---
title: Server-sent events
slug: Web/API/Server-sent_events
translation_of: Web/API/Server-sent_events
---
<p>網頁一般來說是由客戶端向伺服器請求資料. 藉由 server-sent 事件, 伺服器在任何時候都可以向客戶端推送資料. 即將推送進來的訊息可以自客戶端上做 <em><a href="/en-US/docs/DOM/event" title="DOM/Event">Events</a> + data </em>處理.</p>

<table class="topicpage-table">
 <tbody>
  <tr>
   <td>
    <h2 class="Documentation" id="Documentation" name="Documentation">文件</h2>

    <dl>
     <dt>使用 <a href="/en-US/docs/Server-sent_events/Using_server-sent_events" title="Server-sent events/Using server-sent events">server-sent events</a></dt>
     <dd>有關如何在伺服器端和客戶端使用 server-sent 事件的教學文章.</dd>
     <dt>參考 <a href="/en-US/docs/Server-sent_events/EventSource" title="Server-sent events/EventSource">EventSource</a></dt>
     <dd>關於客戶端的 EventSource API.</dd>
    </dl>

    <p><span class="alllinks"><a href="/en-US/docs/tag/Server-sent_events" title="tag/Server-sent events">瀏覽全部...</a></span></p>
   </td>
   <td>
    <h2 class="Tools" id="Tools" name="Tools">工具</h2>

    <ul>
     <li>Remy Sharp’s <a class="link-https" href="https://github.com/remy/polyfills/blob/master/EventSource.js">EventSource polyfill</a></li>
     <li>Yaffle’s <a class="link-https" href="https://github.com/Yaffle/EventSource" title="https://github.com/Yaffle/EventSource">EventSource polyfill</a></li>
     <li>Rick Waldron’s <a class="link-https" href="https://github.com/rwldrn/jquery.eventsource">jquery plugin</a></li>
    </ul>

    <h2 class="Related_Topics" id="Related_Topics" name="Related_Topics">相關主題</h2>

    <ul>
     <li><a href="/en-US/docs/AJAX" title="AJAX">AJAX</a>, <a href="/en-US/docs/JavaScript" title="JavaScript">JavaScript</a>, <a href="/en-US/docs/WebSockets" title="WebSockets">WebSockets</a></li>
    </ul>
   </td>
  </tr>
 </tbody>
</table>

<h2 id="參見">參見</h2>

<ul>
 <li>A <a href="http://hacks.mozilla.org/2011/06/a-wall-powered-by-eventsource-and-server-sent-events/" title="http://hacks.mozilla.org/2011/06/a-wall-powered-by-eventsource-and-server-sent-events/">Twitter like application</a> powered by server-sent events and <a class="link-https" href="https://github.com/mozilla/webowonder-demos/tree/master/demos/friends%20timeline" title="https://github.com/mozilla/webowonder-demos/tree/master/demos/friends timeline">its code on Github</a>.</li>
 <li><a href="http://dsheiko.com/weblog/html5-and-server-sent-events" title="http://dsheiko.com/weblog/html5-and-server-sent-events">HTML5 and Server-sent events</a></li>
 <li><a href="http://rajudasa.blogspot.in/2012/05/html5-server-sent-events-using-aspnet.html" title="http://rajudasa.blogspot.in/2012/05/html5-server-sent-events-using-aspnet.html">Server-sent events using Asp.Net</a></li>
</ul>

<h2 id="規範">規範</h2>

<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('Server-sent events')}}</td>
   <td>{{Spec2('Server-sent events')}}</td>
   <td>Initial definition.</td>
  </tr>
 </tbody>
</table>

<h2 id="瀏覽器相容性">瀏覽器相容性</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</th>
  </tr>
  <tr>
   <td>EventSource support</td>
   <td>9</td>
   <td>{{CompatGeckoDesktop("6.0")}}</td>
   <td>{{CompatUnknown}}</td>
   <td>11</td>
   <td>5</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>EventSource support</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>