asp.net-core – 来自带有Entity Framework Core的Data Tier中的

using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;

namespace your.service.layer
{
    public static class MyServiceCollectionExtensions
    {
        public static IServiceCollection AddMyServiceDependencies(this IServiceCollection services,string connectionString)
        {
             services.AddEntityFrameworkSqlServer()
            .AddDbContext<YourDbContext>((serviceProvider,options) =>
            options.UseSqlServer(connectionString)
                   .UseInternalServiceProvider(serviceProvider)
                   );
             return services;
        }
    }

}

启动：

using your.service.layer;

public void ConfigureServices(IServiceCollection services)
{
    var connectionString = Configuration.GetConnectionString("EntityFrameworkConnectionString");
    services.AddMyServiceDependencies(connectionString);
}

现在,您的网络应用仅需要对您的业务/服务层的引用,并且它不直接依赖于EntityFramework.