# wx.sendSocketMessage ### wx.sendSocketMessage(Object object) 通过 WebSocket 连接发送数据，需要先 wx.connectSocket，并在 wx.onSocketOpen 回调之后才能发送。 #### 参数 ##### Object object 属性类型默认值是否必填说明支持版本datastring/ArrayBuffer是需要发送的内容successfunction否接口调用成功的回调函数failfunction否接口调用失败的回调函数completefunction否接口调用结束的回调函数（调用成功、失败都会执行）#### 示例代码 ``` <pre class="prettyprint"><ol class="linenums"><li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="kwd">const</span><span class="pln"> socketOpen </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">false</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="kwd">const</span><span class="pln"> socketMsgQueue </span><span class="pun">=</span><span class="pln"> </span><span class="pun">[]</span></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln">wx</span><span class="pun">.</span><span class="pln">connectSocket</span><span class="pun">({</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> url</span><span class="pun">:</span><span class="pln"> </span><span class="str">'test.php'</span></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pun">})</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln">wx</span><span class="pun">.</span><span class="pln">onSocketOpen</span><span class="pun">(</span><span class="hljs-params"><span class="kwd">function</span></span><span class="pun">(</span><span class="hljs-params"><span class="pln">res</span></span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> socketOpen </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">true</span></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> </span><span class="kwd">for</span><span class="pln"> </span><span class="pun">(</span><span class="pln">let i </span><span class="pun">=</span><span class="pln"> </span><span class="lit">0</span><span class="pun">;</span><span class="pln"> i </span><span class="pun"><</span><span class="pln"> socketMsgQueue</span><span class="pun">.</span><span class="pln">length</span><span class="pun">;</span><span class="pln"> i</span><span class="pun">++){</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> sendSocketMessage</span><span class="pun">(</span><span class="pln">socketMsgQueue</span><span class="pun">[</span><span class="pln">i</span><span class="pun">])</span></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> </span><span class="pun">}</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> socketMsgQueue </span><span class="pun">=</span><span class="pln"> </span><span class="pun">[]</span></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pun">})</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="hljs-params"><span class="kwd">function</span></span><span class="pln"> </span><span class="hljs-params"><span class="pln">sendSocketMessage</span></span><span class="pun">(</span><span class="hljs-params"><span class="pln">msg</span></span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> </span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(</span><span class="pln">socketOpen</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> wx</span><span class="pun">.</span><span class="pln">sendSocketMessage</span><span class="pun">({</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> data</span><span class="pun">:</span><span class="pln">msg</span></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> </span><span class="pun">})</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="kwd">else</span><span class="pln"> </span><span class="pun">{</span></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> socketMsgQueue</span><span class="pun">.</span><span class="pln">push</span><span class="pun">(</span><span class="pln">msg</span><span class="pun">)</span></code></li> <li class="l1"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pln"> </span><span class="pun">}</span></code></li> <li class="l"><code class="pcalibre9 pcalibre8 pcalibre7"><span class="pun">}</span></code></li> </ol> ``` > 原文: <https://developers.weixin.qq.com/minigame/dev/api/network/websocket/wx.sendSocketMessage.html>