mirror of
https://github.com/harttle/liquidjs.git
synced 2026-09-15 12:20:40 -07:00
207 lines
19 KiB
HTML
207 lines
19 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="zh-cn">
|
|
<head prefix="og: http://ogp.me/ns#">
|
|
<meta charset="utf-8">
|
|
<title>缓存 | LiquidJS</title>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
<meta name="description" content="LiquidJS is a simple, expressive and safe Shopify / Github Pages compatible template engine in pure JavaScript.">
|
|
<link rel="dns-prefetch" href="https://cdn.jsdelivr.net/">
|
|
<link rel="manifest" href="/zh-cn/manifest.json">
|
|
<!-- Canonical links -->
|
|
<link rel="canonical" href="https://liquidjs.com/zh-cn/tutorials/caching.html">
|
|
<!-- Alternative links -->
|
|
|
|
|
|
<link rel="alternative" hreflang="en" href="https://liquidjs.com/zh-cn/tutorials/caching">
|
|
|
|
<link rel="alternative" hreflang="zh-cn" href="https://liquidjs.com/zh-cn/zh-cn/tutorials/caching">
|
|
|
|
|
|
<!-- Icon -->
|
|
<link rel="apple-touch-icon" sizes="57x57" href="../../icon/apple-touch-icon-57x57.png">
|
|
<link rel="apple-touch-icon" sizes="114x114" href="../../icon/apple-touch-icon-114x114.png">
|
|
<link rel="apple-touch-icon" sizes="72x72" href="../../icon/apple-touch-icon-72x72.png">
|
|
<link rel="apple-touch-icon" sizes="144x144" href="../../icon/apple-touch-icon-144x144.png">
|
|
<link rel="apple-touch-icon" sizes="60x60" href="../../icon/apple-touch-icon-60x60.png">
|
|
<link rel="apple-touch-icon" sizes="120x120" href="../../icon/apple-touch-icon-120x120.png">
|
|
<link rel="apple-touch-icon" sizes="76x76" href="../../icon/apple-touch-icon-76x76.png">
|
|
<link rel="apple-touch-icon" sizes="152x152" href="../../icon/apple-touch-icon-152x152.png">
|
|
<link rel="icon" type="image/png" href="../../icon/favicon-196x196.png" sizes="196x196">
|
|
<link rel="icon" type="image/png" href="../../icon/favicon-160x160.png" sizes="160x160">
|
|
<link rel="icon" type="image/png" href="../../icon/favicon-96x96.png" sizes="96x96">
|
|
<link rel="icon" type="image/png" href="../../icon/favicon-16x16.png" sizes="16x16">
|
|
<link rel="icon" type="image/png" href="../../icon/favicon-32x32.png" sizes="32x32">
|
|
<meta name="msapplication-TileColor" content="#2f83cd">
|
|
<meta name="msapplication-TileImage" content="../../icon/mstile-144x144.png">
|
|
|
|
<link rel="stylesheet" href="../../css/navy.css">
|
|
|
|
<link rel="alternate" href="../../atom.xml" title="LiquidJS" type="application/atom+xml">
|
|
<meta name="generator" content="Hexo 5.4.0"></head>
|
|
|
|
<body>
|
|
<div id="container">
|
|
<header id="header" class="wrapper">
|
|
<div id="header-inner" class="inner">
|
|
<h1 id="logo-wrap">
|
|
<a href="/zh-cn/" id="logo">LiquidJS</a>
|
|
</h1>
|
|
<nav id="main-nav">
|
|
<a href="intro-to-liquid.html" class="main-nav-link">教程</a><a href="../tags/overview.html" class="main-nav-link">标签</a><a href="../filters/overview.html" class="main-nav-link">过滤器</a><a href="../playground.html" class="main-nav-link">演示</a><a href="../api/classes/Liquid.html" class="main-nav-link">API</a>
|
|
<div id="search-input-wrap">
|
|
<i id="search-input-icon" class="icon-search"></i>
|
|
<input type="search" id="search-input" placeholder="搜索...">
|
|
</div>
|
|
</nav>
|
|
<div class="main-nav-link icon-nav-link">
|
|
<label><i class="icon-network"></i> <span class="icon-nav-title">简体中文</span></label>
|
|
<select id="lang-select" data-canonical="tutorials/caching.html">
|
|
|
|
<option value="en">English</option>
|
|
|
|
<option value="zh-cn" selected>简体中文</option>
|
|
|
|
</select>
|
|
</div>
|
|
<a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs" class="main-nav-link icon-nav-link"><i class="icon-github"></i> <span class="icon-nav-title">Github</span></a>
|
|
<a target="_blank" rel="noopener external nofollow noreferrer" href="https://opencollective.com/liquidjs" class="main-nav-link icon-nav-link"><i class="icon-opencollective"></i> <span class="icon-nav-title">Support</span></a>
|
|
<a id="mobile-nav-toggle">
|
|
<span class="mobile-nav-toggle-bar"></span>
|
|
<span class="mobile-nav-toggle-bar"></span>
|
|
<span class="mobile-nav-toggle-bar"></span>
|
|
</a>
|
|
</div>
|
|
</header>
|
|
|
|
<div id="content-wrap">
|
|
<div id="content" class="wrapper">
|
|
<div id="content-inner">
|
|
<aside id="sidebar" role="navigation">
|
|
<div class="inner">
|
|
<strong class="sidebar-title">开始使用</strong><a href="intro-to-liquid.html" class="sidebar-link">Liquid 简介</a><a href="setup.html" class="sidebar-link">安装</a><a href="options.html" class="sidebar-link">选项</a><a href="render-file.html" class="sidebar-link">文件渲染</a><a href="partials-and-layouts.html" class="sidebar-link">引用/继承</a><a href="use-in-expressjs.html" class="sidebar-link">Express.js 中使用</a><strong class="sidebar-title">高级主题</strong><a href="caching.html" class="sidebar-link current">缓存</a><a href="register-filters-tags.html" class="sidebar-link">注册标签/过滤器</a><a href="access-scope-in-filters.html" class="sidebar-link">过滤器里访问上下文</a><a href="parse-parameters.html" class="sidebar-link">参数解析</a><a href="render-tag-content.html" class="sidebar-link">渲染标签内容</a><a href="sync-and-async.html" class="sidebar-link">同步和异步</a><a href="whitespace-control.html" class="sidebar-link">换行和缩进</a><a href="plugins.html" class="sidebar-link">插件</a><a href="operators.html" class="sidebar-link">运算符</a><a href="truthy-and-falsy.html" class="sidebar-link">真和假</a><strong class="sidebar-title">其他</strong><a href="migrate-to-9.html" class="sidebar-link">迁移到 LiquidJS 9</a><a href="changelog.html" class="sidebar-link">更新日志</a><a href="differences.html" class="sidebar-link">与 Shopify/liquid 的不同</a><a href="contribution-guidelines.html" class="sidebar-link">贡献指南</a>
|
|
</div>
|
|
</aside>
|
|
<article class="article-container" itemscope itemtype="http://schema.org/Article">
|
|
<div class="article-inner">
|
|
<div class="article">
|
|
<div class="inner">
|
|
<header class="article-header">
|
|
<h1 class="article-title" itemprop="name">缓存</h1>
|
|
|
|
<a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/edit/master/docs/source/zh-cn/tutorials/caching.md" class="article-edit-link" title="改进这篇文档"><i class="icon-pencil"></i></a>
|
|
|
|
</header>
|
|
<div class="article-content" itemprop="articleBody">
|
|
<p>在典型的网站项目中，同一个模板文件可能会反复地用不同数据去渲染。在生产环境下模板文件的内容不太会发生变化（除非重新部署了服务），因此可以把从磁盘读取的文件内容和解析得到的模板结构（AST）缓存下来重复使用来节省渲染时间。</p>
|
|
<p>LiquidJS 在这一方面比较灵活，提供了多种不同的方式来达到提升性能的目的。</p>
|
|
<h2 id="手动缓存" class="article-heading"><a href="#手动缓存" class="headerlink" title="手动缓存"></a>手动缓存<a class="article-anchor" href="#手动缓存" aria-hidden="true"></a></h2><p><a href="/api/classes/Liquid.html#parse">.parse()</a>, <a href="/api/classes/Liquid.html#parseFile">.parseFile()</a>, <a href="/api/classes/Liquid.html#parseFileSync">.parseFileSync()</a> API 可以用来把字符串或文件解析成模板。得到的模板可以用不同的数据去重复地渲染得到不同的 HTML。</p>
|
|
<p>从字符串解析：</p>
|
|
<pre class="line-numbers language-javascript" data-language="javascript"><code class="language-javascript"><span class="token keyword">var</span> tpl <span class="token operator">=</span> engine<span class="token punctuation">.</span><span class="token function">parse</span><span class="token punctuation">(</span><span class="token string">'{{name | capitalize}}'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
|
|
|
engine<span class="token punctuation">.</span><span class="token function">renderSync</span><span class="token punctuation">(</span>tpl<span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'alice'</span><span class="token punctuation">}</span><span class="token punctuation">)</span> <span class="token comment">// 'Alice'</span>
|
|
engine<span class="token punctuation">.</span><span class="token function">renderSync</span><span class="token punctuation">(</span>tpl<span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'bob'</span><span class="token punctuation">}</span><span class="token punctuation">)</span> <span class="token comment">// 'Bob'</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span></span></code></pre>
|
|
|
|
<p>从文件解析：</p>
|
|
<pre class="line-numbers language-javascript" data-language="javascript"><code class="language-javascript"><span class="token keyword">var</span> tpl <span class="token operator">=</span> engine<span class="token punctuation">.</span><span class="token function">parseFileSync</span><span class="token punctuation">(</span><span class="token string">'hello'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// contents of `hello.liquid`: {{name}}</span>
|
|
|
|
engine<span class="token punctuation">.</span><span class="token function">renderSync</span><span class="token punctuation">(</span>tpl<span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'alice'</span><span class="token punctuation">}</span><span class="token punctuation">)</span> <span class="token comment">// 'Alice'</span>
|
|
engine<span class="token punctuation">.</span><span class="token function">renderSync</span><span class="token punctuation">(</span>tpl<span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'bob'</span><span class="token punctuation">}</span><span class="token punctuation">)</span> <span class="token comment">// 'Bob'</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span></span></code></pre>
|
|
|
|
<p>上述代码中字符串或文件只被解析了一次，可以反复利用去渲染不同的数据。有很多模板文件时可以把 <code>tpl</code> 变量存在 <code>Map</code> 中，后续再 <code>.render()</code> 时直接从 Map 中拿出解析好的模板去渲染。</p>
|
|
<h2 id="cache-选项" class="article-heading"><a href="#cache-选项" class="headerlink" title="cache 选项"></a><code>cache</code> 选项<a class="article-anchor" href="#cache-选项" aria-hidden="true"></a></h2><p>如果你只用 <code>.renderFile()</code> 和 <code>.renderFileSync()</code> 也可以直接设置 <a href="/api/interfaces/LiquidOptions.html#cache">cache</a> 选项，LiquidJS 会帮你缓存。</p>
|
|
<pre class="line-numbers language-javascript" data-language="javascript"><code class="language-javascript"><span class="token keyword">var</span> <span class="token punctuation">{</span> Liquid <span class="token punctuation">}</span> <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'liquidjs'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
|
<span class="token keyword">var</span> engine <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Liquid</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
|
|
<span class="token literal-property property">cache</span><span class="token operator">:</span> <span class="token boolean">true</span>
|
|
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
|
|
|
<span class="token comment">// LiquidJS 将会解析 hello.liquid 然后用 {name: 'alice'} 渲染它</span>
|
|
engine<span class="token punctuation">.</span><span class="token function">renderFileSync</span><span class="token punctuation">(</span><span class="token string">'hello'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'alice'</span><span class="token punctuation">}</span><span class="token punctuation">)</span>
|
|
|
|
<span class="token comment">// LiquidJS 会找到上次 hello.liquid 解析的结果模板，再用 {name: 'bob'} 渲染它</span>
|
|
engine<span class="token punctuation">.</span><span class="token function">renderFileSync</span><span class="token punctuation">(</span><span class="token string">'hello'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'bob'</span><span class="token punctuation">}</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
|
|
|
|
|
|
</div>
|
|
<footer class="article-footer">
|
|
<time class="article-footer-updated" datetime="2023-06-03T18:24:33.900Z" itemprop="dateModified">上次更新：2023-06-03</time>
|
|
<a href="use-in-expressjs.html" class="article-footer-prev" title="Express.js 中使用"><i class="icon-chevron-left"></i><span>上一页</span></a><a href="register-filters-tags.html" class="article-footer-next" title="注册标签/过滤器"><span>下一页</span><i class="icon-chevron-right"></i></a>
|
|
</footer>
|
|
</div>
|
|
</div>
|
|
<aside id="article-toc" role="navigation">
|
|
<div id="article-toc-inner">
|
|
<div id="article-toc-inner-list">
|
|
<strong class="sidebar-title">目录</strong>
|
|
<ol class="toc"><li class="toc-item toc-level-2"><a class="toc-link" href="#%E6%89%8B%E5%8A%A8%E7%BC%93%E5%AD%98"><span class="toc-text">手动缓存</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#cache-%E9%80%89%E9%A1%B9"><span class="toc-text">cache 选项</span></a></li></ol>
|
|
</div>
|
|
<a href="#" id="article-toc-top">回到顶部</a>
|
|
</div>
|
|
</aside>
|
|
</div>
|
|
</article>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<footer id="footer" class="wrapper">
|
|
<div class="inner">
|
|
<div id="footer-copyright">
|
|
© 2023 <a href="https://github.com/harttle/liquidjs/graphs/contributors" rel="external nofollow noreferrer" target="_blank">Harttle</a><br>
|
|
本文档通过 <a href="http://creativecommons.org/licenses/by/4.0/" rel="external nofollow noreferrer" target="_blank">CC BY 4.0</a> 授权。
|
|
</div>
|
|
<div id="footer-links">
|
|
<a href="https://twitter.com/harttleharttle" rel="external nofollow noreferrer" class="footer-link" target="_blank"><i class="icon-twitter"></i></a>
|
|
<a href="https://www.patreon.com/harttle" rel="external nofollow noreferrer" class="footer-link" target="_blank"><i class="icon-patreon"></i></a>
|
|
<a href="https://opencollective.com/liquidjs" rel="external nofollow noreferrer" class="footer-link" target="_blank"><i class="icon-opencollective"></i></a>
|
|
<a href="https://github.com/harttle/liquidjs" rel="external nofollow noreferrer" class="footer-link" target="_blank"><i class="icon-github"></i></a>
|
|
</div>
|
|
</div>
|
|
</footer>
|
|
|
|
</div>
|
|
<div id="mobile-nav-dimmer"></div>
|
|
<nav id="mobile-nav">
|
|
<div id="mobile-nav-inner">
|
|
<ul id="mobile-nav-list">
|
|
<a href="intro-to-liquid.html" class="mobile-nav-link">教程</a><a href="../tags/overview.html" class="mobile-nav-link">标签</a><a href="../filters/overview.html" class="mobile-nav-link">过滤器</a><a href="../playground.html" class="mobile-nav-link">演示</a><a href="../api/classes/Liquid.html" class="mobile-nav-link">API</a>
|
|
</ul>
|
|
|
|
<div class="mobile-sidebar-list">
|
|
<strong class="mobile-nav-title">开始使用</strong><a href="intro-to-liquid.html" class="mobile-nav-link">Liquid 简介</a><a href="setup.html" class="mobile-nav-link">安装</a><a href="options.html" class="mobile-nav-link">选项</a><a href="render-file.html" class="mobile-nav-link">文件渲染</a><a href="partials-and-layouts.html" class="mobile-nav-link">引用/继承</a><a href="use-in-expressjs.html" class="mobile-nav-link">Express.js 中使用</a><strong class="mobile-nav-title">高级主题</strong><a href="caching.html" class="mobile-nav-link current">缓存</a><a href="register-filters-tags.html" class="mobile-nav-link">注册标签/过滤器</a><a href="access-scope-in-filters.html" class="mobile-nav-link">过滤器里访问上下文</a><a href="parse-parameters.html" class="mobile-nav-link">参数解析</a><a href="render-tag-content.html" class="mobile-nav-link">渲染标签内容</a><a href="sync-and-async.html" class="mobile-nav-link">同步和异步</a><a href="whitespace-control.html" class="mobile-nav-link">换行和缩进</a><a href="plugins.html" class="mobile-nav-link">插件</a><a href="operators.html" class="mobile-nav-link">运算符</a><a href="truthy-and-falsy.html" class="mobile-nav-link">真和假</a><strong class="mobile-nav-title">其他</strong><a href="migrate-to-9.html" class="mobile-nav-link">迁移到 LiquidJS 9</a><a href="changelog.html" class="mobile-nav-link">更新日志</a><a href="differences.html" class="mobile-nav-link">与 Shopify/liquid 的不同</a><a href="contribution-guidelines.html" class="mobile-nav-link">贡献指南</a>
|
|
</div>
|
|
|
|
</div>
|
|
<div id="mobile-button-list">
|
|
<a href="https://github.com/harttle/liquidjs" class="mobile-nav-link" rel="external" target="_blank"><i class="icon-github"></i></a>
|
|
<a href="https://opencollective.com/liquidjs" class="mobile-nav-link" rel="external" target="_blank"><i class="icon-opencollective"></i></a>
|
|
<div id="mobile-lang-select-wrap" class="mobile-nav-link">
|
|
<label for="mobile-lang-select"><i class="icon-network"></i></label>
|
|
<select id="mobile-lang-select" data-canonical="tutorials/caching.html">
|
|
|
|
<option value="en">English</option>
|
|
|
|
<option value="zh-cn" selected>简体中文</option>
|
|
|
|
</select>
|
|
</div>
|
|
</div>
|
|
</nav>
|
|
|
|
|
|
|
|
<script src="../../js/main.js"></script>
|
|
|
|
|
|
<script src="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.js"></script>
|
|
<script>
|
|
document.getElementById('search-input-wrap').classList.add('on');
|
|
docsearch({
|
|
apiKey: '01f36cc168657a26a385308b9e721bc6',
|
|
indexName: 'liquidjs',
|
|
inputSelector: '#search-input',
|
|
debug: false
|
|
});
|
|
</script>
|
|
</body>
|
|
</html> |