vuex中代码

import Vue from 'vue'
import Vuex from 'vuex'
import { Loading } from 'element-ui'
Vue.use(Vuex)
Vue.use(Loading)

export default new Vuex.Store({
    state: {
        // 请求计数
        apiCount: 0,
        // loading实例
        loadingInstance: null
    },
    mutations: {
        /* 打开Loading */
        startLoading(state, msg) {
            state.loadingInstance = Loading.service({
                lock: true,
                text: msg || '加载中...',
                background: 'rgba(0, 0, 0, 0.7)'
            })
        },
        /* 关闭loading */
        closeLoading(state) {
            state.loadingInstance.close()
        },
        /* 更新请求线程池 */
        updateApiCount(state, handle) {
            if (handle === 'add') {
                state.apiCount++
                this.commit('startLoading')
            } else {
                state.apiCount--
                if (state.apiCount <= 0) {
                    this.commit('closeLoading')
                }
            }
        }
    },
    actions: {},
    modules: {
    }
})

封装请求

import axios from 'axios'
import qs from 'qs'
import store from '@store/index'

// create an axios instance
const service = axios.create({
    // api 的 base_url
    baseURL: process.env.VUE_APP_API,
    timeout: 2 * 30 * 60 * 1000, // 请求超时时间
    transformRequest: [function(data) {
        return qs.stringify(data)
    }]
})

service.interceptors.request.use(
    config => {
        store.commit('updateApiCount', 'add')
        return config
    },
    error => {
        store.commit('updateApiCount', 'sub')
        return Promise.reject(error)
    }
)

// response interceptor
service.interceptors.response.use(

    response => {
        store.commit('updateApiCount', 'sub')
        const res = response.data
        // todo
        return res
    },
    error => {
        store.commit('updateApiCount', 'sub')
        console.log('请求err' + error) // for debug
        // Message({
        //   // message: error.message,
        //   message: '联网异常，请检查网络状态',
        //   type: 'error',
        //   duration: 2 * 1000
        // })
        return Promise.reject(error)
    }
)

export default service