large-vue/src/permission.js

import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress'
import 'nprogress/nprogress.css'
import { getToken } from '@/utils/auth'
import { isRelogin } from '@/utils/request'
import { isPadDevice } from '@/utils/device'; // 设备检测工具函数

NProgress.configure({ showSpinner: false })

const whiteList = ['/login','/loginPad','/user/doLogin', '/auth-redirect', '/bind', '/register','/screen','/pad']

router.beforeEach((to, from, next) => {
  NProgress.start()
  if (getToken()) {
    to.meta.title && store.dispatch('settings/setTitle', to.meta.title)
    /* has token*/
    if (to.path === '/login') {
      next({ path: '/index' })
      NProgress.done()
    }else if (to.path === '/loginPad') {
      next({ path: '/pad' })
      NProgress.done()
    }
     else {
      if (store.getters.roles.length === 0) {
        isRelogin.show = true
        // 判断当前用户是否已拉取完user_info信息
        store.dispatch('GetInfo').then(() => {
          isRelogin.show = false
          store.dispatch('GenerateRoutes').then(accessRoutes => {
            // 根据roles权限生成可访问的路由表
            router.addRoutes(accessRoutes) // 动态添加可访问路由表
            next({ ...to, replace: true }) // hack方法 确保addRoutes已完成
          })
        }).catch(err => {
          store.dispatch('LogOut').then(() => {
            const loginPath = isPadDevice() ? 2 : 1;
                        Message.error(err)
                        if(loginPath==1){
                          next({ path: '/login' })
                        }else{
                          next({ path: '/loginPad' })
                        }
          })
        })
      } else {
        next()
      }
    }
  } else {
    // 没有token
    if (whiteList.indexOf(to.path) !== -1) {
      // 在免登录白名单，直接进入
      next()
    } else {
      const loginPath = isPadDevice() ? 2 : 1;
      // next(`/login?redirect=${to.fullPath}`) // 否则全部重定向到登录页
      if(loginPath==1){
        next(`/login`) // 否则全部重定向到登录页
      }else{
        next(`/pad`) // 否则全部重定向到登录页
      }

      NProgress.done()
    }
  }
})

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