没有废话，直接上代码

/// <summary>/// 启动类/// </summary>public static class Mains{static IServiceCollection _services;static IMvcBuilder _mvc;public static WebApplicationBuilder Main(this WebApplicationBuilder builder,IMvcBuilder mvc=null){_services = builder.Services;_mvc = mvc;// 增加Http组件_services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();//在请求生命周期内，可以读取//web服务器信息，包括域名，客户端ip 等Web._service = _services;//读取appsetting.config内容  AppSettings.ConfigItems["xx"]/AppSettings.ConfigItems["a:b"]AppSettings.ConfigItems = builder.Configuration;//添加 cookie 静态类Cookies.serviceCollection = builder.Services;//自动批量注册服务AddService();//单独注册某个服务，特殊情况_services.AddSingleton<Ixxx,xxx>();//添加拦截器_services.AddControllersWithViews(x =>{//全局返回，统一返回格式x.Filters.Add<ResAttribute>();//全局日志，报错x.Filters.Add<LogAttribute>();//全局身份验证x.Filters.Add<TokenAttribute>();});//式化响应_services.AddControllers().AddJsonOptions(options =>{//时间格式化响应options.JsonSerializerOptions.Converters.Add(new JsonOptionsDate("yyyy-MM-dd HH:mm:ss"));//int格式化响应options.JsonSerializerOptions.Converters.Add(new JsonOptionsInt());//禁止字符串被转义成Unicodeoptions.JsonSerializerOptions.Encoder = JavaScriptEncoder.Create(UnicodeRanges.All);});//swagger 设置_services.AddSwaggerGen(c =>{//请求头参数输入框设置c.OperationFilter<OptionHeaderFilter>();//文档描述c.SwaggerDoc("v1", new OpenApiInfo{Title = "service",Version = "0.0.1",Description = "文档描述"});//添加接口和实体的注释var path = AppContext.BaseDirectory;//Path.GetDirectoryName(typeof(Program).Assembly.Location);var api = Path.Combine(path, "api.xml");c.IncludeXmlComments(api, true);c.OrderActionsBy(o => o.RelativePath);});//跨域设置//var WithOrigins = AppSettings.ConfigItems["WithOrigins"]?.Split(";");//域名白名单//允许跨域_services.AddCors(policy =>{/** 可以在控制器处添加* [EnableCors("CorsPolicy")]*/policy.AddPolicy("CorsPolicy", opt => opt.AllowAnyOrigin().AllowAnyHeader().AllowAnyMethod()//#if !DEBUG//                .WithOrigins(WithOrigins)//域名白名单//#endif.WithExposedHeaders("X-Pagination"));});#region  请求大小设置builder.WebHost.UseKestrel(options =>{options.Limits.MaxRequestLineSize = int.MaxValue;//HTTP 请求行的最大允许大小。 默认为 8kboptions.Limits.MaxRequestBufferSize = int.MaxValue;//请求缓冲区的最大大小。 默认为 1M//任何请求正文的最大允许大小（以字节为单位）,默认 30,000,000 字节，大约为 28.6MBoptions.Limits.MaxRequestBodySize = int.MaxValue;//限制请求长度});/* ↓↓↓↓↓↓↓ 使用iis/nginx ↓↓↓↓↓↓ */_services.Configure<FormOptions>(x =>{x.ValueCountLimit = 1000000; // 设置表单键值对的最大数量x.ValueLengthLimit = int.MaxValue;// 设置表单数据长度限制为int的最大值x.MultipartBodyLengthLimit = int.MaxValue; // 设置多部分正文的长度限制为int的最大值//x.MultipartHeadersCountLimit = 100; // 设置多部分表单头的最大数量//x.MultipartHeadersLengthLimit = 16384; // 设置多部分表单头的最大长度（bytes）});#endregionreturn builder;}/// <summary>/// 注册服务/// </summary>public static void AddService(){//加载插件dll，否则GetAllAssembly（）读取不到，可以实现简单的插件化，只在启动时读取一次，后续不影响性能//这里也可以放到 GetAllAssembly 方法的开头// Mods  插件文件夹var mods_dll = Directory.GetFiles("Mods", "*.dll");foreach (var mod in mods_dll){Assembly.LoadFrom(mod);}var allAssembly = GetAllAssembly().Where(x => x.GetName().Name != "Microsoft.Data.SqlClient").ToList();//插件文件夹下面的dllvar mods = allAssembly.Where(x => x.Location.Contains("\\Mods")).ToList();foreach (var item in mods){// 添加插件的控制器，可以实现简单的插件化_mvc.AddApplicationPart(item);}#region 注入服务// 筛选继承了 ITransient 接口的类型var _transient = allAssembly.SelectMany(t => t.GetTypes()).Where(x => x.GetInterface("ITransient") != null).ToList();_transient.AddTransient();// 筛选继承了 IScoped 接口的类型var _scoped = allAssembly.SelectMany(t => t.GetTypes()).Where(x => x.GetInterface("IScoped") != null).ToList();_scoped.AddScoped();// 筛选继承了 ISingleton 接口的类型var _singleton = allAssembly.SelectMany(t => t.GetTypes()).Where(x => x.GetInterface("ISingleton") != null).ToList();_singleton.AddSingleton();#endregion}#region 注入服务方法/// <summary>/// 添加瞬时服务/// </summary>/// <param name="list"></param>public static void AddTransient(this List<Type> list){foreach (var item in list){_services.AddTransient(item);}}/// <summary>/// 添加请求范围服务/// </summary>/// <param name="list"></param>public static void AddScoped(this List<Type> list){foreach (var item in list){_services.AddScoped(item);}}/// <summary>/// 添加单列服务/// </summary>/// <param name="list"></param>public static void AddSingleton(this List<Type> list){foreach (var item in list){_services.AddSingleton(item);}}#endregion#region 注入服务方法/// <summary>/// 添加瞬时服务/// </summary>/// <param name="list"></param>public static void AddTransient(this List<Type> list){foreach (var item in list){_services.AddTransient(item);}}/// <summary>/// 添加请求范围服务/// </summary>/// <param name="list"></param>public static void AddScoped(this List<Type> list){foreach (var item in list){_services.AddScoped(item);}}/// <summary>/// 添加单列服务/// </summary>/// <param name="list"></param>public static void AddSingleton(this List<Type> list){foreach (var item in list){_services.AddSingleton(item);}}#endregion/// <summary>/// 获取全部 Assembly/// </summary>/// <returns></returns>private static List<Assembly> GetAllAssembly(){var allAssemblies = AppDomain.CurrentDomain.GetAssemblies().ToList();HashSet<string> loadedAssemblies = new();foreach (var item in allAssemblies){loadedAssemblies.Add(item.FullName!);}Queue<Assembly> assembliesToCheck = new();assembliesToCheck.Enqueue(Assembly.GetEntryAssembly()!);while (assembliesToCheck.Any()){var assemblyToCheck = assembliesToCheck.Dequeue();foreach (var reference in assemblyToCheck!.GetReferencedAssemblies()){if (!loadedAssemblies.Contains(reference.FullName)){try{var assembly = Assembly.Load(reference);assembliesToCheck.Enqueue(assembly);loadedAssemblies.Add(reference.FullName);allAssemblies.Add(assembly);}catch (Exception ex){Console.WriteLine(ex.Message);}}}}return allAssemblies;}/// <summary>/// app扩展/// </summary>/// <param name="app"></param>/// <returns></returns>public static WebApplication AppMain(this WebApplication app){//全局允许跨域app.UseCors("CorsPolicy");app.UseStaticFiles();return app;}}

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