npm install nprogress --save
2. 在main.js中导入
源码~~~~~~方便你复制
// The Vue build version to load with the `import` command // (runtime-only or standalone) has been set in webpack.base.conf with an alias. import Vue from 'vue' import App from './App' import router from './router' import iView from 'iview' import 'iview/dist/styles/iview.css' import moment from './plugins/moment' import axios from './plugins/axios' import NProgress from 'nprogress' import 'nprogress/nprogress.css' import { base } from './router/config' Vue.use(iView) Vue.use(moment) Vue.use(axios) Vue.config.productionTip = false // 配置NProgress进度条选项 —— 动画效果 NProgress.configure({ ease: 'ease', speed: 500 }) // 全局路由拦截-进入页面前执行 router.beforeEach((to, from, next) => { if (to.path === `${base}login`) { return next() } // token验证，如果存储在sessionStorage里的auth的值丢失，就回到登陆页面，(开发时可以注释掉) // if (!sessionStorage.getItem('auth')) { // return next(`${base}login`) // } // 如果页面在 / 默认页面，跳转到登陆页面(和vue路由重定向功能类似) if (to.path === `${base}`) { return next(`${base}login`) } // NProgress开始进度条 NProgress.start() next() }) // 全局后置钩子-常用于结束动画等 router.afterEach(transition => { // NProgress结束进度条 NProgress.done() // console.log(transition) }) /* eslint-disable no-new */ new Vue({ el: '#app', router, components: { App }, template: '<App/>' })