text: import router from './router'
  import { checkToken, logout } from '@/api/login'
  import NProgress from 'nprogress' // Progress 进度条
  import 'nprogress/nprogress.css'// Progress 进度条样式
  import { Message } from 'element-ui'
  import { getToken, removeToken } from '@/utils/auth' // 验权
  
  const whiteList = ['/login', '/register', '/resetpwd'] // 不判断权限白名单
  router.beforeEach((to, from, next) => {
    NProgress.start()
    if (getToken()) {
      if (to.path === '/login') {
        next({ path: '/' })
        NProgress.done() // if current page is dashboard will not trigger	afterEach hook, so manually handle it
      } else {
        checkToken().then(res => { // 判断token有效性
          next()
        }).catch((err) => {
          logout().then(() => {
            Message.error(err || '已成功退出')
            removeToken()
            next({ path: '/' })
          })
        })
      }
    } else {
      if (whiteList.indexOf(to.path) !== -1) {
        next()
      } else {
        next('/login')
        NProgress.done()
      }
    }
  })
  
  router.afterEach(() => {
    NProgress.done() // 结束Progress
  })
  