其实算是转载的,自己封装了一下,忘记了转载链接了 import { Injectable } from '@angular/core'; @Injectable({ providedIn: 'root' }) export class WebsocketService { public ws: WebSocket;//定义websocket connectWs(websocket: string) { if (this.ws != null) { this.ws.close() }; this.ws = new WebSocket(websocket); l