vue使用websocket及封裝

1. 創建websocket.js

const WSS_URL = `wss://wss.xxxx.com/ws?appid=xxx`
let Socket = ''
let setIntervalWesocketPush = null

 // 建立連接
export function createSocket() {
  if (!Socket) {
    console.log('建立websocket連接')
    Socket = new WebSocket(WSS_URL)
    Socket.onopen = onopenWS
    Socket.onmessage = onmessageWS
    Socket.onerror = onerrorWS
    Socket.onclose = oncloseWS
  } else {
    console.log('websocket已連接')
  }
}
// 打開WS之後發送心跳
export function onopenWS() {
  sendPing() //發送心跳
}
// 連接失敗重連
export function onerrorWS() {
  clearInterval(setIntervalWesocketPush)
  Socket.close()
  createSocket() //重連
}
// WS數據接收統一處理
export function onmessageWS(e) {
  window.dispatchEvent(new CustomEvent('onmessageWS', {
    detail: {
      data: e
    }
  }))
}
/**發送數據
 1. @param eventType
 */
export function sendWSPush(eventTypeArr) {
  const obj = {
    appId: 'airShip',
    cover: 0,
    event: eventTypeArr
  }
  if (Socket !== null && Socket.readyState === 3) {
    Socket.close()
    createSocket() //重連
  } else if (Socket.readyState === 1) {
    Socket.send(JSON.stringify(obj))
  } else if (Socket.readyState === 0) {
    setTimeout(() => {
      Socket.send(JSON.stringify(obj))
    }, 3000)
  }
}
/**關閉WS */
export function oncloseWS() {
  clearInterval(setIntervalWesocketPush)
  console.log('websocket已斷開')
}
/**發送心跳 */
export function sendPing() {
  Socket.send('ping')
  setIntervalWesocketPush = setInterval(() => {
    Socket.send('ping')
  }, 5000)
}

2. 組件中調用

import { createSocket, sendWSPush } from './api/websocket'

createSocket() //創建
sendWSPush(11111) //發送數據


// 事件監聽  如果websockte有反應觸發"this.getDataFunc"方法
window.addEventListener('onmessageWS', this.getDataFunc)

//根據需要，銷燬事件監聽(不然會創建多個監聽事件，發一次通告提示好幾次)
window.removeEventListener('onmessageWS', this.getDataFunc)

methods: {
	getDataFunc(e) {
		console.log(e)
	}
}