npm install stompjs

npm install --save net

<script>
import Stomp from 'stompjs'
---在sysconstant.js配置文件中配置mqtt的服务端地址，账号等信息
import { MQTT_SERVICE, MQTT_USERNAME, MQTT_PASSWORD } from '../../config/sysconstant.js'
export default {
 name: 'entry',
 data () {
  return {
   client: Stomp.client(MQTT_SERVICE)
  }
 },
 created () {
  this.connect()
 },
 methods: {
  onConnected: function (frame) {
   console.log('Connected: ' + frame)
   var topic = '/topic/AllCustomer' 
---订阅频道
   this.client.subscribe(topic, this.responseCallback, this.onFailed) 
  },
  onFailed: function (frame) {
   console.log('Failed: ' + frame)
  },
  responseCallback: function (frame) {
   console.log('responseCallback msg=>' + frame.body)
   ---接收消息
  },
  connect: function () {
   ---初始化mqtt客户端，并连接mqtt服务
   var clientid = util.uuid()
   var headers = {
    'login': MQTT_USERNAME,
    'passcode': MQTT_PASSWORD,
    'client-id': clientid
    // additional header
   }
   this.client.connect(headers, this.onConnected, this.onFailed)
  }
 }
}
</script>

/**
 * 配置文件，记录系统中固定的参数
 */
export const MQTT_SERVICE = 'ws://127.0.0.1:61623/stomp' // mqtt服务地址
export const MQTT_USERNAME = 'admin' // mqtt连接用户名
export const MQTT_PASSWORD = 'password' // mqtt连接密码