HybridCache 混合缓存-编程知识

HybridCache 混合缓存

news/2025/3/1 22:23:52/文章来源:https://www.cnblogs.com/axzxs2001/p/18745533

　　asp.net core 9中，引入了HyBridCache，本质上他并不是全新的一种缓存，而以与原来的缓存复合使用。

<Project Sdk="Microsoft.NET.Sdk.Web"><PropertyGroup><TargetFramework>net9.0</TargetFramework><Nullable>enable</Nullable><ImplicitUsings>enable</ImplicitUsings></PropertyGroup><ItemGroup><PackageReference Include="Microsoft.Extensions.Caching.StackExchangeRedis" Version="9.0.0-preview.4.24267.6" /></ItemGroup>
</Project>

　　下面的例子，time0是内存缓存，time1是基于Redis分布式缓存，time3是混合式缓存。

　　如果说time0，time1是自己当家做主的话，那么tim2就要基于Memory或Distributed缓存了。默认状况下，builder.Services.AddHybridCache是基于内存缓存的，如果想基于别的分布式缓存，只需要添加对应的Service就可以了。

using Microsoft.Extensions.Caching.Distributed;
using Microsoft.Extensions.Caching.Hybrid;
using Microsoft.Extensions.Caching.Memory;var builder = WebApplication.CreateBuilder(args);builder.Services.AddMemoryCache();builder.Services.AddStackExchangeRedisCache(opt =>
{opt.ConfigurationOptions = new StackExchange.Redis.ConfigurationOptions{EndPoints = { "localhost:6379" },AbortOnConnectFail = false};
});
builder.Services.AddHybridCache();var app = builder.Build();app.MapGet("/time0", async (IMemoryCache cache) =>
{return await cache.GetOrCreateAsync("time0", async _ => await Task.FromResult(DateTime.Now));
});app.MapGet("/time1", async (IDistributedCache cache) =>
{var time = await cache.GetStringAsync("time1");if (string.IsNullOrWhiteSpace(time)){time = DateTime.Now.ToString();await cache.SetStringAsync("time1", time);}return time;
});app.MapGet("/time2", async (HybridCache cache) =>
{return await cache.GetOrCreateAsync("time2", async _ => await Task.FromResult(DateTime.Now));});
app.Run();