下载mqtt
代码语言：javascript
复制npm i mqtt@2.18.8
存储mqtt客户端到vuex
代码语言：javascript
复制// mqtt module
import mqtt from 'mqtt'
const CONNECT_MQTT = 'CONNECT_MQTT'
const SERVER_IP = ''
const SERVER_PORT = ''
const SERVER_PATH = 'mqtt'
// 连接地址
const SERVICE = `${SERVER_IP}:${SERVER_PORT}/${SERVER_PATH}`
// 连接配置项
const options = {
wsOptions: {},
protocolVersion: 4, //MQTT连接协议版本
keepalive: 60,
clean: true,
clientId: CLIENT_ID,
reconnectPeriod: 1000, //1000毫秒，两次重新连接之间的间隔
connectTimeout: 30 * 1000,
resubscribe: true ,//如果连接断开并重新连接，则会再次自动订阅已订阅的主题（默认true）
}
const state = () => ({ mqttClient: null })
const actions = {
[CONNECT_MQTT]({ commit, state }) {
// 连接mqtt 监听常用事件
let client = mqtt.connect('wx://' service options)
client.on('connect', () => {
}).on('error', () => {
}).on('reconnect', () => {
}).on('message', () => {
}).on('close', () => {
})
commit(CONNECT_MQTT, client)
}
}
const mutations = {
[CONNECT_MQTT](state, client) {
state.mqttClient = client
}
}
根组件中连接mqtt
代码语言：javascript
复制import { mapActions } from 'vuex'
import { CONNECT_MQTT } from '@/store/actionTypes'
export default {
onLaunch: function() {
this.CONNECT_MQTT()
},
methods: {
...mapActions('mqtt', [CONNECT_MQTT])
}
}
