.net跨域和输出格式化

using system.web.http;
using system.web.http.cors;
using system.net.http.headers;

namespace webapi
{
    public static class webapiconfig
    {
        public static void register(httpconfiguration config)
        {
            //跨域配置
            config.enablecors(new enablecorsattribute("*", "*", "*"));
            // web api 配置和服务
            config.formatters.jsonformatter.serializersettings.datetimezonehandling = newtonsoft.json.datetimezonehandling.local;// convert all datetime to utc
            config.formatters.jsonformatter.supportedmediatypes.add(new mediatypeheadervalue("text/html"));
            config.formatters.jsonformatter.supportedmediatypes.add(new mediatypeheadervalue("text/xml"));
            config.formatters.jsonformatter.supportedmediatypes.add(new mediatypeheadervalue("text/json"));
            // web api 路由
            config.maphttpattributeroutes();

            config.routes.maphttproute(
                name: "defaultapi",
                routetemplate: "api/{controller}/{id}",
                defaults: new { id = routeparameter.optional }
            );
        }
    }
}