LPLocalhostMES/LocalhostMES/Api/Hosting/OwinWebApiStartup.cs

using Newtonsoft.Json;
using Owin;
using System.Web.Http;

namespace LocalhostMES.Api.Hosting
{
    /// <summary>
    /// OWIN 管道配置（与 WPF 的 App 启动逻辑分离）。
    /// </summary>
    public class OwinWebApiStartup
    {
        public void Configuration(IAppBuilder app)
        {
            app.UseCors(Microsoft.Owin.Cors.CorsOptions.AllowAll);

            var config = new HttpConfiguration();
            config.MapHttpAttributeRoutes();
            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{action}/{id}",
                defaults: new { id = RouteParameter.Optional });

            config.Formatters.JsonFormatter.SerializerSettings.ReferenceLoopHandling =
                ReferenceLoopHandling.Ignore;
            config.Formatters.JsonFormatter.SerializerSettings.Formatting =
                Formatting.Indented;

            app.UseWebApi(config);
        }
    }
}