项目初始化
diff --git a/frontend/src/permission.js b/frontend/src/permission.js
new file mode 100644
index 0000000..ff5eaad
--- /dev/null
+++ b/frontend/src/permission.js
@@ -0,0 +1,74 @@
+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 } from '@/utils/auth' // get token from cookie
+import getPageTitle from '@/utils/get-page-title'
+
+NProgress.configure({ showSpinner: false }) // NProgress Configuration
+
+const whiteList = ['/login', '/auth-redirect'] // 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()
+
+ if (hasToken) {
+ if (to.path === '/login') {
+ // if is logged in, redirect to the home page
+ next({ path: '/' })
+ NProgress.done() // hack: https://github.com/PanJiaChen/vue-element-admin/pull/2939
+ } else {
+ // determine whether the user has obtained his permission roles through getInfo
+ const hasRoles = store.getters.roles && store.getters.roles.length > 0
+ if (hasRoles) {
+ next()
+ } else {
+ try {
+ // get user info
+ // note: roles must be a object array! such as: ['admin'] or ,['developer','editor']
+ const { roles } = await store.dispatch('user/getInfo')
+
+ // generate accessible routes map based on roles
+ const accessRoutes = await store.dispatch('permission/generateRoutes', roles)
+
+ // 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
+ 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=${to.path}`)
+ NProgress.done()
+ }
+ }
+ }
+ } else {
+ /* has no token*/
+
+ if (whiteList.indexOf(to.path) !== -1) {
+ // in the free login whitelist, go directly
+ next()
+ } else {
+ // other pages that do not have permission to access are redirected to the login page.
+ next(`/login?redirect=${to.path}`)
+ NProgress.done()
+ }
+ }
+})
+
+router.afterEach(() => {
+ // finish progress bar
+ NProgress.done()
+})