path: root/files/zh-cn/web/api/cache/addall/index.html

---
title: Cache.addAll()
slug: Web/API/Cache/addAll
translation_of: Web/API/Cache/addAll
---
<p>{{APIRef("Service Workers API")}}{{SeeCompatTable}}</p>

<h2 id="概要">概要</h2>

<p>{{domxref("Cache")}} 接口的 <strong><code>addAll()</code></strong> 方法接受一个URL数组，检索它们，并将生成的response对象添加到给定的缓存中。 在检索期间创建的request对象成为存储的response操作的key。</p>

<div class="note">
<p><strong>Note</strong>: <code>addAll()</code> will overwrite any key/value pairs previously stored in the cache that match the request, but will fail if a resulting <code>put()</code> operation would overwrite a previous cache entry created by the same <code>addAll()</code> method.</p>
</div>

<div class="note">
<p><strong>Note</strong>: Initial Cache implementations (in both Blink and Gecko) resolve {{domxref("Cache.add")}}, {{domxref("Cache.addAll")}}, and {{domxref("Cache.put")}} promises when the response body is fully written to storage.  More recent spec versions have newer language stating that the browser can resolve the promise as soon as the entry is recorded in the database even if the response body is still streaming in.</p>
</div>

<h2 id="语法">语法</h2>

<pre class="brush: js">cache.addAll(requests[]).then(function() {
  //requests have been added to the cache
});
</pre>

<h3 id="参数">参数</h3>

<dl>
 <dt>requests</dt>
 <dd>要获取并添加到缓存的字符串URL数组。</dd>
</dl>

<h3 id="返回值">返回值</h3>

<p>A {{jsxref("Promise")}} that resolves with void.</p>

<h3 id="Exceptions">Exceptions</h3>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col"><strong>Exception</strong></th>
   <th scope="col"><strong>Happens when</strong></th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td><code>TypeError</code></td>
   <td>
    <p>The URL scheme is not <code>http</code> or <code>https</code>.</p>

    <p>The Response status is not in the 200 range (i.e., not a successful response.) This occurs if the request does not return successfully, but also if the request is a <em>cross-origin no-cors</em> request (in which case the reported status is always 0.)</p>
   </td>
  </tr>
 </tbody>
</table>

<h2 id="示例"><span style="font-size: 30px;">示例</span></h2>

<p>此代码块等待一个 {{domxref("InstallEvent")}} 事件触发，然后运行 {{domxref("ExtendableEvent.waitUntil","waitUntil")}} 来处理该应用程序的安装进程。 包括调用 {{domxref("CacheStorage.open")}} 创建一个新的cache，然后使用 <code>addAll()</code> 添加一系列资源。</p>

<pre class="brush: js">this.addEventListener('install', function(event) {
  event.waitUntil(
    caches.open('v1').then(function(cache) {
      return cache.addAll([
        '/sw-test/',
        '/sw-test/index.html',
        '/sw-test/style.css',
        '/sw-test/app.js',
        '/sw-test/image-list.js',
        '/sw-test/star-wars-logo.jpg',
        '/sw-test/gallery/',
        '/sw-test/gallery/bountyHunters.jpg',
        '/sw-test/gallery/myLittleVader.jpg',
        '/sw-test/gallery/snowTroopers.jpg'
      ]);
    })
  );
});
</pre>

<h3 id="规范">规范</h3>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
  <tr>
   <td>{{SpecName('Service Workers', '#cache', 'Cache')}}</td>
   <td>{{Spec2('Service Workers')}}</td>
   <td>Initial definition.</td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</h2>

<div>{{CompatibilityTable}}</div>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari (WebKit)</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatChrome(46.0)}}</td>
   <td>{{CompatVersionUnknown}}<sup>[1]</sup></td>
   <td>{{CompatNo}}</td>
   <td>24</td>
   <td>{{CompatNo}}</td>
  </tr>
  <tr>
   <td>Require HTTPS</td>
   <td>{{CompatChrome(46.0)}}</td>
   <td>{{CompatVersionUnknown}}<sup>[1]</sup></td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
  <tr>
   <td><code>TypeError</code> if request is not successful</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoDesktop(47.0)}}<sup>[1]</sup></td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Android Webview</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>Firefox OS</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
   <th>Chrome for Android</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatChrome(46.0)}}</td>
  </tr>
  <tr>
   <td>Require HTTPS</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatChrome(46.0)}}</td>
  </tr>
  <tr>
   <td><code>TypeError</code> if request is not successful</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<p>[1] Service workers (and <a href="/en-US/docs/Web/API/Push_API">Push</a>) have been disabled in the <a href="https://www.mozilla.org/en-US/firefox/organizations/">Firefox 45 &amp; 52 Extended Support Releases</a> (ESR.)</p>

<h2 id="参见">参见</h2>

<ul>
 <li><a href="https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker_API/Using_Service_Workers">Using Service Workers</a></li>
 <li>{{domxref("Cache")}}</li>
 <li>{{domxref("WorkerGlobalScope.caches")}}</li>
</ul>