解决vue-router addRoutes多次添加路由重复问题

在router.js中

import Vue from 'vue' import Router from 'vue-router' const routes = [ { path: '/', redirect: '/home'}, { path: '/login', name: 'login', component: r => { require(['../components/login'], r) }, meta: { title: 'client 登录' }}, ] Vue.use(Router) //创建方法 const createRouter = () => new Router({ mode: 'hash', routes: routes }) const router = createRouter() export function resetRouter () { const newRouter = createRouter() router.matcher = newRouter.matcher // the relevant part } export default router

在相应权限控制即 permission.js中，

import router from './router' import store from './store' import NProgress from 'nprogress' // progress bar import 'nprogress/nprogress.css'// progress bar style // import { getToken } from '@/utils/auth' // getToken from cookie import { toTree } from '@/utils' import { getToken } from '@/utils/auth' NProgress.configure({ showSpinner: false })// NProgress Configuration const whiteList = ['/login'] // permission judge function function hasPermission(roles, permissionRoles) { if (roles.indexOf('admin') >= 0) return true // admin permission passed directly if (!permissionRoles) return true return roles.some(role => permissionRoles.indexOf(role) >= 0) } router.beforeEach((to, from, next) => { NProgress.start() if (getToken()) { /* has token*/ if (to.path === '/login') { next({ path: '/home' }) NProgress.done() } else { if (store.getters.roles.length === 0) { // 判断当前用户是否已拉取完user_info信息 store.dispatch('GetInfo').then(res => { // 拉取user_info const roles = res.roles store.dispatch('GenerateRoutes', { roles }).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 if(to.path === '/home'){ next() }else{ next({ ...to, replace: true }) // hack方法 确保addRoutes已完成 } }) }) .catch(err => { store.dispatch('LogOut').then(() => { next({ path: '/login' }) }) }) } else { if(to.matched.length === 0){ //没找到相应匹配 next({ path: '/404', }) }else { next() } } } } else { if (whiteList.indexOf(to.path) !== -1) { // 在免登录白名单，直接进入 next() } else { next(`/login?redirect=${to.fullPath}`) // 否则全部重定向到登录页 NProgress.done() } } }) router.afterEach(() => { NProgress.done() // finish progress bar })