uniapp-mqtt-onenet/store/index.js

import Vue from 'vue';
import Vuex from 'vuex';

Vue.use(Vuex);

const store = new Vuex.Store({
  state: {
    userInfo:{
        username: "",
        password:"",
        expiration: 0,
        token:''
    }
  },
  mutations: {
    updateUserInfo(state, userInfo) {
      state.userInfo = userInfo;
    },
  }
});

export default store;