vue路由切换时取消之前的所有请求操作

import router from 'router/';
import Vue from 'vue';
Vue.Cancel = [];
router.beforeEach((to, from, next) => {
 while (Vue.Cancel.length > 0) {
 Vue.Cancel.shift()('cancel');
 }
 next();
})

import Vue from 'vue';
import axios from 'axios';
import VueAxios from 'vue-axios';

Vue.use(VueAxios, axios);

// 导入封装的回调函数
import {
 cbs,
 gbs
} from 'config/';

// 动态设置本地和线上接口域名
Vue.axios.defaults.baseURL = gbs.host;

/**
 * 封装axios的通用请求
 * @param {string} type get或post
 * @param {string} url 请求的接口URL
 * @param {object} data 传的参数，没有则传空对象
 * @param {object} urlParams url传参
 * @param {Function} fn 回调函数
 * @param {boolean} tokenFlag 是否需要携带token参数，为true，不需要；false，需要。一般除了登录，都需要
 */
export default function ({
 type,
 path,
 data,
 params,
 urlParams,
 fn,
 errFn,
 tokenFlag,
 headers,
 opts
} = {}) {

 var options = {
 method: type,
 url: path,
 params: params,
 headers: headers && typeof headers === 'object' ? headers : {},
 cancelToken: new axios.CancelToken(function (cancel) {
  Vue.Cancel && Vue.Cancel.push(cancel)
 }) 
 };

 //检测接口权限
 var api_flag = true;
 if (options.url && options.url.indexOf(gbs.host) && this.$store.state.user.userinfo.access_status === 1) {
 var url = options.url.replace(gbs.host, '');
 var api_routers = this.$store.state.user.userinfo.api_routers;
 if (!api_routers || !api_routers.constructor === Object || !api_routers[url]) {
  api_flag = false;
 }
 }

 var urlParamsArray = [];
 if (api_flag === true) {
 options[type === 'get' ? 'params' : 'data'] = data;

 // 用于url传参
 if (typeof (urlParams) == "object") {
  for (var k in urlParams) {
  urlParamsArray.push(k + '=' + urlParams[k])
  }
  options.url += '?' + urlParamsArray.join('&');
 }
 if (typeof (urlParams) == "string" || typeof (urlParams) == "number") {
  options.url += urlParams;
 }

 if(options.url.indexOf('?') > -1){
  options.url += '&_=' + (new Date()).getTime();
 }else{
  options.url += '?_=' + (new Date()).getTime();
 }

 // 分发显示加载样式任务
 this.$store.dispatch('show_loading');

 if (tokenFlag !== true) {
  //如果你们的后台不会接受headers里面的参数，打开这个注释，即实现token通过普通参数方式传
  // data.token = this.$store.state.user.userinfo.token;

  options.headers.token = this.$store.state.user.userinfo.token;
 }

 //扩展Promise使支持finally()，用了babel就不用手写了^.^
 // Promise.prototype.finally=function(callback){
 // let Promise = this.constructor;
 // return this.then(
 //  value => Promise.resolve(callback()).then(() => value),
 //  reason => Promise.resolve(callback()).then(() => { throw reason })
 // );
 // };
 //发送请求
 return new Promise((resolve, reject)=>{
  Vue.axios(options).then((res) => {
  this.$store.dispatch('hide_loading');
  if (res.data[gbs.api_status_key_field] === gbs.api_status_value_field || (res.status === gbs.api_status_value_field && !res.data[gbs.api_status_key_field])) {
   fn(res.data);
  } else {
   if (gbs.api_custom[res.data[gbs.api_status_key_field]]) {
   gbs.api_custom[res.data[gbs.api_status_key_field]].call(this, res.data);
   } else {
   cbs.statusError.call(this, res.data);
   if (errFn) {
    errFn.call(this, res.data);
   }
   }
  }
  resolve(res.data);
  }).catch((err) => {
  if(err.response && err.response.status !== 403){
   try{
   errFn?errFn.call(this, this.$$lib__.isObject(err.response.data) ? err.response.data : {}):null;
   }catch(err){
   console.error(err.message);
   }
  }
  if(err.response && err.response.data === ''){
   cbs.statusError.call(this, {status: err.response.status});
  } else if (err.response && this.$$lib__.isObject(err.response.data)) {
   cbs.statusError.call(this, err.response.data);
  }else if(err.response){
   cbs.requestError.call(this, err);
  } else {
   console.error('Error from ', '"'+path+'".', err.message);
  }
  reject(err);
  });
 });
 } else {
 this.$alert('您没有权限请求该接口！', '请求错误', {
  confirmButtonText: '确定',
  type: 'warning'
 });
 }
};

var options = {
 method: type,
 url: path,
 params: params,
 headers: headers && typeof headers === 'object' ? headers : {},
 cancelToken: new axios.CancelToken(function (cancel) {
  Vue.Cancel && Vue.Cancel.push(cancel)
 }) 
 };

let intervalId = null
function init() {
 this.refresh()
}

function refresh() {
 intervalId = setTimeout(() => {
   this.getRefreshData()
  }, 2000);
}

function getRefreshData() {
 console.log('start get data.....', intervalId)
 setTimeout(() => {
  console.log('get data.....')
  this.refresh()
 }, 100);
 
}

function stopRefresh() {
 console.log('stop....', intervalId)
 clearInterval(intervalId)
}

this.init()
setTimeout(() => {
 this.stopRefresh()
}, 5000);