一直有自己写个框架的想法,但是一直没有行动起来,最近比较闲,正好可以开工了.
现在已经完成了两部分.1.一个简单仓储,实现使用的是ef 2.IOC部分,这里是把内置的ioc替换成了aotofac,这部分感觉还是有一点缺陷的.下面说
仓储部分
这里主要是接口是实现,目前使用ef实现了仓储的接口.看一下代码
public interface IRepositorywhere TEntity : class { #region Select/Get/Query IQueryable GetAll(); IQueryable GetAllIncluding(params expression >[] propertySelectors); List GetAllList(); Task > GetAllListAsync(); List
GetAllList(expression > predicate); Task > GetAllListAsync(expression
> predicate); T Query (Func , T> queryMethod); TEntity Get(TPrimaryKey id); Task GetAsync(TPrimaryKey id); TEntity Single(expression > predicate); Task SingleAsync(expression > predicate); TEntity FirstOrDefault(TPrimaryKey id); Task FirstOrDefaultAsync(TPrimaryKey id); TEntity FirstOrDefault(expression > predicate); Task FirstOrDefaultAsync(expression > predicate); TEntity Load(TPrimaryKey id); #endregion #region Insert TEntity Insert(TEntity entity); Task InsertAsync(TEntity entity); #endregion #region Update TEntity Update(TEntity entity); Task UpdateAsync(TEntity entity); TEntity Update(TPrimaryKey id, Action updateAction); Task UpdateAsync(TPrimaryKey id, Func updateAction); #endregion #region Delete void Delete(TEntity entity); Task DeleteAsync(TEntity entity); void Delete(TPrimaryKey id); Task DeleteAsync(TPrimaryKey id); void Delete(expression > predicate); Task DeleteAsync(expression > predicate); #endregion #region Aggregates int Count(); Task CountAsync(); int Count(expression > predicate); Task CountAsync(expression > predicate); long LongCount(); Task LongCountAsync(); long LongCount(expression > predicate); Task LongCountAsync(expression > predicate); #endregion }
下面是实现的部分代码,代码比较占版面,就不贴全了.
public abstract class Repositorybase: IRepository where TEntity : class { public abstract IQueryable GetAll(); public abstract IQueryable GetAllIncluding(params expression >[] propertySelectors); public virtual List GetAllList() { return GetAll().ToList(); } public virtual async Task > GetAllListAsync() { return await Task.FromResult(GetAllList()); } }
public class EfRepositorybase: Repositorybase where TEntity : class where TDbContext : DbContext { public virtual TDbContext Context { private set; get; } public virtual DbSet Table => Context.Set (); public EfRepositorybase(TDbContext context) { Context = context; } public override IQueryable GetAll() { return Table; } public override IQueryable GetAllIncluding(params expression >[] propertySelectors) { if (propertySelectors == null) { return GetAll(); } var linq = GetAll(); foreach (var item in propertySelectors) { linq = linq.Include(item); } return linq; } }
注意看EfRepositorybase继承了Repositorybase,而Repositorybase实现了IRepository.这里的Repositorybase是所有实现的基类.GetAllList虚方法直接调用了抽象方法GetAll,这样在EfRepositorybase中就可以减少很多代码了.
这里有个坑 EfRepositorybase 是不能直接注册到IOC中的,因为EfRepositorybase和IRepository的泛型参数个数不一致,ioc不能找到多出的一个泛型的值.使用仓储的时候继承EfRepositorybase把dbcontext传进去就好了
public class TestRepository: EfRepositorybase where TEntity : class { public TestRepository(TestContext context) : base(context) { } }
IOC部分
asp.net core 微软提供了一个简单的IOC,但是接口比较少,替换成我们熟悉的ioc框架就方便多了. asp.net core 也有很方便的替换ioc的方法.简单说就是修改ConfigureServices方法的返回值为IServiceProvider.我使用了autofac,下面看代码.
public IServiceProvider ConfigureServices(IServiceCollection services)
{
services.AddMvc();
return services.AddLuna();
}
public static IServiceProvider AddLuna([NotNull]this IServiceCollection services)
where TModule : IModule, new()
{
var builder = new ContainerBuilder();
builder.Populate(services);
builder.RegisterModule();
return new AutofacServiceProvider(builder.Build());
}
public class AutofacModule : Module
{
protected override void Load(ContainerBuilder builder)
{
builder.RegisterType();
builder.RegisterGeneric(typeof(TestRepository<,>)).As(typeof(IRepository<,>))
.InstancePerLifetimeScope();
}
}
这里的Module和IModule是autofac的,功能已经实现了,但是作为框架来说直接暴露了autofac的东西显然是不合适的,下一步要实现一个框架自身的模块加载方式.
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持考高分网。



