刚接触netcore, 以下我正在使用的配置说明以及需要注入的几点

1.我在项目中因为不想使用构造函数注入，所以我引用了第三方的Autofac包来管理我的service,在controller中只需要 创建 public iClass class{get;set;}即可

2.service注入我采用的是dll反射进行注入，

注意如下代码  var files = System.IO.Directory.GetFiles(AppContext.BaseDirectory, "*.BLL.dll"); 由于我的业务层都放在BLL中，所以我只需要搜索根目录下的BLL文件进行注入即可

3. 项目中如果使用了Areas ，需要添加以下代码

  app.UseMvc(routes =>{routes.MapRoute(name: "areaRoute",template: "{area:exists}/{controller=Home}/{action=Index}/{id?}");//控制器分层

如果需要将areas单独建成项目，需要在ConfigureServices(IServiceCollection services)中如下代码，该代码是将子项目中的controller注入到主项目中

            #region  mvc 区域分项目时调用var manager = new ApplicationPartManager();files = System.IO.Directory.GetFiles(AppContext.BaseDirectory, "*.Web.dll");//获取所有的web.dllif (files != null && files.Length > 0){foreach (var file in files){manager.ApplicationParts.Add(new AssemblyPart(Assembly.LoadFrom(file)));}}manager.FeatureProviders.Add(new ControllerFeatureProvider());var feature = new ControllerFeature();manager.PopulateFeature(feature);#endregion

在子项目中属性 ---》生成事件----》后期生成事件中添加如下代码

mkdir "$(SolutionDir)$(SolutionName).Web\Areas\｛AreaName｝\Views"
xcopy "$(ProjectDir)Views" "$(SolutionDir)$(SolutionName).Web\Areas\｛AreaName｝\Views" /S /E /C /Y

public class Startup{public Startup(IConfiguration configuration){Configuration = configuration;}public IConfiguration Configuration { get; }public Autofac.IContainer ApplicationContainer;// This method gets called by the runtime. Use this method to add services to the container.public IServiceProvider ConfigureServices(IServiceCollection services){services.Configure<CookiePolicyOptions>(options =>{// This lambda determines whether user consent for non-essential cookies is needed for a given request.options.CheckConsentNeeded = context => true;options.MinimumSameSitePolicy = SameSiteMode.None;});//读取配置文件ApplicationEnvironments.Site = Configuration.GetSection("SiteConfig").Get<SiteConfig>();//httpcontext 如果在dll层需要用到httpContext则需要使用方法services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();//属性注入services.Replace(ServiceDescriptor.Transient<IControllerActivator, ServiceBasedControllerActivator>());services.AddMvc(config => {config.Filters.Add<CustomExceptionFilter>();})//全局配置Json序列化处理.AddJsonOptions(options =>{//忽略循环引用options.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;//不使用驼峰样式的keyoptions.SerializerSettings.ContractResolver = new DefaultContractResolver();设置时间格式//options.SerializerSettings.DateFormatString = "yyyy-MM-dd";}).SetCompatibilityVersion(CompatibilityVersion.Version_2_1).AddSessionStateTempDataProvider();#region  //身份认证时需要使用的方法services.AddSession(options=> {options.Cookie.HttpOnly = true;options.Cookie.Name = ApplicationEnvironments.Site.CookieName;options.Cookie.SecurePolicy = CookieSecurePolicy.SameAsRequest;options.IdleTimeout = TimeSpan.FromMinutes(ApplicationEnvironments.Site.SessionTimeout);});services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme).AddCookie(CookieAuthenticationDefaults.AuthenticationScheme, options =>{options.DataProtectionProvider= DataProtectionProvider.Create(new DirectoryInfo(AppDomain.CurrentDomain.BaseDirectory+ "/shared-auth-ticket-keys/"));options.Cookie.Name = ApplicationEnvironments.Site.CookieName;options.Cookie.Path = "/";options.LoginPath = new PathString("/login");options.AccessDeniedPath = new PathString("/Forbidden"); //禁止访问路径：当用户试图访问资源时，但未通过该资源的任何授权策略，请求将被重定向到这个相对路径。// options.SlidingExpiration = false;  //Cookie可以分为永久性的和临时性的。 临时性的是指只在当前浏览器进程里有效，浏览器一旦关闭就失效（被浏览器删除）。 永久性的是指Cookie指定了一个过期时间，在这个时间到达之前，此cookie一直有效（浏览器一直记录着此cookie的存在）。 slidingExpriation的作用是，指示浏览器把cookie作为永久性cookie存储，但是会自动更改过期时间，以使用户不会在登录后并一直活动，但是一段时间后却自动注销。也就是说，你10点登录了，服务器端设置的TimeOut为30分钟，如果slidingExpriation为false,那么10:30以后，你就必须重新登录。如果为true的话，你10:16分时打开了一个新页面，服务器就会通知浏览器，把过期时间修改为10:46。 更详细的说明还是参考MSDN的文档。});#endregionApplicationEnvironments.DefaultSession = new BaseController();//数据库驱动注入if (ApplicationEnvironments.Site.IsUseEF){services.AddScoped<IDbRepository, EFRepository>();}else{services.AddScoped<IDbRepository, AdoRepository>();}//缓存注入if (ApplicationEnvironments.Site.IsUseRedis){services.AddSingleton<ICacheService,RedisService>();}else{services.AddSingleton<ICacheService,MemoryService>();}//service 层注入var files = System.IO.Directory.GetFiles(AppContext.BaseDirectory, "*.BLL.dll");if (files != null && files.Length > 0){foreach (var file in files){foreach (var item in GetClassName(file)){foreach (var typeArray in item.Value){services.AddScoped(typeArray, item.Key);}}}}#region AutoFac 属性注入 var builder = new Autofac.ContainerBuilder();builder.Populate(services);#region  mvc 区域分项目时调用var manager = new ApplicationPartManager();files = System.IO.Directory.GetFiles(AppContext.BaseDirectory, "*.Web.dll");//获取所有的web.dllif (files != null && files.Length > 0){foreach (var file in files){manager.ApplicationParts.Add(new AssemblyPart(Assembly.LoadFrom(file)));}}manager.FeatureProviders.Add(new ControllerFeatureProvider());var feature = new ControllerFeature();manager.PopulateFeature(feature);#endregion//采用属性注入控制器builder.RegisterTypes(feature.Controllers.Select(ti => ti.AsType()).ToArray()).PropertiesAutowired();this.ApplicationContainer = builder.Build();return new AutofacServiceProvider(this.ApplicationContainer);#endregion//跨域访问//services.AddCors(options => options.AddPolicy("AllowSameDomain", builder => builder.WithOrigins("http://a.local.com:50307", "http://b.local.com:63455")));//跨域认证时使用此项//services.AddCors(options => options.AddPolicy("AllowSameDomain", builder => builder.WithOrigins("http://a.local.com:50307", "http://b.local.com:63455").AllowCredentials()));}private static Dictionary<Type, Type[]> GetClassName(string assemblyName){if (!String.IsNullOrEmpty(assemblyName)){Assembly assembly = Assembly.LoadFrom(assemblyName);List<Type> ts = assembly.GetTypes().ToList();var result = new Dictionary<Type, Type[]>();foreach (var item in ts.Where(s => !s.IsInterface)){var interfaceType = item.GetInterfaces();if (item.IsGenericType) continue;result.Add(item, interfaceType);}return result;}return new Dictionary<Type, Type[]>();}// 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.UseBrowserLink();//app.UseDeveloperExceptionPage();ApplicationEnvironments.IsDevelopment = true;}else{//app.UseExceptionHandler("/Home/Error");//app.UseHsts();ApplicationEnvironments.IsDevelopment = false;}app.UseHttpsRedirection();app.UseStaticFiles();//app.UseSpaStaticFiles();app.UseCookiePolicy();app.UseSession();app.UseAuthentication();app.UseExceptionHandler("/Home/Error");//错误处理//app.UseErrorHandling();app.UseMvc(routes =>{routes.MapRoute(name: "areaRoute",template: "{area:exists}/{controller=Home}/{action=Index}/{id?}");//控制器分层routes.MapRoute(name: "default",template: "{controller=Home}/{action=Index}/{id?}");});//添加httpcontext类AppHttpContext.Configure(app.ApplicationServices.GetRequiredService<Microsoft.AspNetCore.Http.IHttpContextAccessor>());//nginx反向代理app.UseForwardedHeaders(new ForwardedHeadersOptions{ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto});app.UseAuthentication();app.UseStatusCodePages();//使用HTTP错误代码页}}