1.在Configure 方法中添加註冊靜態檔案

   app.UseStaticFiles(new StaticFileOptions
            {
                FileProvider = new PhysicalFileProvider(Path.Combine(Directory.GetCurrentDirectory(), "Logs")),
                RequestPath = "/Logs",
                ContentTypeProvider = provider
            });

2.在Configure 方法中啟用目錄瀏覽

 app.UseDirectoryBrowser(new DirectoryBrowserOptions
            {
                FileProvider = new PhysicalFileProvider( Path.Combine(Directory.GetCurrentDirectory(), "Logs")),
                RequestPath = "/Logs"
            });

3.新增mime型別（Configure ），中文一定要配編碼型別（utf-8）

  // Set up custom content types - associating file extension to MIME type
            var provider = new FileExtensionContentTypeProvider();
            // Add new mappings
            provider.Mappings[".log"] = "text/plain;charset=utf-8";
 

4.呼叫 ConfigureServices 中的 AddDirectoryBrowser方法來新增所需服務：

  /// <summary>
        ///  This method gets called by the runtime. Use this method to add services to the container.
        /// </summary>
        /// <param name="services"></param>
        public void ConfigureServices(IServiceCollection services)
        {
            // 過濾器執行順序 身份-動作-異常
            services.AddMvc(options =>
            {
                // options.Filters.Add<AuthorizationFilters>(); // 新增身份驗證過濾器
                options.Filters.Add<ActionFilter>(); // 添加出動作過濾器
                options.Filters.Add<ExceptionFilter>(); // 添加出異常過濾器 
            });
            // 為在.net core 環境下獲取request.current
            services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();

            StaticHttpContextExtensions.AddHttpContextAccessor(services);
            services.AddDirectoryBrowser();
        }
 

5.啟動測試

6. 詳細參考官方文件，有簡潔開啟方法，不過會開啟預設wwwroot資料夾的檔案目錄瀏覽，我不想開啟該資料夾，所以這裡並未引用