vue-router+vuexaddRoutes实现路由动态加载及菜单动态加载

let permission = JSON.parse(window.sessionStorage.getItem('permission')) 
if (permission) { 
 store.commit(ADD_MENU, permission) 
 router.addRoutes(store.state.menu.items) 
} 
router.beforeEach((route, redirect, next) => { 
 if (state.app.device.isMobile && state.app.sidebar.opened) { 
  store.commit(TOGGLE_SIDEBAR, false) 
 } 
 if (route.path === '/login') { 
  window.sessionStorage.removeItem('user') 
  window.sessionStorage.removeItem('permission') 
  store.commit(ADD_MENU, []) 
 } 
 let user = JSON.parse(window.sessionStorage.getItem('user')) 
 if (!user && route.path !== '/login') { 
  next({ path: '/login' }) 
 } else { 
  if (route.name) { 
   next() 
  } else { 
   next({ path: '/nofound' }) 
  } 
 } 
}) 

computed: { 
   ...mapGetters([ 
    'menuitems', 
    'isLoadRoutes' 
    // ... 
   ]) 
  }, 

...mapActions([ 
    'addMenu', 
    'loadRoutes' 
   ]) 

this.$router.addRoutes(this.menuitems) 

const state = { 
 items: [ 
 ], 
 isLoadRoutes: false 
} 
 
const mutatiOns= { 
 [types.EXPAND_MENU] (state, menuItem) { 
  if (menuItem.index > -1) { 
   if (state.items[menuItem.index] && state.items[menuItem.index].meta) { 
    state.items[menuItem.index].meta.expanded = menuItem.expanded 
   } 
  } else if (menuItem.item && 'expanded' in menuItem.item.meta) { 
   menuItem.item.meta.expanded = menuItem.expanded 
  } 
 }, 
 [types.ADD_MENU] (state, menuItems) { 
  if (menuItems.length === 0) { 
   state.items = [] 
  } else { 
   generateMenuItems(state.items, menuItems) 
  } 
 }, 
 [types.LOAD_ROUTES] (state) { 
  state.isLoadRoutes = !state.isLoadRoutes 
 } 
} 

import Vue from 'vue' 
import Router from 'vue-router' 
import menuModule from 'vuex-store/modules/menu' 
Vue.use(Router) 
 
export default new Router({ 
 mode: 'hash', // Demo is living in GitHub.io, so required! 
 linkActiveClass: 'is-active', 
 scrollBehavior: () => ({ y: 0 }), 
 routes: [ 
  { 
   path: '/login', 
   component: require('../Login.vue'), 
   meta: { 
    expanded: false, 
    show: false 
   }, 
   name: 'Login' 
  }, 
  { 
   path: '/', 
   component: require('../views/Home.vue'), 
   meta: { 
    expanded: false, 
    show: false 
   }, 
   children: [ 
    { path: '/nofound', component: require('../404.vue'), name: 'NOFOUND', meta: {show: false} } 
   ] 
  }, 
  ...generateRoutesFromMenu(menuModule.state.items) 
 ] 
}) 
 
// Menu should have 2 levels. 
function generateRoutesFromMenu (menu = [], routes = []) { 
 for (let i = 0, l = menu.length; i 

import Vue from 'vue' 
import Vuex from 'vuex' 
import * as actions from './actions' 
import * as getters from './getters' 
 
import menu from './modules/menu' 
 
Vue.use(Vuex) 
 
const store = new Vuex.Store({ 
 strict: true, // process.env.NODE_ENV !== 'development', 
 actions, 
 getters, 
 modules: { 
  menu 
 }, 
 mutations: { 
 } 
}) 
 
export default store 

export const addMenu = ({ commit }, menuItems) => { 
 if (menuItems.length > 0) { 
  commit(types.ADD_MENU, menuItems) 
 } 
} 
 
export const loadRoutes = ({ commit }) => { 
 commit(types.LOAD_ROUTES) 
} 

const menuitems = state => state.menu.items 
const isLoadRoutes = state => state.menu.isLoadRoutes 
export { 
 menuitems, 
 isLoadRoutes 
} 

export const ADD_MENU = 'ADD_MENU' 
 
export const LOAD_ROUTES = 'LOAD_ROUTES'