modernDairy/src/permission.js

import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken,removeToken } from '@/utils/auth' // get token from cookie
import Cookies from 'js-cookie'
import getPageTitle from '@/utils/get-page-title'
// 1为单点登录，其他不是
Cookies.set('sso',1)
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)

  // determine whether the user has logged in
  const hasToken = getToken()

    console.log('hasToken==>',hasToken)
  if (hasToken) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({ path: '/' })
      NProgress.done()
    } else {
      // determine whether the user has obtained his permission roles through getInfo
      const hasRoles = store.getters.roles && store.getters.roles.length > 0
      if (hasRoles) {
        // console.log('%c 不用获取，直接进入页面', 'color:#4EA35F')
        next()
      } else {
        try {
          // get user info
          // note: roles must be a object array! such as: ['admin'] or ,['developer','editor']
          // console.log('%c 开始请求用户信息', 'color:#4EA35F')
          const { roles } = await store.dispatch('user/getInfo')

          // generate accessible routes map based on roles
          const accessRoutes = await store.dispatch('permission/generateRoutes', roles)
          console.log(accessRoutes,'accessRoutes')
          // dynamically add accessible routes
          router.addRoutes(accessRoutes)

          // hack method to ensure that addRoutes is complete
          // set the replace: true, so the navigation will not leave a history record
          // console.log('%c 马上载入页面', 'color:skyblue')
          next({ ...to, replace: true })
        } catch (error) {
          // remove token and go to login page to re-login
          await store.dispatch('user/resetToken')
          Message.error(error || 'Has Error')
          // next(`/login?redirect=${to.path}`)    //跳转到退出前界面
          removeToken()
          next(`/login`)
          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}`)    //跳转到退出前界面

      next({ path: '/login' })
      NProgress.done()
      if(Cookies.get('sso') == 1){
        // 单点登录
        // 构建要跳转的URL
        var url = process.env.VUE_APP_BASE_API
        console.log(url,'url')
        //获取当前url
        if(url.indexOf('/')==0 && url.length==1){
          url= window.location.protocol + "//"+window.location.host+url
        }
        const externalURL = "https://id.xiandaimuye.com/api/v1/oauth2/authorize?response_type=code&client_id=fTBm64I4k3kqHYtoFTUpvirCDxxCfx7I&redirect_uri="+url+'api/v1/oauth2/token';
        // 使用 $router.push 进行页面跳转
        // 注意: 这里的跳转是在当前窗口进行的，如果需要在新标签页打开，可以使用 window.open(externalURL)
        window.open(externalURL, "_self");
      }
    }
  }
})

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