---
title: RTCPeerConnection.getDefaultIceServers()
slug: orphaned/Web/API/RTCPeerConnection/getDefaultIceServers
translation_of: Web/API/RTCPeerConnection/getDefaultIceServers
original_slug: Web/API/RTCPeerConnection/getDefaultIceServers
---
<p>{{APIRef("WebRTC")}}{{SeeCompatTable}}</p>

<p>{{domxref("RTCPeerConnection")}} 接口的方法 <code><strong>getDefaultIceServers()</strong></code> 返回一个基于  {{domxref("RTCIceServer")}} 字典的对象数组。如果在 {{domxref("RTCPeerConnection")}} 的 {{domxref("RTCConfiguration")}} 中没有设置，该数组指向浏览器缺省使用的ICE servers，前提是浏览器确实存在缺省的ICE servers。然而，浏览器完全不必提供任何的缺省ICE Servers。</p>

<h2 id="语法">语法</h2>

<pre class="syntaxbox"> var <em>defaultIceServers</em> = <em>RTCPeerConnection</em>.getDefaultIceServers();</pre>

<h3 id="返回值">返回值</h3>

<p>一个 ICE servers 的数组，以基于 {{domxref("RTCIceServer")}} 的对象组成，当没有在 {{domxref("RTCPeerConnection")}} 的设置中进行设置时，浏览器将使用它们。如果浏览器没有提供缺省值，将返回一个空数组，该属性的值永远不是 <code>null</code>。</p>

<h2 id="例子">例子</h2>

<pre class="brush: js">var pc = new RTCPeerConnection();
var iceServers = pc.getDefaultIceServers();

if (iceServers.length === 0) {
  // Deal with the lack of default ICE servers, possibly by using our own defaults
}</pre>

<h2 id="Specifications">Specifications</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td><a href="https://w3c.github.io/webrtc-extensions/#dom-rtcpeerconnection-getdefaulticeservers">WebRTC Extensions</a></td>
   <td></td>
   <td></td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility">Browser compatibility</h2>



<p>{{Compat("api.RTCPeerConnection.getDefaultIceServers")}}</p>

<h2 id="See_also">See also</h2>

<ul>
 <li><a href="/en-US/docs/Web/Guide/API/WebRTC">WebRTC</a></li>
 <li>{{domxref("RTCConfiguration")}}</li>
</ul>