.netCoreMVC添加数据仓储

在上一篇关于CodeFirst从零搭建ASP.NETCore2.0中搭建起了完整.netCoreMVC项目，在这一篇中将实现如何注册service服务和Repository数据仓储到web中实现数据的统一处理.

首先新建项目:DotNetCore20.Service:

右键解决方案>新建项目:DotNetCore20.Service

 添加repository

原先计划自己实现一套repository(将在后续计划再写一篇参考:https://github.com/Arch/UnitOfWork实现Repository的文章),但是由于时间原因后来在nuget中找到了更好更全面的解决方案,暂且利用第三方组件实现repository.

nuget搜索:Microsoft.EntityFrameworkCore.UnitOfWork;源代码:https://github.com/Arch/UnitOfWork

安装到DotNetCore20.Service

在DotNetCore20.Service中添加DemoService.cs和对应的接口IDemoService.cs,目录结构如下:

DemoService.cs:

using DotNetCore20.Entity;using Microsoft.EntityFrameworkCore;using System;using System.Threading.Tasks;namespace DotNetCore20.Service{    public class DemoService : IDemoService    {        private readonly IUnitOfWork _unitOfWork;        public DemoService(IUnitOfWork unitOfWork)        {            _unitOfWork = unitOfWork;        }        public async Task<UserExtend> Meth()        {            var repo = _unitOfWork.GetRepository<UserExtend>();            var value = await repo.FindAsync();            return value;        }    }}

IDemoService:

using DotNetCore20.Entity;using Microsoft.EntityFrameworkCore;using System;using System.Threading.Tasks;namespace DotNetCore20.Service{    public interface IDemoService    {        Task<UserExtend> Meth();    }}

 Startup.cs中注册相关服务:

在Startup中的ConfigureServices方法中添加以下行:

//Customer's services            services.AddUnitOfWork<DotNetCoreDbContext>();//注册数据仓储            services.AddScoped(typeof(IDemoService), typeof(DemoService));//注册service,为了避免都要在此声明,所以之后会统一注册DotNetCore20.Service下的所有service

 

 完整Startup如下:

using System;using System.Collections.Generic;using System.Linq;using System.Threading.Tasks;using Microsoft.AspNetCore.Builder;using Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore;using Microsoft.AspNetCore.Identity;using Microsoft.AspNetCore.Http;using Microsoft.EntityFrameworkCore;using Microsoft.AspNetCore.Hosting;using Microsoft.Extensions.Configuration;using Microsoft.Extensions.DependencyInjection;using Microsoft.Extensions.Options;using DotNetCore20.Web.Data;using DotNetCore20.Web.Models;using DotNetCore20.Web.Services;using DotNetCore20.DAL.DbContext;using DotNetCore20.Service;namespace DotNetCore20.Web{    public class Startup    {        public Startup(IConfiguration configuration)        {            Configuration = configuration;        }        public IConfiguration Configuration { get; }        // This method gets called by the runtime. Use this method to add services to the container.        public void ConfigureServices(IServiceCollection services)        {            services.AddDbContext<ApplicationDbContext>(options =>                options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));            //自定义数据库连接字符串            services.AddDbContext<DotNetCoreDbContext>(options =>                options.UseSqlServer(Configuration.GetConnectionString("DotNetCoreConnection")));            services.AddIdentity<ApplicationUser, IdentityRole>()                .AddEntityFrameworkStores<ApplicationDbContext>()                .AddDefaultTokenProviders();            // Add application services.            services.AddTransient<IEmailSender, AuthMessageSender>();            services.AddTransient<ISmsSender, AuthMessageSender>();            //Customer's services            services.AddUnitOfWork<DotNetCoreDbContext>();            services.AddScoped(typeof(IDemoService), typeof(DemoService));            services.AddMvc();        }        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.        public void Configure(IApplicationBuilder app, IHostingEnvironment env)        {            if (env.IsDevelopment())            {                app.UseDeveloperExceptionPage();                app.UseBrowserLink();                app.UseDatabaseErrorPage();            }            else            {                app.UseExceptionHandler("/Home/Error");            }            app.UseStaticFiles();            app.UseAuthentication();            app.UseMvc(routes =>            {                routes.MapRoute(                    name: "default",                    template: "{controller=Home}/{action=Index}/{id?}");            });        }    }}

Startup

 

HomeController:

在Controller的HomeController中的构造函数中添加以下代码:

  public class HomeController : Controller    {        private IDemoService _demoService { get; set; }        public HomeController(IDemoService demoService)        {            _demoService = demoService;        }}

使用Service

public IActionResult Index()        {            _demoService.Meth();            return View();        }

在此大功告成,点击即可