为什么office 365登录缓存显示空值？

嗨，为什么office 365登录缓存显示空值？

我正在办公室365登录访问日历，我已经将服务添加到我的项目，它工作正常没有任何问题，我已清除我的数据库，并再次运行我无法获得的项目日历事件，它是不可访问的，因为缓存显示空值，我又添加了服务，但它仍然显示缓存的空值，你可以请任何人帮我解决这个问题，我给我下面的代码。

 UserTokenCache Cache; 

     // constructor 
     public ADALTokenCache(string user) 
     { 
      // associate the cache to the current user of the web app 
      User = user; 
      this.AfterAccess = AfterAccessNotification; 
      this.BeforeAccess = BeforeAccessNotification; 
      this.BeforeWrite = BeforeWriteNotification; 


      // look up the entry in the DB 
      Cache = db.UserTokenCacheList.FirstOrDefault(c => c.webUserUniqueId == User); 
      // place the entry in memory 
      this.Deserialize((Cache == null) ? null : Cache.cacheBits); 
     } 



     AuthorizationCodeReceived = (context) => 
         { 

          var code = context.Code; 

          ClientCredential credential = new ClientCredential(SettingsHelper.ClientId, SettingsHelper.ClientSecret); 
          String UserObjectId = context.AuthenticationTicket.Identity.FindFirst(ClaimTypes.NameIdentifier).Value; 

          AuthenticationContext authContext = new AuthenticationContext(SettingsHelper.Authority, new ADALTokenCache(UserObjectId)); 

          authContext.AcquireTokenByAuthorizationCode(code, new Uri(HttpContext.Current.Request.Url.GetLeftPart(UriPartial.Path)), credential, SettingsHelper.AADGraphResourceId); 

          return Task.FromResult(0); 
         },

感谢，
KARTHIK

来源

2016-04-15 karthik