一、常用分布式服务器介绍
推荐用redis在高可用分布式部署比较强而Memcached比较弱而且key有限制
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redis用法
如何注入到 Controller
下面的代码清单展示了如何将 IDistributedCache 注入到 Controller 中并实现从 Redis 中进行插入和读取。
public class DefaultController : Controller { private readonly IDistributedCache _distributedCache; public HomeController(IDistributedCache distributedCache) { _distributedCache = distributedCache; } [HttpGet] public async Task Get() { var cacheKey ="IDG"; var data = _distributedCache.GetString(cacheKey); if (!string.IsNullOrEmpty(data)) { return data; //returned from Cache } else { string str ="Hello World"; _distributedCache.SetString(cacheKey, str); return str; } } }
如何使用 SqlServer 作为缓存介质
要想将 SqlServer 作为底层的缓存介质,需要通过 Nuget 安装如下包:
Install-Package Microsoft.Extensions.Caching.SqlServer
Install-Package Microsoft.Extensions.Caching.SqlConfig.Tools
public void ConfigureServices(IServiceCollection services) { services.AddControllersWithViews(); services.AddDistributedSqlServerCache(x => { x.ConnectionString = Configuration["ConnectionStrings:Default"]; x.SchemaName = "dbo"; x.TableName = "IDGCache"; }); }
接下来通过如下命令在 SqlServer 中生成 Table
来存放缓存数据,代码如下:
dotnet sql-cache create
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