1. 在Startup.cs文件中添加以下代码，以启用Swagger UI的身份验证弹出窗口：

services.AddSwaggerGen(options => { options.SwaggerDoc("v1", new OpenApiInfo { Title = "API Name", Version = "v1" }); options.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme { Description = "JWT Authorization header using the Bearer scheme. Example: "Authorization: Bearer {token}"", Name = "Authorization", In = ParameterLocation.Header, Type = SecuritySchemeType.ApiKey, Scheme = "Bearer" }); options.OperationFilter(); });

2. 创建一个自定义AuthorizeCheckOperationFilter类，并添加以下代码：

public class AuthorizeCheckOperationFilter : IOperationFilter { public void Apply(OpenApiOperation operation, OperationFilterContext context) { var filterPipeline = context.ApiDescription.ActionDescriptor.FilterDescriptors; var isAuthorized = filterPipeline.Select(filterInfo => filterInfo.Filter).Any(filter => filter is AuthorizeFilter); var allowAnonymous = filterPipeline.Select(filterInfo => filterInfo.Filter).Any(filter => filter is IAllowAnonymousFilter);

    if (isAuthorized && !allowAnonymous)
    {
        operation.Responses.Add("401", new OpenApiResponse { Description = "Unauthorized" });
        operation.Responses.Add("403", new OpenApiResponse { Description = "Forbidden" });

        operation.Security = new List
        {
            new OpenApiSecurityRequirement
            {
                {
                    new OpenApiSecurityScheme { Reference = new OpenApiReference { Type = ReferenceType.SecurityScheme, Id = "Bearer" } },
                    new string[] {}
                }
            }
        };
    }
}

}

3. 在SwaggerUI的Configure方法中调用UseSwaggerUI方法，并将DocumentTitle和OAuth2RedirectUrl参数设置为相应的值：

app.UseSwaggerUI(c => { c.RoutePrefix = "swagger"; c.SwaggerEndpoint("/swagger/v1/swagger.json", "API Name"); c.DocumentTitle = "API Name"; c.OAuth2RedirectUrl("http://localhost:port/swagger/oauth2-redirect.html"); });

4. 在身份验证完成后调用Swagger页面时，如果仍未看到身份验证弹出窗口，请关闭SwaggerUI，清除浏览器缓存，重新打开SwaggerUI并尝试重新调用Swagger页面。

注意：此方法默认使用JWT身份验证方案，如果使用其他身份验证方案，请相应更改代码。