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.NET使用分布式缓存(SQL Server 示例)Session

文章参考:https://docs.microsoft.com/zh-cn/aspnet/core/performance/caching/distributed?view=aspnetcore-3.1 .NET Core 3.1

比较关键的一点是创建表(注:在使用Session的时候,Session值也会存在缓存当中

第一步,命令行运行,添加工具:

>dotnet tool install --global dotnet-sql-cache

 如果报错,类似下面的,说明是版本没有对上,我之前是3.1.5安装3.1.9出现,按照提示更新一下就好

It was not possible to find any compatible framework version
The framework 'Microsoft.NETCore.App', version '3.1.9' was not found.

111

第二步,命令行创建缓存表

dotnet sql-cache create "Data Source=xxx.xxx.xxx.xxx;Initial Catalog=XX;User ID=XX;Password=XXX" dbo 表名

 

 

 检查一下就完成了。

第三步,代码中的扩展,先NuGet安装 Microsoft.Extensions.Caching.Abstractions、Microsoft.Extensions.Caching.SqlServer

            services.AddDistributedSqlServerCache(options =>
            {
                options.ConnectionString =
                    Configuration["DB:DistCache_ConnectionString"];//数据库链接
                options.SchemaName = "dbo";
                options.TableName = "CacheTb";//表名
            });

  测试,先注入:

        private IDistributedCache _cache;
        public TestController(IDistributedCache cache)
        {
            _cache = cache;
        }

  action调用与输出:

 public IActionResult Info() {
            _cache.Set("test", Encoding.UTF8.GetBytes("1q1q"));
            var h=this.Request.Headers;
            var str = "Info\r\n";
            foreach (var s in h) {
                str += s.Key + ":" + s.Value + "\r\n";
            }
            return Content(str);
        }
        public IActionResult Info2()
        {
            var h = this.Request.Headers;
            var str = "Info2\r\n";
            foreach (var s in h)
            {
                str += s.Key + ":" + s.Value + "\r\n";
            }
            str += "cache:" + Encoding.UTF8.GetString(_cache.Get("test")); 
            return Content(str);
        }

结果,大功告成:

 

 

扩展补充:Microsoft.Extensions.Caching.StackExchangeRedis和Microsoft.Extensions.Caching.Redis的区别

从依赖看,Microsoft.Extensions.Caching.StackExchangeRedis比Microsoft.Extensions.Caching.Redis使用的StackExchange高,且Microsoft.Extensions.Caching.Redis的组件已经完成使命不在更新

使用新的.NETCore的Redis扩展,要用新的!

posted @ 2020-11-02 10:21  FourOne  阅读(615)  评论(0编辑  收藏  举报