.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;channel)</pre>
<div class="block">Sets the name of the websocket channel. It may not be an Jakarta Expression Language expression and it may only
 contain alphanumeric characters, hyphens, underscores and periods. All open websockets on the same channel will
 receive the same push message from the server.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>channel</code> - The name of t