.net Core 学习笔记(实体字段映射，IOC注入)

https://github.com/wj1034184751/ADO.NetCore.git

先简单的做一个学习架子，

EF层用的是 EFCore(2.1.0)+ Pomelo.EntityFrameworkCore.MySql(2.1.0)

实体映射主要是用了这三个类:

 public interface IEntityTypeConfiguration
    {
        void Map(ModelBuilder builder);
    }

    public interface IEntityTypeConfiguration<T> : IEntityTypeConfiguration where T : class
    {
        void Map(EntityTypeBuilder<T> builder);
    }

 public abstract class WGEntityTypeConfig<T> : IEntityTypeConfiguration<T> where T : class
    {
        public abstract void Map(EntityTypeBuilder<T> builder);

        public void Map(ModelBuilder builder)
        {
            Map(builder.Entity<T>());
        }
    }

  public  static class ModelBuilderExtentcs
    {
        private static IEnumerable<Type> GetMappingTypes(this Assembly assembly,Type mappingInterface)
        {
            return assembly.GetTypes().Where(x => !x.GetTypeInfo().IsAbstract && x.GetInterfaces().
            Any(y => y.GetTypeInfo().IsGenericType && y.GetGenericTypeDefinition() == mappingInterface));
        }

        public static void AddEntityConfigurationsFromAssembly(this ModelBuilder modelBuilder,Assembly assembly)
        {
            var mappingTypes = assembly.GetTypes()
               .Where(type => type.BaseType != null && type.BaseType.IsGenericType && type.BaseType.GetGenericTypeDefinition() == typeof(WGEntityTypeConfig<>));
            //var mappingTypes = assembly.GetMappingTypes(typeof(WGEntityTypeConfig<>));
            foreach (var config in mappingTypes.Select(Activator.CreateInstance).Cast<IEntityTypeConfiguration>())
            {
                config.Map(modelBuilder);
            }
        }
    }

然后在这里

接下来是简单的注入:

项目分成这几层：

BLL,DAL,EF，UI

BLL,DAL 层要实现注入可以加一个接口，IServiceSupportExten

然后

   Assembly asmBLL = Assembly.Load(new AssemblyName("BLL"));
            var serviceBLLTypes = asmBLL.GetTypes().Where(t => typeof(IServiceSupportExten).IsAssignableFrom(t) && !t.GetTypeInfo().IsAbstract);
            foreach (var serviceType in serviceBLLTypes)
            {
                foreach (var interType in serviceType.GetInterfaces())
                {
                    services.AddSingleton(interType, serviceType);
                }
            }

            Assembly asmDAL = Assembly.Load(new AssemblyName("DAL"));
            var serviceDALTypes = asmDAL.GetTypes().Where(t => typeof(IServiceSupportExten).IsAssignableFrom(t) && !t.GetTypeInfo().IsAbstract);
            foreach (var serviceType in serviceDALTypes)
            {
                foreach (var interType in serviceType.GetInterfaces())
                {
                    services.AddSingleton(interType, serviceType);
                }
            }

　　

.net Core 默认提供了一种注入方式，然后，自己也去网上找了代码写了别一种