Asp.net Core 源码-SessionExtensions

using Microsoft.AspNetCore.Http;
using Newtonsoft.Json;

namespace SportsStore.Infrastructure {

    public static class SessionExtensions {

        public static void SetJson(this ISession session, string key, object value) {
            session.SetString(key, JsonConvert.SerializeObject(value));
        }

        public static T GetJson<T>(this ISession session, string key) {
            var sessionData = session.GetString(key);
            return sessionData == null
                 ? default(T) : JsonConvert.DeserializeObject<T>(sessionData);
        }
    }
}