#region JWT 认证

            services

              .AddAuthentication(JwtBearerDefaults.AuthenticationScheme)

              //.AddCustomAuth(o => { })

              .AddJwtBearer(options => {

                  options.TokenValidationParameters = new TokenValidationParameters {

                      ValidIssuer = Configuration["JwtSetting:Issuer"],

                      ValidAudience = Configuration["JwtSetting:Audience"],

                      IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["JwtSetting:SecurityKey"])),

                      // 默认允许 300s  的时间偏移量，设置为0

                      ClockSkew = TimeSpan.Zero

                  };

              });

            #endregion

            #region MVC修改控制器描述

            services.AddHttpContextAccessor();

            services.Replace(ServiceDescriptor.Transient<IControllerActivator, ServiceBasedControllerActivator>());

            services.AddMvc(config => {

                config.RespectBrowserAcceptHeader = true;

                //注入MVC拦截器

                config.Filters.Add<ApiFilter>();

            })

            .AddJsonOptions(options => options.SerializerSettings.ContractResolver = new ContractResolver())

            .AddJsonOptions(options => options.SerializerSettings.Converters.Add(new ChinaDateTimeConverter()))

            .AddFormatterMappings(options => options.SetMediaTypeMappingForFormat("xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"))

            .AddFormatterMappings(options => options.SetMediaTypeMappingForFormat("jpeg", "image/jpeg"))

            .AddFormatterMappings(options => options.SetMediaTypeMappingForFormat("jpg", "image/jpeg"));

　　　　　　　#endregion

            app.UseAuthentication();

            app.UseMvc();