NetCore3.1API的招摇过市UI速度非常慢

Question

我将我们的net core API应用程序从2.1更新到了3.1，Swashback。Asp。NetCore到5.0。0.这是我的启动集：

public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
     string authServerUrl = "http://testserver.com/identityserver4";
         services.AddControllersWithViews();

        services.AddSwaggerGen(c =>
        {
            c.SwaggerDoc("v1", new OpenApiInfo { Version = "v1", Title = "NetCore API V1" });

            // Define the OAuth2.0 scheme that's in use (i.e. Implicit Flow)
            c.AddSecurityDefinition("oauth2", new OpenApiSecurityScheme
            {
                Type = SecuritySchemeType.OAuth2,
                Flows = new OpenApiOAuthFlows
                {
                    AuthorizationCode = new OpenApiOAuthFlow
                    {
                            AuthorizationUrl = new Uri(authServerUrl + "connect/authorize"),
                            TokenUrl = new Uri(authServerUrl + "connect/token"),
                            Scopes = new Dictionary<string, string>
                            {
                                { "netCoreAPI.read", "read permission" },
                                { "netCoreAPI.write", "write permission" }
                            }                        }
                }
            });

            c.AddSecurityRequirement(new OpenApiSecurityRequirement
            {
                {
                    new OpenApiSecurityScheme
                    {
                        Reference = new OpenApiReference { Type = ReferenceType.SecurityScheme, Id = "oauth2" }
                    },
                    new[] { "netCoreAPI.read", "netCoreAPI.write" }
                }
            });
        });
    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }

            app.UseRouting();

            app.UseAuthentication();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });

            app.UseSwagger();
            app.UseSwaggerUI(c =>
            {
                c.SwaggerEndpoint("swagger/v1/swagger.json", "NetCore V1");
                c.EnableDeepLinking();
                c.OAuthClientId("clientId");
                c.OAuthClientSecret("clientSecret");
                c.OAuthAppName("netCoreApp");
                c.OAuthScopeSeparator(" ");
                c.OAuthUsePkce();
            });
        });
    }
}

最初的招摇过市UI显示相对较快。但是，当单击控制器中的某个方法时，需要30秒才能显示“试用”按钮。有没有办法调试这个问题？还是有人有同样的问题？在代码从Swashback 2.5和net core 2.1转换为Swashback 5.0和net core 3.1之前，swagger UI工作得非常快。

Answer 1

允许csproj中的二进制序列化加快了我的速度：

Answer 2

我使用的是“swashback.AspNetCore.SwaggerUI”Version=“5.6.3”，而该版本切换到“swashback.AspNetCore.Newtonsoft”并没有真正起到帮助作用。没有明显的改善。

然后我在Github上列出了这个问题。这是一个已解决的老问题，但在2020年重新开放。在这里，他们解释了招摇过市的用户界面3。x有“漂亮的打印”和“语法高亮显示”，这会导致渲染问题。可以在“招摇过市”配置中关闭：

SwaggerUI({
        syntaxHighlight: {
          activated: false,
          theme: "agate"
        },
        //url: path,
        ....
      });

在。NET Core你也可以访问配置：配置（）中的Setup.cs

app.UseSwagger()
    .UseSwaggerUI(c =>
    {
        c.SwaggerEndpoint("/swagger/v1/swagger.json", "My Web API");
        c.ConfigObject.AdditionalItems.Add("syntaxHighlight", false); //Turns off syntax highlight which causing performance issues...
        c.ConfigObject.AdditionalItems.Add("theme", "agate"); //Reverts Swagger UI 2.x  theme which is simpler not much performance benefit...
    });

Answer 3

你在使用NewtonSoft吗？您需要添加：

Install-Package Swashbuckle.AspNetCore.Newtonsoft -Version 5.1.0

并添加：

services.AddSwaggerGenNewtonsoftSupport();
// explicit opt-in - needs to be placed after AddSwaggerGen()

https://github.com/domaindrivendev/Swashbuckle.AspNetCore#systemtextjson-stj vs newtonsoft