打的，这是你想要的吗？

public abstract class StartUpBase
{
    public virtual void ConfigureServices(IServiceCollection services)
    {
        services.AddTransient<LocationService, LocationService>();
        services.AddTransient<PersonService, PersonService>();
        services.AddTransient<UserService, UserService>();
    }
}


public class StartUp : StartUpBase
{
     public override ConfigureServices(IServiceCollection services)
     {
          services.AddControllers();
          base.ConfigureServices(services);
          services.AddAutoMapper(typeof(Startup));
          
     }
}

选择：

public static class Another
{
   public static IServiceCollection AddTransitentServices(IServiceCollection services)
   {
       //add your transistent services here

       return services;
   } 
}

public class StartUp
{
     public override ConfigureServices(IServiceCollection services)
     {
          services.AddControllers();
          services = Another.AddTransitentServices(services)
          services.AddAutoMapper(typeof(Startup));

     }
}

Answer 2

首先，您必须创建一个名为 Extensions 的文件夹，您可以在其中创建一个任意名称的文件。我给我的文件名是ApplicationService.

Extensions/ApplicationServiceExtensions.cs

namespace API.Extensions
{
    public static class ApplicationServiceExtensions
    {
        public static IServiceCollection AddApplicationServices(this IServiceCollection services, IConfiguration config)
        {
             
            services.AddTransient<LocationService, LocationService>();
            services.AddTransient<PersonService, PersonService>();
            services.AddTransient<UserService, UserService>();

            return services;

        }
    }
}

startup.cs

 private readonly IConfiguration _config;
        public Startup(IConfiguration config)
        {
            _config = config;
           
        }

        public IConfiguration Configuration { get; }

        //clarify code



 public void ConfigureServices(IServiceCollection services)
        {
           services.AddApplicationServices(_config);
           
            //clarify code
        }

所以，这是将 ConfigureServices 启动方法放入另一个 class 的示例。以及你想要的。

在另一个 Class 文件中编写 ConfigureServices 方法

Write ConfigureServices Method In Another Class File

c#

asp.net

dependency-injection

asp.net-core