rxthinkcmf-wiki/RXThinkCMF_Laravel13_EleVue/.vitepress/dist/assets/zh_architecture_cache.md.BcDBCO52.lean.js

import{_ as a,o as e,c as i,a2 as n}from"./chunks/framework.B-QBKwc1.js";const k=JSON.parse('{"title":"缓存架构设计","description":"项目采用两级缓存架构：请求级缓存（内存）+ 持久缓存（Cache 门面，默认 Redis），大幅减少数据库查询；数据变更时由 Observer 自动失效对应缓存，保证一致性。","frontmatter":{},"headers":[],"relativePath":"zh/architecture/cache.md","filePath":"zh/architecture/cache.md"}'),t={name:"zh/architecture/cache.md"};function p(l,s,d,c,h,r){return e(),i("div",null,[...s[0]||(s[0]=[n(`<h1 id="_4-8-缓存架构设计" tabindex="-1">4.8 缓存架构设计 <a class="header-anchor" href="#_4-8-缓存架构设计" aria-label="Permalink to &quot;4.8 缓存架构设计&quot;">​</a></h1><div class="tip custom-block"><p class="custom-block-title">概述</p><p>项目采用两级缓存架构：请求级缓存（内存）+ 持久缓存（Cache 门面，默认 Redis），大幅减少数据库查询；数据变更时由 Observer 自动失效对应缓存，保证一致性。</p></div><h2 id="两级缓存架构" tabindex="-1">两级缓存架构 <a class="header-anchor" href="#两级缓存架构" aria-label="Permalink to &quot;两级缓存架构&quot;">​</a></h2><div class="language-text vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">text</span><pre class="shiki shiki-themes dracula-soft vitesse-light vp-code" tabindex="0"><code><span class="line"><span>┌─────────────────────────────────────────────────────────┐</span></span>
<span class="line"><span>│ 第一级：请求级缓存（static 变量）                        │</span></span>
<span class="line"><span>│                                                         │</span></span>
<span class="line"><span>│ 生命周期：单次 HTTP 请求                                 │</span></span>
<span class="line"><span>│ 存储位置：PHP 内存（static $cache）                      │</span></span>
<span class="line"><span>│ 速度：极快（纳秒级）                                     │</span></span>
<span class="line"><span>│                                                         │</span></span>
<span class="line"><span>│ 同一请求内多次查询同一数据，只查一次库或缓存             │</span></span>
<span class="line"><span>└──────────────────────────┬──────────────────────────────┘</span></span>
<span class="line"><span>                           │ 未命中</span></span>
<span class="line"><span>                           ▼</span></span>
<span class="line"><span>┌─────────────────────────────────────────────────────────┐</span></span>
<span class="line"><span>│ 第二级：持久缓存（cache() 门面 / Redis）                 │</span></span>
<span class="line"><span>│                                                         │</span></span>
<span class="line"><span>│ 生命周期：跨请求复用                                     │</span></span>
<span class="line"><span>│ 存储位置：Redis（CACHE_STORE=redis，必需组件）            │</span></span>
<span class="line"><span>│ 速度：快（毫秒级）                                       │</span></span>
<span class="line"><span>│ 有效期：1 小时（3600 秒）                                │</span></span>
<span class="line"><span>│                                                         │</span></span>
<span class="line"><span>│ 跨请求复用，减少数据库压力                               │</span></span>
<span class="line"><span>└──────────────────────────┬──────────────────────────────┘</span></span>
<span class="line"><span>                           │ 未命中</span></span>
<span class="line"><span>                           ▼</span></span>
<span class="line"><span>┌─────────────────────────────────────────────────────────┐</span></span>
<span class="line"><span>│ 数据库查询                                               │</span></span>
<span class="line"><span>│                                                         │</span></span>
<span class="line"><span>│ 查询后同时写入两级缓存                                   │</span></span>
<span class="line"><span>└─────────────────────────────────────────────────────────┘</span></span></code></pre></div><h2 id="使用两级缓存的服务" tabindex="-1">使用两级缓存的服务 <a class="header-anchor" href="#使用两级缓存的服务" aria-label="Permalink to &quot;使用两级缓存的服务&quot;">​</a></h2><table tabindex="0"><thead><tr><th>服务</th><th>缓存键格式</th><th>说明</th></tr></thead><tbody><tr><td><code>DictCacheService</code></td><td><code>dict_{code}</code>（前缀 <code>dict_</code>）</td><td>字典项映射（<code>CACHE_PREFIX = &#39;dict_&#39;</code>，TTL 见 <code>CACHE_TTL</code>）</td></tr><tr><td><code>MenuService</code> 等</td><td>权限/菜单缓存</td><td>角色权限列表（配合 Observer 失效）</td></tr></tbody></table><h2 id="缓存一致性-Observer-自动失效" tabindex="-1">缓存一致性：Observer 自动失效 <a class="header-anchor" href="#缓存一致性-Observer-自动失效" aria-label="Permalink to &quot;缓存一致性：Observer 自动失效&quot;">​</a></h2><p>数据变更时由 Eloquent Observer 精确失效相关缓存（注册于 <code>AppServiceProvider</code>）：</p><table tabindex="0"><thead><tr><th>Observer</th><th>监听模型</th><th>触发动作</th></tr></thead><tbody><tr><td><code>DictItemObserver</code></td><td>字典项</td><td>清除所属字典缓存（<code>dict_{code}</code>）</td></tr><tr><td><code>MenuObserver</code></td><td>菜单</td><td>清除菜单/权限相关缓存</td></tr><tr><td><code>RoleMenuObserver</code></td><td>角色-菜单关系</td><td>清除角色权限缓存</td></tr></tbody></table><div class="language-text vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">text</span><pre class="shiki shiki-themes dracula-soft vitesse-light vp-code" tabindex="0"><code><span class="line"><span>字典项变更 → DictItemObserver → DictCacheService::clearCache(code) → 下次读取回源重建</span></span>
<span class="line"><span>菜单变更   → MenuObserver     → 权限缓存失效                  → 前端刷新菜单后生效</span></span></code></pre></div><div class="tip custom-block"><p class="custom-block-title">设计要点</p><p>缓存写入发生在&quot;读取回源&quot;时，失效只做 <code>forget</code> 不做主动重建——<strong>删除缓存比更新缓存更安全</strong>，避免并发下旧数据回写。</p></div><h2 id="缓存驱动配置" tabindex="-1">缓存驱动配置 <a class="header-anchor" href="#缓存驱动配置" aria-label="Permalink to &quot;缓存驱动配置&quot;">​</a></h2><p><code>.env</code> 配置：</p><div class="language-ini vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ini</span><pre class="shiki shiki-themes dracula-soft vitesse-light vp-code" tabindex="0"><code><span class="line"><span style="--shiki-dark:#7B7F8B;--shiki-light:#A0ADA0;"># Redis 缓存（项目默认，必需）</span></span>
<span class="line"><span style="--shiki-dark:#F286C4;--shiki-light:#1E754F;">CACHE_STORE</span><span style="--shiki-dark:#F286C4;--shiki-light:#999999;">=</span><span style="--shiki-dark:#F6F6F4;--shiki-light:#393A34;">redis</span></span>
<span class="line"><span style="--shiki-dark:#F286C4;--shiki-light:#1E754F;">REDIS_CLIENT</span><span style="--shiki-dark:#F286C4;--shiki-light:#999999;">=</span><span style="--shiki-dark:#F6F6F4;--shiki-light:#393A34;">phpredis</span></span>
<span class="line"><span style="--shiki-dark:#F286C4;--shiki-light:#1E754F;">REDIS_HOST</span><span style="--shiki-dark:#F286C4;--shiki-light:#999999;">=</span><span style="--shiki-dark:#F6F6F4;--shiki-light:#393A34;">127.0.0.1</span></span>
<span class="line"><span style="--shiki-dark:#F286C4;--shiki-light:#1E754F;">REDIS_PORT</span><span style="--shiki-dark:#F286C4;--shiki-light:#999999;">=</span><span style="--shiki-dark:#F6F6F4;--shiki-light:#393A34;">6379</span></span>
<span class="line"><span style="--shiki-dark:#F286C4;--shiki-light:#1E754F;">REDIS_PASSWORD</span><span style="--shiki-dark:#F286C4;--shiki-light:#999999;">=</span><span style="--shiki-dark:#F6F6F4;--shiki-light:#393A34;">null        </span><span style="--shiki-dark:#7B7F8B;--shiki-light:#A0ADA0;"># 设置了 requirepass 时必须同步</span></span></code></pre></div><div class="warning custom-block"><p class="custom-block-title">不要改回 database/file 驱动</p><ul><li><code>CACHE_STORE=database</code>：数据库脚本<strong>不含</strong> Laravel <code>cache</code> 表，会直接报表不存在；</li><li><code>file</code> 驱动：多进程/多服务器环境下无法共享，且本项目 JWT 会话、权限缓存均依赖 Redis；</li><li>会话 / 缓存 / 队列三者统一使用 Redis（<code>SESSION_DRIVER</code> / <code>CACHE_STORE</code> / <code>QUEUE_CONNECTION</code>）。</li></ul></div><h2 id="缓存清除" tabindex="-1">缓存清除 <a class="header-anchor" href="#缓存清除" aria-label="Permalink to &quot;缓存清除&quot;">​</a></h2><div class="language-php vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">php</span><pre class="shiki shiki-themes dracula-soft vitesse-light vp-code" tabindex="0"><code><span class="line"><span style="--shiki-dark:#7B7F8B;--shiki-light:#A0ADA0;">// 清除指定字典缓存（Observer 已自动调用，此处为手动兜底）</span></span>
<span class="line"><span style="--shiki-dark:#97E1F1;--shiki-dark-font-style:italic;--shiki-light:#998418;--shiki-light-font-style:inherit;">DictCacheService</span><span style="--shiki-dark:#F286C4;--shiki-light:#AB5959;">::</span><span style="--shiki-dark:#62E884;--shiki-light:#59873A;">clearCache</span><span style="--shiki-dark:#F6F6F4;--shiki-light:#999999;">(</span><span style="--shiki-dark:#DEE492;--shiki-light:#B5695977;">&#39;</span><span style="--shiki-dark:#E7EE98;--shiki-light:#B56959;">gender</span><span style="--shiki-dark:#DEE492;--shiki-light:#B5695977;">&#39;</span><span style="--shiki-dark:#F6F6F4;--shiki-light:#999999;">);</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-dark:#7B7F8B;--shiki-light:#A0ADA0;">// 清除所有字典缓存</span></span>
<span class="line"><span style="--shiki-dark:#97E1F1;--shiki-dark-font-style:italic;--shiki-light:#998418;--shiki-light-font-style:inherit;">DictCacheService</span><span style="--shiki-dark:#F286C4;--shiki-light:#AB5959;">::</span><span style="--shiki-dark:#62E884;--shiki-light:#59873A;">clearAllCache</span><span style="--shiki-dark:#F6F6F4;--shiki-light:#999999;">();</span></span></code></pre></div><p>对应接口与命令：</p><div class="language-text vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">text</span><pre class="shiki shiki-themes dracula-soft vitesse-light vp-code" tabindex="0"><code><span class="line"><span>GET /api/dict/refreshCache          刷新字典缓存（需认证）</span></span>
<span class="line"><span>php artisan dict:clear-cache        命令行清除字典缓存</span></span>
<span class="line"><span>php artisan config:clear            清除配置缓存（修改 .env 后）</span></span>
<span class="line"><span>php artisan cache:clear             清除全部应用缓存</span></span></code></pre></div><h2 id="Redis-使用全景" tabindex="-1">Redis 使用全景 <a class="header-anchor" href="#Redis-使用全景" aria-label="Permalink to &quot;Redis 使用全景&quot;">​</a></h2><table tabindex="0"><thead><tr><th>用途</th><th>使用方</th><th>说明</th></tr></thead><tbody><tr><td>JWT 双令牌会话</td><td><code>JwtService</code></td><td>refresh_token 存 Redis（支持踢下线、改密全端失效、一次性消费）</td></tr><tr><td>字典缓存</td><td><code>DictCacheService</code></td><td>两级缓存第二级</td></tr><tr><td>权限/菜单缓存</td><td><code>Authenticate</code> 中间件 + Observer</td><td>角色权限列表</td></tr><tr><td>验证码</td><td><code>CaptchaService</code></td><td>图形验证码存取 + IP 限流</td></tr><tr><td>会话/队列</td><td>Laravel 驱动</td><td><code>SESSION_DRIVER</code> / <code>QUEUE_CONNECTION</code></td></tr></tbody></table><p>连接验证：</p><div class="language-bash vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">bash</span><pre class="shiki shiki-themes dracula-soft vitesse-light vp-code" tabindex="0"><code><span class="line"><span style="--shiki-dark:#62E884;--shiki-light:#59873A;">php</span><span style="--shiki-dark:#E7EE98;--shiki-light:#B56959;"> artisan</span><span style="--shiki-dark:#E7EE98;--shiki-light:#B56959;"> tinker</span><span style="--shiki-dark:#BF9EEE;--shiki-light:#A65E2B;"> --execute=</span><span style="--shiki-dark:#DEE492;--shiki-light:#B5695977;">&quot;</span><span style="--shiki-dark:#E7EE98;--shiki-light:#B56959;">try { \\Illuminate\\Support\\Facades\\Redis::setex(&#39;test:key&#39;, 10, &#39;ok&#39;); echo &#39;OK: &#39;.\\Illuminate\\Support\\Facades\\Redis::get(&#39;test:key&#39;); } catch (\\Throwable </span><span style="--shiki-dark:#F286C4;--shiki-light:#A65E2B;">\\$</span><span style="--shiki-dark:#E7EE98;--shiki-light:#B56959;">e) { echo </span><span style="--shiki-dark:#F286C4;--shiki-light:#A65E2B;">\\$</span><span style="--shiki-dark:#E7EE98;--shiki-light:#B56959;">e-&gt;getMessage(); }</span><span style="--shiki-dark:#DEE492;--shiki-light:#B5695977;">&quot;</span></span>
<span class="line"><span style="--shiki-dark:#7B7F8B;--shiki-light:#A0ADA0;"># 输出 OK: ok 即连接正常</span></span></code></pre></div>`,23)])])}const g=a(t,[["render",p]]);export{k as __pageData,g as default};