子组件调用封装的websocket报错

Uncaught DOMException: An attempt was made to use an object that is not, or is no longer, usable
子组件调用封装的websocket，报以上错误，求问题分析

https://stackoverflow.com/questions/64488266/web-socket-problem-with-javascript-and-java-uncaught-domexception-an-attempt

由于在建立和打开与 webSocket 服务器的连接之前执行了 websocket.send()，我收到了相同的错误消息。