GCLS_Page_Book_Component_NPC/src/permission.js

import router from './router'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken, getConfig } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login'] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
    // start progress bar
    NProgress.start()
        // set page title
    document.title = getPageTitle(to.meta.title)
        //next();
    NProgress.done()
    const hasToken = getToken()

    if (hasToken) {
        let config = getConfig();
        if (config) {
            if (to.path === '/login') {
                // if is logged in, redirect to the home page
                next({ path: '/EnterSys' })
                NProgress.done()
            } else {
                try {
                    next()
                } catch (error) {
                    Message.error(error || 'Has Error')
                    next(`/login?redirect=${to.path}`)
                    NProgress.done()
                }
            }
        } else {
            next(`/login?redirect=${to.path}`)
            NProgress.done()
        }
    } else {
        /* has no token*/
        if (whiteList.indexOf(to.path) !== -1) {
            // in the free login whitelist, go directly
            next()
        } else {
            // other pages that do not have permission to access are redirected to the login page.
            next(`/login?redirect=${to.path}`)
            NProgress.done()
        }
    }
})

router.afterEach(() => {
    // finish progress bar
    NProgress.done()
})