Vue.js
- vue-router
- vuex
1、注册全局守卫
核心逻辑
1、token身份验证(后端) => token失效返回登录页面
2、获取用户权限
3、校验permissions，动态添加路由菜单
router.beforeResolve 注册一个全局守卫。和 router.beforeEach 类似，区别是在导航被确认之前，同时在所有组件内守卫和异步路由组件被解析之后，解析守卫就被调用。
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为false时，创建虚拟权限
await store.dispatch('User/setPermissions', ['admin'])
permissions = ['admin']
} else {
permissions = await store.dispatch('User/getUserInfo')
}
let accessRoutes = []
accessRoutes = await store.dispatch('Routes/setRoutes', permissions)
// 添加路由
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 全局设置
export default {
// 是否开启登录拦截
loginInterception: true,
// 不经过token校验的路由
routesWhiteList: ['/auth/sign-in', '/auth/register', '/401', '/404'],
}
2、Vuex状态管理 全局缓存routes
- state ：对数据的全局存储
- getter： 可以理解为computed ，对数据进行计算
- mutations ：对数据的同步更改
- actions：对数据的异步更改（实现异步操作）
- module： 将 store 分割成模块
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、路由拦截
export function hasPermission (permissions, route) {
if (route.meta && route.meta.permissions) {
return permissions.some((role) => route.meta.permissions.includes(role))
} else {
return true
}
}
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、路由菜单
export const constantRoutes = [
{
path: '/auth',
name: 'auth1',
component: AuthLayout,
children: authChildRoutes('auth1'),
hidden: true // 隐藏菜单
},
{
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')
}
]
export const asyncRoutes = [
{
path: '/menu-design',
name: 'horizontal-dashboard',
component: HorizantalLayout,
meta: {
title: 'Menu Design',
name: 'sidebar.MenuDesign',
is_heading: false,
is_active: false,
link: '',
class_name: '',
is_icon_class: true,
icon: 'ri-menu-3-line',
permissions: ['admin']
},
children: horizontalRoute('dashboard')
}, {
path: '/core',
name: 'core',
component: VerticleLayout,
meta: {
title: 'UI Elements',
name: 'sidebar.uiElements',
is_heading: false,
is_active: false,
class_name: '',
link: '',
is_icon_class: true,
icon: 'ri-pencil-ruler-line',
permissions: ['admin']
},
children: coreChildRoute('core')
}
]
5、递归菜单vue组件
<template>
<b-collapse tag="ul" :class="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 ${item.meta.class_name}`" />
</template>
</li>
</b-collapse>
</template>
<script>
import List from './CollapseMenu' // 自身组件
import { core } from '../../../config/pluginInit'
export default {
name: 'List',
props: {
items: Array,
className: { type: String, default: 'iq-menu' },
open: { type: Boolean, default: false },
idName: { type: String, default: 'sidebar' },
accordianName: { type: String, default: 'sidebar' },
sidebarGroupTitle: { type: Boolean, default: true }
},
components: {
List
},
computed: {
hideListMenuTitle () {
return this.sidebarGroupTitle
}
},
mounted () {
},
methods: {
activeLink (item) {
return core.getActiveLink(item, this.$route.name)
}
}
}
</script>
到此这篇关于vue-router 基于后端permissions动态生成导航菜单的示例代码的文章就介绍到这了,更多相关vue-router permissions导航菜单内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网！
