NetCore 2.0 MVC入門之 Startup 配置
阿新 • • 發佈：2018-12-01
剛接觸netcore, 以下我正在使用的配置說明以及需要注入的幾點
1.我在專案中因為不想使用建構函式注入，所以我引用了第三方的Autofac包來管理我的service,在controller中只需要 建立 public iClass class{get;set;}即可
2.service注入我採用的是dll反射進行注入，
注意如下程式碼 var files = System.IO.Directory.GetFiles(AppContext.BaseDirectory, "*.BLL.dll"); 由於我的業務層都放在BLL中，所以我只需要搜尋根目錄下的BLL檔案進行注入即可
3. 專案中如果使用了Areas ，需要新增以下程式碼
app.UseMvc(routes =>
{
routes.MapRoute(
name: "areaRoute",
template: "{area:exists}/{controller=Home}/{action=Index}/{id?}");//控制器分層
如果需要將areas單獨建成專案，需要在ConfigureServices(IServiceCollection services)中如下程式碼，該程式碼是將子專案中的controller注入到主專案中
#region mvc 區域分專案時呼叫 var manager = new ApplicationPartManager(); files = System.IO.Directory.GetFiles(AppContext.BaseDirectory, "*.Web.dll");//獲取所有的web.dll if (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
在子專案中屬性 ---》生成事件----》後期生成事件中新增如下程式碼
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;
});
//讀取配置檔案
ApplicationEnvironments.Site = Configuration.GetSection("SiteConfig").Get<SiteConfig>();
//httpcontext 如果在dll層需要用到httpContext則需要使用方法
services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
//屬性注入
services.Replace(ServiceDescriptor.Transient<IControllerActivator, ServiceBasedControllerActivator>());
services.AddMvc(config => {
config.Filters.Add<CustomExceptionFilter>();
}
)
//全域性配置Json序列化處理
.AddJsonOptions(options =>
{
//忽略迴圈引用
options.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;
//不使用駝峰樣式的key
options.SerializerSettings.ContractResolver = new DefaultContractResolver();
////設定時間格式
//options.SerializerSettings.DateFormatString = "yyyy-MM-dd";
}
)
.SetCompatibilityVersion(CompatibilityVersion.Version_2_1)
.AddSessionStateTempDataProvider();
#region //身份認證時需要使用的方法
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"); //禁止訪問路徑：當用戶試圖訪問資源時，但未通過該資源的任何授權策略，請求將被重定向到這個相對路徑。
// options.SlidingExpiration = false; //Cookie可以分為永久性的和臨時性的。 臨時性的是指只在當前瀏覽器程序裡有效，瀏覽器一旦關閉就失效（被瀏覽器刪除）。 永久性的是指Cookie指定了一個過期時間，在這個時間到達之前，此cookie一直有效（瀏覽器一直記錄著此cookie的存在）。 slidingExpriation的作用是，指示瀏覽器把cookie作為永久性cookie儲存，但是會自動更改過期時間，以使使用者不會在登入後並一直活動，但是一段時間後卻自動登出。也就是說，你10點登入了，伺服器端設定的TimeOut為30分鐘，如果slidingExpriation為false,那麼10:30以後，你就必須重新登入。如果為true的話，你10:16分時打開了一個新頁面，伺服器就會通知瀏覽器，把過期時間修改為10:46。 更詳細的說明還是參考MSDN的文件。
});
#endregion
ApplicationEnvironments.DefaultSession = new BaseController();
//資料庫驅動注入
if (ApplicationEnvironments.Site.IsUseEF)
{
services.AddScoped<IDbRepository, EFRepository>();
}
else
{
services.AddScoped<IDbRepository, AdoRepository>();
}
//快取注入
if (ApplicationEnvironments.Site.IsUseRedis)
{
services.AddSingleton<ICacheService,RedisService>();
}
else
{
services.AddSingleton<ICacheService,MemoryService>();
}
//service 層注入
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 屬性注入
var builder = new Autofac.ContainerBuilder();
builder.Populate(services);
#region mvc 區域分專案時呼叫
var manager = new ApplicationPartManager();
files = System.IO.Directory.GetFiles(AppContext.BaseDirectory, "*.Web.dll");//獲取所有的web.dll
if (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
//採用屬性注入控制器
builder.RegisterTypes(feature.Controllers.Select(ti => ti.AsType()).ToArray()).PropertiesAutowired();
this.ApplicationContainer = builder.Build();
return new AutofacServiceProvider(this.ApplicationContainer);
#endregion
//跨域訪問
//services.AddCors(options => options.AddPolicy("AllowSameDomain", builder => builder.WithOrigins("http://a.local.com:50307", "http://b.local.com:63455")));
//跨域認證時使用此項
//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");//錯誤處理
//app.UseErrorHandling();
app.UseMvc(routes =>
{
routes.MapRoute(
name: "areaRoute",
template: "{area:exists}/{controller=Home}/{action=Index}/{id?}");//控制器分層
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}"
);
});
//新增httpcontext類
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錯誤內碼表
}
}