public string ReceiveWXMsg()
        {
            var signature = Request.QueryString["signature"];
            var timestamp = Request.QueryString["timestamp"];
            var echostr = Request.QueryString["echostr"];
            var nonce = Request.QueryString["nonce"];
            Logger.Debug("signature:" + signature);
            Logger.Debug("timestamp:" + timestamp);
            Logger.Debug("nonce:" + nonce);
            Logger.Debug("echostr:" + echostr);
            //验证 
            return echostr;
        }

    public class WxResponseData
    {
        public int asy_error_code { get; set; }

        public string asy_error_msg { get; set; }

        public string create_time { get; set; }

        public string msg_id { get; set; }

        /// <summary>
        /// notify 说明是设备变更
        /// set_resp 说明是设置设备
        /// get_resp 说明获取设备信息
        /// </summary>
        public string msg_type { get; set; }

        public string device_type { get; set; }
        public string device_id { get; set; }
        public object data { get; set; }

        public Service services { get; set; }

        public string user { get; set; }
    }

public class UserWxData
    {
        private WxResponseData _responseData;

        public UserWxData()
        {
            CreateTime = DateTime.Now;
        }
        public DateTime CreateTime { get; set; }
        public TokenResult AccessToken { get; set; }

        public WxResponseData ResponseData
        {
            get { return _responseData??(_responseData=new WxResponseData()); }
            set { _responseData = value; }
        }

        public string OpenId { get; set; }
    }

  private UserWxData getUserWxData()
        {
            var target = _cacheManager.Get<UserWxData>(userKey) ?? new UserWxData();
            return target;
        }

        private string userKey
        {
            get
            {
                return Session.SessionID;
            }
        }

        private void setUserWxData(UserWxData data)
        {
            _cacheManager.Set(userKey, data, 7200);
        }

using System;
using System.Collections.Generic;
using System.Runtime.Caching;
using System.Text.RegularExpressions;

namespace Niqiu.Core.Domain.Common
{
    /// <summary>
    /// Represents a manager for caching between HTTP requests (long term caching)
    /// </summary>
    public partial class MemoryCacheManager : ICacheManager
    {
        protected ObjectCache Cache
        {
            get
            {
                return MemoryCache.Default;
            }
        }
        
        /// <summary>
        /// Gets or sets the value associated with the specified key.
        /// </summary>
        /// <typeparam name="T">Type</typeparam>
        /// <param name="key">The key of the value to get.</param>
        /// <returns>The value associated with the specified key.</returns>
        public virtual T Get<T>(string key)
        {
            return (T)Cache[key];
        }

        /// <summary>
        /// Adds the specified key and object to the cache.
        /// </summary>
        /// <param name="key">key</param>
        /// <param name="data">Data</param>
        /// <param name="cacheTime">Cache time</param>
        public virtual void Set(string key, object data, int cacheTime)
        {
            if (data == null)
                return;

            var policy = new CacheItemPolicy {AbsoluteExpiration = DateTime.Now + TimeSpan.FromMinutes(cacheTime)};
            Cache.Add(new CacheItem(key, data), policy);
        }

        /// <summary>
        /// Gets a value indicating whether the value associated with the specified key is cached
        /// </summary>
        /// <param name="key">key</param>
        /// <returns>Result</returns>
        public virtual bool IsSet(string key)
        {
            return (Cache.Contains(key));
        }

        /// <summary>
        /// Removes the value with the specified key from the cache
        /// </summary>
        /// <param name="key">/key</param>
        public virtual void Remove(string key)
        {
            Cache.Remove(key);
        }

        /// <summary>
        /// Removes items by pattern
        /// </summary>
        /// <param name="pattern">pattern</param>
        public virtual void RemoveByPattern(string pattern)
        {
            var regex = new Regex(pattern, RegexOptions.Singleline | RegexOptions.Compiled | RegexOptions.IgnoreCase);
            var keysToRemove = new List<String>();

            foreach (var item in Cache)
                if (regex.IsMatch(item.Key))
                    keysToRemove.Add(item.Key);

            foreach (string key in keysToRemove)
            {
                Remove(key);
            }
        }

        /// <summary>
        /// Clear all cache data
        /// </summary>
        public virtual void Clear()
        {
            foreach (var item in Cache)
                Remove(item.Key);
        }
    }
}

using System;
using System.Collections;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Web;

namespace Niqiu.Core.Domain.Common
{
    /// <summary>
    /// Represents a manager for caching during an HTTP request (short term caching)
    /// </summary>
    public partial class PerRequestCacheManager : ICacheManager
    {

        /// <summary>
        /// Ctor
        /// </summary>
        /// <param name="context">Context</param>
        //public PerRequestCacheManager(HttpContextBase context)
        //{
        //    this._context = context;
        //}
        
        /// <summary>
        /// Creates a new instance of the NopRequestCache class
        /// </summary>
        protected virtual IDictionary GetItems()
        {
            if (_context != null)
                return _context.Items;

            return null;
        }

        //不用注入
        private HttpContextBase _context
        {
            get { return new HttpContextWrapper(HttpContext.Current); }
        }

        /// <summary>
        /// Gets or sets the value associated with the specified key.
        /// </summary>
        /// <typeparam name="T">Type</typeparam>
        /// <param name="key">The key of the value to get.</param>
        /// <returns>The value associated with the specified key.</returns>
        public virtual T Get<T>(string key)
        {
            var items = GetItems();
            if (items == null)
                return default(T);

            return (T)items[key];
        }

        /// <summary>
        /// Adds the specified key and object to the cache.
        /// </summary>
        /// <param name="key">key</param>
        /// <param name="data">Data</param>
        /// <param name="cacheTime">Cache time</param>
        public virtual void Set(string key, object data, int cacheTime)
        {
            var items = GetItems();
            if (items == null)
                return;

            if (data != null)
            {
                if (items.Contains(key))
                    items[key] = data;
                else
                    items.Add(key, data);
            }
        }

        /// <summary>
        /// Gets a value indicating whether the value associated with the specified key is cached
        /// </summary>
        /// <param name="key">key</param>
        /// <returns>Result</returns>
        public virtual bool IsSet(string key)
        {
            var items = GetItems();
            if (items == null)
                return false;
            
            return (items[key] != null);
        }

        /// <summary>
        /// Removes the value with the specified key from the cache
        /// </summary>
        /// <param name="key">/key</param>
        public virtual void Remove(string key)
        {
            var items = GetItems();
            if (items == null)
                return;

            items.Remove(key);
        }

        /// <summary>
        /// Removes items by pattern
        /// </summary>
        /// <param name="pattern">pattern</param>
        public virtual void RemoveByPattern(string pattern)
        {
            var items = GetItems();
            if (items == null)
                return;

            var enumerator = items.GetEnumerator();
            var regex = new Regex(pattern, RegexOptions.Singleline | RegexOptions.Compiled | RegexOptions.IgnoreCase);
            var keysToRemove = new List<String>();
            while (enumerator.MoveNext())
            {
                if (regex.IsMatch(enumerator.Key.ToString()))
                {
                    keysToRemove.Add(enumerator.Key.ToString());
                }
            }

            foreach (string key in keysToRemove)
            {
                items.Remove(key);
            }
        }

        /// <summary>
        /// Clear all cache data
        /// </summary>
        public virtual void Clear()
        {
            var items = GetItems();
            if (items == null)
                return;

            var enumerator = items.GetEnumerator();
            var keysToRemove = new List<String>();
            while (enumerator.MoveNext())
            {
                keysToRemove.Add(enumerator.Key.ToString());
            }

            foreach (string key in keysToRemove)
            {
                items.Remove(key);
            }
        }
    }
}

 public OpenApiResult SetDevice(string accessToken, RequestData data)
        {
            var url = string.Format(WxDeviceConfig.SetDeviceUrl, accessToken);
            return SendHelp.Send<OpenApiResult>(accessToken, url, data);
        }