netcore3.1API+efcore快速搭建

框架结构#

实体层 Aer.Enties#

Models-->实体类

业务层 After.IService#

IAltestitemController.cs

业务层 After.Service#

AlltestitemService.cs

接口层 AfterCore#

Controllers-> AlltestitemController.cs

一 EF从数据库生成实体类到Enties#

1.执行以下语句安装依赖包#

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Install-Package MySql.Data.EntityFrameworkCore -Pre
Install-Package Pomelo.EntityFrameworkCore.MySql
Install-Package Microsoft.EntityFrameworkCore.Tools
Install-Package Microsoft.VisualStudio.Web.CodeGeneration.Design

2.在程序包包管理器控制台#

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Scaffold-DbContext "server=localhost;userid=root;pwd=1;port=3306;database=syerp;sslmode=none;" Pomelo.EntityFrameworkCore.MySql -OutputDir Models -Force 

二 业务层#

添加IAlltestitemService.cs接口

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using AfterCore.Models; using System.Collections.Generic; using System.Threading.Tasks; namespace After.IService { public interface IAlltestitemService { /// <summary> /// 查询所有 /// </summary> /// <returns></returns> Task<List<Alltestitem>> GetAllAsync(); /// <summary> /// 查询总数 /// </summary> /// <returns></returns> Task<int> CountAsync(); } } 

After.Service接口实现

AlltestitemService.cs

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using After.IService; using AfterCore.Models; using Microsoft.EntityFrameworkCore; using System.Collections.Generic; using System.Threading.Tasks; namespace After.Service { public class AlltestitemService : IAlltestitemService { private readonly testContext _testDbContext;//DB public AlltestitemService(testContext testContexts) { _testDbContext = testContexts; } public async Task<int> CountAsync() { return await _testDbContext.Alltestitem.CountAsync(); } public async Task<List<Alltestitem>> GetAllAsync() { return await _testDbContext.Alltestitem.ToListAsync(); } } } 

三 注册DbContext#

appsettings.json#

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"ConnectionStrings": { "DefaultConnection": "Server=;database=test;uid=root;pwd=m;" }, 

Startup.cs#

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  //注册DbContext ConfigureServices services.AddDbContext<testContext>(options => options.UseMySql(Configuration.GetConnectionString("DefaultConnection"))); services.AddControllers(); services.AddScoped<IAlltestitemService, AlltestitemService>();//ioc 

四 添加Swagger#

安装依赖包#

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Swashbuckle.AspNetCore

ConfigureServices(IServiceCollection services)#

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//注册swagger服务 services.AddSwaggerGen(c => { c.SwaggerDoc("v1", new OpenApiInfo { Version = "v1", Title = "SN博客 API", Description = "EFCore数据操作 ASP.NET Core Web API", TermsOfService = new Uri("https://example.com/terms"), Contact = new OpenApiContact { Name = "Shayne Boyer", Email = string.Empty, Url = new Uri("https://twitter.com/spboyer"), }, License = new OpenApiLicense { Name = "Use under LICX", Url = new Uri("https://example.com/license"), } }); // 为 Swagger 设置xml文档注释路径 var basePath2 = AppContext.BaseDirectory;// xml路径 //var xmlModelPath = Path.Combine(basePath2, "Snblog.Enties.xml");//Model层的xml文件名 var corePath = Path.Combine(basePath2, "AfterCore.xml");//API层的xml文件名 //c.IncludeXmlComments(xmlModelPath); c.IncludeXmlComments(corePath, true); //添加对控制器的标签(描述) c.CustomSchemaIds(type => type.FullName);// 可以解决相同类名会报错的问题 // c.OperationFilter<AddResponseHeadersFilter>(); // c.OperationFilter<AppendAuthorizeToSummaryOperationFilter>(); // // c.OperationFilter<SecurityRequirementsOperationFilter>(); }); 

Configure(IApplicationBuilder app, IWebHostEnvironment env)#

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 #region Swagger //可以将Swagger的UI页面配置在Configure的开发环境之中 app.UseSwagger(); //和Swagger UI app.UseSwaggerUI(c => { c.SwaggerEndpoint("/swagger/v1/swagger.json", "SN博客API"); c.RoutePrefix = string.Empty; }); #endregion 

五 显示层AfterCore#

Controllers->AlltestitemController.cs

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using After.IService; using Microsoft.AspNetCore.Mvc; using System.Threading.Tasks; //默认的约定集将应用于程序集中的所有操作： [assembly: ApiConventionType(typeof(DefaultApiConventions))] namespace AfterCore.Controllers { [Route("api/[controller]")] [ApiController] public class AlltestitemController : ControllerBase { private readonly IAlltestitemService _service; //IOC依赖注入 public AlltestitemController(IAlltestitemService service) { _service = service; } /// <summary> /// 查询所有 /// </summary> /// <returns></returns> // [ApiExplorerSettings(IgnoreApi = true)] //隐藏接口 或者直接对这个方法 private，也可以直接使用obsolete属性 [HttpGet("GetAllAsync")] public async Task<IActionResult> GetAllAsync() { return Ok(await _service.GetAllAsync()); } /// <summary> /// 查询总数 /// </summary> /// <returns></returns> // [ApiExplorerSettings(IgnoreApi = true)] //隐藏接口 或者直接对这个方法 private，也可以直接使用obsolete属性 [HttpGet("CountAsync")] public async Task<IActionResult> CountAsync() { return Ok(await _service.CountAsync()); } } } 

运行#