From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001
From: Peter Bengtsson <mail@peterbe.com>
Date: Tue, 8 Dec 2020 14:40:17 -0500
Subject: initial commit

---
 .../eventsource/onopen/index.html                  | 123 +++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 files/zh-cn/server-sent_events/eventsource/onopen/index.html

(limited to 'files/zh-cn/server-sent_events/eventsource/onopen/index.html')

diff --git a/files/zh-cn/server-sent_events/eventsource/onopen/index.html b/files/zh-cn/server-sent_events/eventsource/onopen/index.html
new file mode 100644
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@@ -0,0 +1,123 @@
+---
+title: EventSource.onopen
+slug: Server-sent_events/EventSource/onopen
+tags:
+  - API
+  - Event Handler
+  - EventSource
+translation_of: Web/API/EventSource/onopen
+---
+<div>{{APIRef('WebSockets API')}}</div>
+
+<p>{{domxref("EventSource")}}接口的 <code><strong>onopen</strong></code> 属性是一个 {{domxref("EventHandler")}} ，它在收到{{event("open")}} 事件时被调用，在那时，连接刚被打开。</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">eventSource.onopen = function</pre>
+
+<h2 id="示例">示例</h2>
+
+<pre class="brush: js">evtSource.onopen = function() {
+  console.log("Connection to server opened.");
+};</pre>
+
+<div class="note">
+<p><strong>注意</strong> ：你可以在 GitHub 上看到一个完整的示例— 请看 <a href="https://github.com/mdn/dom-examples/tree/master/server-sent-events">使用php的SSE(服务器发送事件)demo。</a></p>
+</div>
+
+<h2 id="规范">规范</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('HTML WHATWG', "comms.html#handler-eventsource-onopen", "onopen")}}</td>
+   <td>{{Spec2('HTML WHATWG')}}</td>
+   <td>Initial definition</td>
+  </tr>
+ </tbody>
+</table>
+
+<ul>
+</ul>
+
+<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>Edge</th>
+   <th>Firefox (Gecko)</th>
+   <th>Internet Explorer</th>
+   <th>Opera</th>
+   <th>Safari</th>
+  </tr>
+  <tr>
+   <td>支持EventSource</td>
+   <td>6</td>
+   <td>{{CompatNo}}</td>
+   <td>{{CompatGeckoDesktop("6.0")}}</td>
+   <td>{{CompatNo}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>5</td>
+  </tr>
+  <tr>
+   <td>在共享和专用的 workers上可用<sup>[1]</sup></td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatNo}}</td>
+   <td>{{CompatGeckoDesktop("53.0")}}</td>
+   <td>{{CompatNo}}</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>Firefox Mobile (Gecko)</th>
+   <th>IE Mobile</th>
+   <th>Opera Mobile</th>
+   <th>Safari Mobile</th>
+  </tr>
+  <tr>
+   <td>支持EventSource</td>
+   <td>4.4</td>
+   <td>45</td>
+   <td>{{CompatNo}}</td>
+   <td>12</td>
+   <td>4.1</td>
+  </tr>
+  <tr>
+   <td>在共享和专用的 workers上可用 <sup>[1]</sup></td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoMobile("53.0")}}</td>
+   <td>{{CompatNo}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<p>[1] 但 <a href="https://github.com/w3c/ServiceWorker/issues/947">目前不能在service workers上使用</a>.</p>
+
+<h2 id="相关链接">相关链接</h2>
+
+<ul>
+ <li>{{domxref("EventSource")}}</li>
+</ul>
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