feat: 首页增加内存缓存(30s TTL)
- 新增 internal/cache/home_cache.go,实现带 TTL 的首页文章列表内存缓存 - frontend.go 首页 handler 优先读取缓存,未命中/过期时查询 DB 并回填 - PostService 注入失效回调,在 Create/Update/Delete/Approve 后自动失效缓存 - 减少首页每次请求都查 DB 的开销
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@ -1,6 +1,9 @@
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package router
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import (
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"time"
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"metazone.cc/metalab/internal/cache"
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"metazone.cc/metalab/internal/config"
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"metazone.cc/metalab/internal/controller"
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adminCtrl "metazone.cc/metalab/internal/controller/admin"
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@ -99,6 +102,10 @@ func buildDeps(db *gorm.DB, cfg *config.Config, siteSettings *config.SiteSetting
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maintenanceMdw := middleware.NewMaintenanceMiddleware(cfg, siteSettings, sessionMgr)
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// 首页内存缓存(30s TTL),文章变更时失效
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homeCache := cache.NewHomePageCache(30 * time.Second)
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postService.WithHomePageInvalidator(func() { homeCache.Invalidate() })
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return &dependencies{
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authCtrl: authCtrl, authMdw: authMdw, maintenanceMdw: maintenanceMdw,
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settingsCtrl: settingsCtrl,
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@ -119,5 +126,6 @@ func buildDeps(db *gorm.DB, cfg *config.Config, siteSettings *config.SiteSetting
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favoriteCtrl: favoriteCtrl,
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favoriteService: favoriteService,
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trendsService: trendsService,
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homeCache: homeCache,
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}
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}
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