ABP架构学习系列四：集成Dapper

　　以前，一直想集成Dapper到项目中，可是一直没成功，今天把abp升级到最新版，而后按教程来，就能够了，呵呵

　   如今，基于上一篇的源码进行升级和集成dapper，将abp升级到3.8.2

　  官方升级文档：https://github.com/ABPFrameWorkGroup/AbpDocument2Chinese/blob/master/Markdown/Abp/9.5ABP%E5%9F%BA%E7%A1%80%E8%AE%BE%E6%96%BD%E5%B1%82-%E9%9B%86%E6%88%90Dapper.md

1、注册Module

　　首先，你要在Module类上添加 DependsOn 特性，而且使用 AbpDapperModule 做为传入参数。依赖关系的前后顺序 AbpDapperModule 依赖应该在 EF Core依赖以后。

　　修改ZmBlog.Infrastructure的ZmBlogDataModule 以下：

namespace ZmBlog.EntityFramework
{
    [DependsOn(typeof(ZmBlogCoreModule), typeof(AbpEntityFrameworkModule), typeof(AbpDapperModule))]
    public class ZmBlogDataModule : AbpModule
    {
        public override void PreInitialize()
        {
            Database.SetInitializer(new CreateDatabaseIfNotExists<ZmBlogDbContext>());

            Configuration.DefaultNameOrConnectionString = "DefaultConnection";
        }

        public override void Initialize()
        {
            IocManager.RegisterAssemblyByConvention(Assembly.GetExecutingAssembly());

            DapperExtensions.DapperExtensions.SetMappingAssemblies(new List<Assembly> { typeof(ZmBlogDataModule).GetAssembly() });
        }
    }
}

2、配置实体与表的映射

　　和ef同样，须要配置映射关系

public class PersonMapper : ClassMapper<Category>
    {
        public PersonMapper()
        {
            Table("Categories");
            AutoMap();
        }
    }

PS: 若是同时使用ef，它的映射最好使用ToTable指定表名，否则ef会自动转换最后一个单词为复数

 

3、使用

　　1.在应用层使用

　　　　 private readonly IRepository<Category, string> _categoryRepository; 
        private readonly IDapperRepository<Category, string> _categoryDapperRepository; 
        private readonly ICategoryDapperRepository _categoryDapperRepo; 
 

        public CategoryApp(IRepository<Category, string> categoryRepository, IDapperRepository<Category, string> categoryDapperRepository, ICategoryDapperRepository categoryDapperRepository2)
        {
            _categoryRepository = categoryRepository;
            _categoryDapperRepository = categoryDapperRepository;
            _categoryDapperRepo = categoryDapperRepository2;
        }

　　2.DapperRepository的封装

　　封装的仓储基类

namespace ZmBlog.EntityFramework.EntityFramework.DapperRepositories
{
    public abstract class DapperRepository<TEntity, TPrimaryKey> : DapperEfRepositoryBase<ZmBlogDbContext, TEntity, TPrimaryKey> where TEntity : class, IEntity<TPrimaryKey>
    {
        public DapperRepository(IActiveTransactionProvider activeTransactionProvider) : base(activeTransactionProvider)
        {
        }
    }

    public abstract class DapperRepository<TEntity> : DapperEfRepositoryBase<ZmBlogDbContext, TEntity, string> where TEntity : class, IEntity<string>
    {
        public DapperRepository(IActiveTransactionProvider activeTransactionProvider) : base(activeTransactionProvider)
        {
        }
    }
}

　　定义仓储接口和实现

//领域层
public interface ICategoryDapperRepository : IDapperRepository<Category, string>
    {
    }
//基础设施层
public class CategoryDapperRepository : DapperRepository<Category, string>, ICategoryDapperRepository
    {
        public CategoryDapperRepository(IActiveTransactionProvider activeTransactionProvider) : base(activeTransactionProvider)
        {
        }
    }