前端用户权限

使用的技术栈：
vue-router、vuex、element-ui
利用vue-router的全局前置守卫 beforeEach

import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress'
import 'nprogress/nprogress.css'
import { getAccessToken } from '@/utils/xl-auth'
import { getTenant } from '@/utils/xl-auth'
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false })

const whiteList = ['/login']

router.beforeEach(async (to, from, next) => {
  NProgress.start()

  document.title = getPageTitle(to.meta.title)

  const hasToken = getAccessToken()
  const hasTenant = getTenant()

  if (hasToken && hasTenant) {
    if (to.path === '/login') {
      next({ path: '/' })
      NProgress.done()
    } else {
      const hasRoles = store.getters.roles && store.getters.roles.length > 0
      if (hasRoles) {
        next()
      } else {
        try {
          const menus = await store.dispatch('user/getInfo')
          const accessRoutes = await store.dispatch('permission/generateRoutes', menus)
          router.addRoutes(accessRoutes)
          next({ ...to, replace: true })
        } catch (error) {
          await store.dispatch('user/resetToken')
          Message.error(error || '该账号没有权限！')
          next(`/login`)
          NProgress.done()
        }
      }
    }
  } else {
    if (whiteList.indexOf(to.path) !== -1) {
      next()
    } else {
      next(`/login`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  NProgress.done()
})