net core2 采坑-- session 缓存

引用 Microsoft.Extensions.Caching.SqlServer 可以设置存在数据库

Microsoft.Extensions.Caching.Redis 存在redis

参考 

http://www.cnblogs.com/hantianwei/p/5723959.html

// Microsoft SQL Server implementation of IDistributedCache.
// Note that this would require setting up the session state database.
services.AddDistributedSqlServerCache(o =>
{
o.ConnectionString = "Server=.;Database=ASPNET5SessionState;Trusted_Connection=True;";
o.SchemaName = "dbo";
o.TableName = "Sessions";
});

数据库表 结构：

CREATE TABLE [dbo].[CacheTable](
    [Id] [nvarchar](449) NOT NULL,
    [Value] [varbinary](max) NOT NULL,
    [ExpiresAtTime] [datetimeoffset](7) NOT NULL,
    [SlidingExpirationInSeconds] [bigint] NULL,
    [AbsoluteExpiration] [datetimeoffset](7) NULL,
 CONSTRAINT [pk_Id] PRIMARY KEY CLUSTERED 
(
    [Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, 
       IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, 
       ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
 
CREATE NONCLUSTERED INDEX [Index_ExpiresAtTime] ON [dbo].[CacheTable]
(
    [ExpiresAtTime] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, 
       SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, 
       ONLINE = OFF, ALLOW_ROW_LOCKS = ON, 
       ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
参考： http://gunnarpeipman.com/2017/04/aspnet-core-sql-server-cache/

老外还是很靠谱