本文主要是介绍使用Volo.Abp读取Sqlite表中数据，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
书接上文：Abp 从空白的WebApplication中添加EntityFrameworkCore生成数据库
开发环境：.NET6、Volo.Abp
数据库：Sqlite
说明：纯属个人强行入门。我个人觉得按照官网的操作不舒服，所以自己研究着来，请读者根据自己的需要进行参考。我能保证的是按照文章操作能够得到和我一样的结果。
1、在应用层中添加项目DemoApplication 项目目录如下图所示：
1.1、项目中引入包情况如下：
<Project Sdk="Microsoft.NET.Sdk"><PropertyGroup><TargetFramework>net6.0</TargetFramework><ImplicitUsings>enable</ImplicitUsings><Nullable>enable</Nullable></PropertyGroup><ItemGroup><PackageReference Include="Volo.Abp.AspNetCore" Version="6.0.3" /><PackageReference Include="Volo.Abp.Autofac" Version="6.0.3" /><PackageReference Include="Volo.Abp.AutoMapper" Version="6.0.3" /><PackageReference Include="Volo.Abp.Ddd.Application" Version="6.0.3" /></ItemGroup><ItemGroup><ProjectReference Include="..\DemoEntityFrameworkCore\DemoEntityFrameworkCore.csproj" /></ItemGroup></Project>
1.2、创建DemoApplicationCoreModule类，代码如下：
using DemoApplication.Book;
using DemoEntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Volo.Abp.Application;
using Volo.Abp.Autofac;
using Volo.Abp.AutoMapper;
using Volo.Abp.Modularity;namespace DemoApplication
{[DependsOn(typeof(AbpAutoMapperModule), typeof(AbpAutofacModule))]public class DemoApplicationCoreModule:AbpModule{public override void ConfigureServices(ServiceConfigurationContext context){ Configure<AbpAutoMapperOptions>(options =>{options.AddMaps<DemoApplicationCoreModule>();});}}
}
1.3、创建类BookInfoAppService，代码如下：
using DemoDomain.Book;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Volo.Abp.Application.Services;
using Volo.Abp.Autofac;
using Volo.Abp.DependencyInjection;
using Volo.Abp.Domain.Repositories;
using Volo.Abp.Modularity;namespace DemoApplication.Book
{[DependsOn(typeof(AbpAutofacModule))]public class BookInfoAppService:ApplicationService,ITransientDependency{private readonly IRepository<BookInfo, Guid> _bookInfoRepository;public BookInfoAppService(IRepository<BookInfo, Guid> bookInfoRepository){_bookInfoRepository = bookInfoRepository;}public List<BookInfo> Get(){long count= _bookInfoRepository.GetCountAsync().Result;List<BookInfo> listBookInfos= _bookInfoRepository.GetListAsync().Result;return listBookInfos;}}
}
1.4、目录中BookInfoDTO类目前没有使用到，也把代码粘上来吧：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;namespace DemoApplication.Book.Dto
{public class BookInfoDTO{public string Name { get; set; }public string Description { get; set; }}
}
1.5、 目录中ApplicationAutoMapperProfile类目前没有使用到，也把代码粘上来吧：
using AutoMapper;
using DemoApplication.Book.Dto;
using DemoDomain.Book;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Volo.Abp.Autofac;
using Volo.Abp.AutoMapper;
using Volo.Abp.Modularity;namespace DemoApplication
{[DependsOn(typeof(AbpAutofacModule))]public class ApplicationAutoMapperProfile:Profile{public ApplicationAutoMapperProfile(){//创建一个实体的映射CreateMap<BookInfo, BookInfoDTO>(); }}
}
2、对于用户接口层要做的修改。
2.1、修改DemoAbpModule类中代码，具体代码如下：
using Volo.Abp.Modularity;
using Volo.Abp.Autofac;
using Volo.Abp.AspNetCore;
using Volo.Abp;
using DemoApplication;
using DemoApplication.Book;
using Volo.Abp.AutoMapper;
using DemoEntityFrameworkCore;
using Microsoft.EntityFrameworkCore;
using Volo.Abp.Auditing;
using Microsoft.Extensions.DependencyInjection.Extensions;
using DemoDomain;namespace DemoAspNetCoreApplict
{[DependsOn(typeof(AbpAspNetCoreModule),typeof(AbpAutofacModule),typeof(DemoDomainAbpModule),typeof(DemoEntityFrameworkCroeAbpModule),typeof(DemoApplicationCoreModule))]public class DemoAbpModule:AbpModule{public override void PreConfigureServices(ServiceConfigurationContext context){base.PreConfigureServices(context);var hostingEnviroment = context.Services.GetHostingEnvironment();var configuration = context.Services.GetConfiguration();}public override void OnApplicationInitialization(ApplicationInitializationContext context){ var app=context.GetApplicationBuilder();var env=context.GetEnvironment();if(env.IsDevelopment()){app.UseExceptionHandler("/Error");app.UseHsts();}app.UseHttpsRedirection();app.UseStaticFiles();app.UseRouting();app.UseEndpoints(endpoints =>{endpoints.MapControllers();});app.UseConfiguredEndpoints();//app.UseAuthorization();base.OnApplicationInitialization(context);}public override void ConfigureServices(ServiceConfigurationContext context){ base.ConfigureServices(context);context.Services.AddControllers();context.Services.AddDbContext<DemoDbContext>(options =>{options.UseSqlite("Data Source=E:\\ABP\\demo.db;");});Configure<AbpAutoMapperOptions>(options =>{options.AddMaps<DemoApplicationCoreModule>();});context.Services.Configure<AbpAuditingOptions>(options =>{options.IsEnabled = true;});}}
}
2.2、注意需要添加依赖对象，不然你会收到意想不到的意外哦。具体如下：
typeof(DemoDomainAbpModule),typeof(DemoEntityFrameworkCroeAbpModule),typeof(DemoApplicationCoreModule)2.3、添加一个控制器GetBookInfoController，具体代码如下：
using DemoApplication.Book;
using DemoApplication.Book.Dto;
using DemoDomain.Book;
using Microsoft.AspNetCore.Mvc;
using System.Collections.Generic;
using Volo.Abp.AspNetCore.Mvc;namespace DemoAspNetCoreApplict
{[ApiController][Route("api/[controller]/[action]")]public class GetBookInfoController: AbpController{private readonly ILogger<GetBookInfoController> _logger;private readonly BookInfoAppService _bookInfoAppService;public GetBookInfoController(ILogger<GetBookInfoController> logger, BookInfoAppService bookInfoAppService){_logger = logger;_bookInfoAppService = bookInfoAppService;}[HttpGet]public IEnumerable<BookInfo> Get(){List<BookInfo> bookInfo = _bookInfoAppService.Get().ToList();return bookInfo;}}
}
3、具体的可执行代码已上传，想赚点小钱钱喽有需要的请去下载吧。
https://download.csdn.net/download/xingchengaiwei/888151984
4、推广一个云服务器，买服务器的私聊我送源代码呦。
开发云 - 一站式云服务平台
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