vue-router 基於後端permissions動態生成導航選單的示例程式碼
阿新 • • 發佈:2021-10-04
目錄
- .
- 1、註冊全域性守衛
- 2、Vuex狀態管理 全域性快取routes
- 3、路由攔截
- 4、路由選單
- 5、遞迴選單vue元件
Vue.js
- vue-router
- vuex
1、註冊全域性守衛
核心邏輯
1、token身份驗證(後端) => token失效返回登入頁面
2、獲取使用者許可權
3、校驗permissions,動態新增路由選單
router.beforeResolve 註冊一個全域性守衛。和 router.beforeEach 類似,區別是在導航被確認之前,同時在所有元件內守衛和非同步路由元件被解析之後,解析守衛就被呼叫。
router.beforeResolve(async (to,from,next) => { let hasToken = store.getters['User/accessToken'] if (!settings.loginInterception) hasToken = true if (hasToken) { if (to.path === '/auth/sign-in') { next({ path: '/' }) } else { const hasPermissions = store.getters['User/permissions'] && store.getters['User/permissions'].length > 0 if (hasPermissions) { next() } else { try { let permissions if (!constant.loginInterception) { // settings.js loginInterception為false時,建立虛擬許可權 await store.dispatch('User/setPermissions',['admin']) permissions = ['admin'] } else { permissions = await store.dispatch('User/getUserInfo') } let accessRoutes = [] accessRoutes = await store.dispatch('Routes/setRoutes',permissions) // 新增路由 router.addRoutes(accessRoutes) next({ ...to,replace: true }) } catch { await store.dispatch('User/resetAccessToken') } } } } else { if (settings.routesWhiteList.indexOf(to.path) !== -1) { next() } else { next('/auth/sign-in') } } document.title = getPageTitle(to.meta.title) })
settings.js 全域性設定
export default { // 是否開啟登入攔截 loginInterception: true,// 不經過token校驗的路由 routesWhiteList: ['/auth/sign-in','/auth/register','/401','/404'],}
2、Vuex狀態管理 全域性快取routes
- state :對資料的全域性儲存
- getter: 可以理解為computed ,對資料進行計算
- mutations :對資料的同步更改
- actions:對資料的非同步更改(實現非同步操作)
- module: 將 store 分割成模組
/** * @author Alan * @description 路由攔截狀態管理 */ import { asyncRoutes,constantRoutes } from '@/router' import { filterAsyncRoutes } from '@/Utils/handleRoutes' const state = () => ({ routes: [],partialRoutes: [] }) const getters = { routes: (state) => state.routes,partialRoutes: (state) => state.partialRoutes } const mutations = { setRoutes (state,routes) { state.routes = constantRoutes.concat(routes) },setPartialRoutes (state,routes) { state.partialRoutes = constantRoutes.concat(routes) } } const actions = { async setRoutes ({ commit },permissions) { const finallyAsyncRoutes = await filterAsyncRoutes( [...asyncRoutes],permissions ) commit('setRoutes',finallyAsyncRoutes) return finallyAsyncRoutes },setPartialRoutes ({ commit },accessRoutes) { commit('setPartialRoutes',accessRoutes) return accessRoutes } } export default { namespaced: true,state,getters,mutations,actions }
3、路由攔截
/** * @author Alan * @description 判斷當前路由是否包含許可權 * @param permissions * @param route * @returns {boolean|*} */ export function hasPermission (permissions,route) { if (route.meta && route.meta.permissions) { return permissions.some((role) => route.meta.permissions.includes(role)) } else { return true } } /** * @author Alan * @description 根據permissions陣列攔截路由 * @param routes * @param permissions * @returns {[]} */ export function filterAsyncRoutes (routes,permissions) { const finallyRoutes = [] routes.forEach((route) => { const item = { ...route } if (hasPermission(permissions,item)) { if (item.children) { item.children = filterAsyncRoutes(item.children,permissions) } finallyRoutes.push(item) } }) return finallyRoutes }
4、路由選單
/* * @author Alan * @description 公共路由 */ export const constantRoutes = [ { path: '/auth',name: 'auth1',component: AuthLayout,children: authChildRoutes('auth1'),hidden: true // 隱藏選單 },{ path: '/',name: 'dashboard',component: VerticleLayout,meta: { title: 'Dashboard',name: 'sidebar.dashboard',is_heading: false,is_active: false,link: '',class_name: '',is_icon_class: true,icon: 'ri-home-4-line',permissions: ['admin'] },children: childRoutes('dashboard') } ] /* * @author Alan * @description 非同步路由 */ export const asyncRoutes = [ { path: '/menu-design',name: 'horizontal-dashboard',component: HorizantalLayout,meta: { title: 'Menu Design',name: 'sidebar.MenuDesign',icon: 'ri-menu-3-line',children: horizontalRoute('dashboard') },{ path: '/core',name: 'core',meta: { title: 'UI Elements',name: 'sidebar.uiElements',icon: 'ri-pDEqEbQCpencil-ruler-line',permissions: ['admin'] DEqEbQCp },children: coreChildRoute('core') } ]
5、遞迴選單vue元件
<template> <b-collapse tag="ul" :claDEqEbQCpss="className" :visible="open" :id="idName" :accordion="accordianName"> <li v-for="(item,index) in items" :key="index" :class=" !hideListMenuTitle? 'p-0' : item.meta.is_heading ? 'iq-menu-title' :activeLink(item) && item.children ? 'active' : activeLink(item) ? 'active' : ''"> <template v-if="!item.hidden"> <i v-if="item.meta.is_heading && hideListMenuTitle" class="ri-subtract-line" /> <span v-if="item.meta.is_heading && hideListMenuTitle">{{ $t(item.meta.name) }}</span> <router-link :to="item.meta.link" v-if="!item.is_heading" :class="`iq-waves-effect ${activeLink(item) && item.children ? 'active' : activeLink(item) ? 'active' : ''}`" v-b-toggle="item.meta.name"> <i :class="item.meta.icon" v-if="item.meta.is_icon_class"/> <template v-else v-html="item.meta.icon"> </template> <span>{{ $t(item.meta.name) }}</span> <i v-if="item.children" class="ri-arrow-right-s-line iq-arrow-right" /> <small v-html="item.meta.append" v-if="hideListMenuTitle" :class="item.meta.append_class" /> </router-link> <List v-if="item.children" :items="item.children" :sidebarGroupTitle="hideListMenuTitle" :open="item.meta.link.name !== '' && activeLink(item) && item.children ? true : !!(item.meta.link.name !== '' && activeLink(item))" :idName="item.meta.name" :accordianName="`sidebar-accordion-${item.meta.class_name}`" :className="`iq-submenu ${item.meta.class_name}`" /> </template> </li> </b-collapse> </template> <script> import List from './CollapseMenu' // 自身元件 import { core } from '../../../config/pluginInit' export default { name: 'List',props: { items: Array,className: { type: String,default: 'iq-menu' },open: { type: Boolean,default: false },idName: { type: String,default: 'sidebar' },accordianName: { type: String,sidebarGroupTitle: { type: Boolean,default: true } },components: { List },computed: { hideListMenuTitle () { return this.sidebarGroupTitle } },mounted () { },methods: { activeLink (item) { return core.getActiveLink(item,this.$route.name) } } } </script>
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