实现思路:
// store.user.js
import { login, logout, getInfo } from '@/api/user'
import { getToken, setToken, removeToken } from '@/utils/auth'
import { resetRouter } from '@/router'
const getDefaultState = () => {
return {
token: getToken(),
name: '',
avatar: '',
role:[],
}
}
const state = getDefaultState()
const mutations = {
RESET_STATE: (state) => {
Object.assign(state, getDefaultState())
},
SET_TOKEN: (state, token) => {
state.token = token
},
SET_NAME: (state, name) => {
state.name = name
},
SET_AVATAR: (state, avatar) => {
state.avatar = avatar
},
setRole:(state,role)=>{
state.role = role
}
}
const actions = {
// user login
login({ commit }, userInfo) {
const { username, password } = userInfo
return new Promise((resolve, reject) => {
login({ username: username.trim(), password: password }).then(response => {
const { data } = response
commit('SET_TOKEN', data.token)
setToken(data.token)
resolve()
}).catch(error => {
reject(error)
})
})
},
// get user info
getInfo({ commit, state }) {
return new Promise((resolve, reject) => {
getInfo(state.token).then(response => {
const { data } = response
if (!data) {
return reject('Verification failed, please Login again.')
}
const { name, avatar,roles } = data
console.log(data,'data---')
commit('SET_NAME', name)
commit('SET_AVATAR', avatar)
commit('setRole', roles)
resolve(data)
}).catch(error => {
reject(error)
})
})
},
// user logout
logout({ commit, state }) {
return new Promise((resolve, reject) => {
logout(state.token).then(() => {
removeToken() // must remove token first
console.log('退出登录')
resetRouter()
commit('RESET_STATE')
commit('setRole', [])
resolve()
}).catch(error => {
reject(error)
})
})
},
// remove token
resetToken({ commit }) {
return new Promise(resolve => {
removeToken() // must remove token first
commit('RESET_STATE')
resolve()
})
}
}
export default {
namespaced: true,
state,
mutations,
actions
}
// router.js
import Vue from 'vue'
import Router from 'vue-router'
Vue.use(Router)
import Layout from '@/layout'
export const constantRoutes = [
{
path: '/login',
component: () => import('@/views/login/index'),
hidden: true
},
{
path: '/404',
component: () => import('@/views/404'),
hidden: true
},
{
path: '/',
component: Layout,
redirect: '/home',
children: [{
path: 'home',
name: 'home',
component: () => import('@/views/home/index'),
meta: { title: 'home', icon: 'dashboard' }
}]
},
// 404 page must be placed at the end !!!
{ path: '*', redirect: '/404', hidden: true }
]
export const asyncRoutes = [
{
path: '/editPage',
component: Layout,
children: [
{
path: 'index',
name: 'editPage',
component: () => import('@/views/edit/index'),
meta: {
title: '编辑页面',
icon: 'form',
role:['editor']
}
}
],
meta: {
title: '编辑页面',
icon: 'form',
role:['editor']
}
},
{
path: '/adminPage',
component: Layout,
children: [
{
path: 'index',
name: 'adminPage',
component: () => import('@/views/adminPage/index'),
meta: {
title: '管理员页面',
icon: 'form',
role:['admin']
}
}
],
meta: {
title: '管理员页面',
icon: 'form',
role:['admin']
}
},
{
path: '/otherPage',
component: Layout,
children: [
{
path: 'index',
name: 'otherPage',
component: () => import('@/views/otherPage/index'),
meta: {
title: '其他页面',
icon: 'form',
}
}
]
}
]
const createRouter = () => new Router({
scrollBehavior: () => ({ y: 0 }),
routes: constantRoutes
})
const router = createRouter()
// 重置路由
export function resetRouter() {
const newRouter = createRouter()
router.matcher = newRouter.matcher // reset router
}
export default router
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'] // 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()
} else {
const hasGetUserInfo = store.getters.name
if (hasGetUserInfo) {
next()
} else {
try {
// get user info
// await store.dispatch('user/getInfo')
const {roles} = await store.dispatch('user/getInfo')
const route = await store.dispatch('permission/getRoute',roles)
// ['admin']
console.log(roles,'info')
console.log(route,'route')
router.addRoutes(route)
next()
} 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()
})
// store/permission.js
import {constantRoutes,asyncRoutes} from '@/router/index'
function hasPermission(role,roleItem){
if(roleItem.meta && roleItem.meta.role){
return roleItem.meta.role.some(item=>role.includes(item))
}else{
return true
}
}
function getRoute (arr,role){
let routeArr = []
arr.forEach(item=>{
console.log(item)
if(hasPermission(role,item)){
if(item.children){
item.children = getRoute(item.children,role)
}
routeArr.push(item)
}
})
return routeArr
}
const state = {
routeList:[]
}
const mutations = {
setRoutes(state,payload){
state.routeList = payload
}
}
const actions = {
getRoute({ commit }, data) {
return new Promise((resolve,reject)=>{
// console.log(data)
let arr = constantRoutes.concat(getRoute(asyncRoutes,data))
console.log(arr)
commit('setRoutes', arr)
resolve(arr)
})
// commit('CHANGE_SETTING', data)
}
}
export default {
namespaced: true,
state,
mutations,
actions
}
<template>
<div :class="{'has-logo':showLogo}">
<logo v-if="showLogo" :collapse="isCollapse" />
<el-scrollbar wrap-class="scrollbar-wrapper">
<el-menu
:default-active="activeMenu"
:collapse="isCollapse"
:background-color="variables.menuBg"
:text-color="variables.menuText"
:unique-opened="false"
:active-text-color="variables.menuActiveText"
:collapse-transition="false"
mode="vertical"
>
<sidebar-item v-for="route in routes" :key="route.path" :item="route" :base-path="route.path" />
</el-menu>
</el-scrollbar>
</div>
</template>
<script>
import { mapGetters,mapState } from 'vuex'
import Logo from './Logo'
import SidebarItem from './SidebarItem'
import variables from '@/styles/variables.scss'
export default {
components: { SidebarItem, Logo },
computed: {
...mapGetters([
'sidebar'
]),
...mapState({
routes:(state)=>state.permission.routeList
}),
// routes() {
// return this.$router.options.routes
// },
activeMenu() {
const route = this.$route
const { meta, path } = route
// if set path, the sidebar will highlight the path you set
if (meta.activeMenu) {
return meta.activeMenu
}
return path
},
showLogo() {
return this.$store.state.settings.sidebarLogo
},
variables() {
return variables
},
isCollapse() {
return !this.sidebar.opened
}
},
}
</script>
import Vue from 'vue';
import store from '@/store/index'
function permission(el, data){
const {value} = data
const {role} = store.state.user
// 判断有没有权限
let isPermission = value.some(item=>role.includes(item))
// 如果没有权限
if(!isPermission){
// 移除当前节点
el.parentNode && el.parentNode.removeChild(el)
}
}
Vue.directive('permission',{
inserted(el,data){
permission(el,data)
},
update(el,data){
permission(el,data)
}
})
使用自定义权限指令
<template>
<div class="dashboard-container">
<div class="dashboard-text">name: {{ name }}</div>
<el-button v-permission="['admin']">添加</el-button>
<el-button v-permission="['admin','editor']">修改</el-button>
</div>
</template>
<script>
import { mapGetters } from 'vuex'
export default {
name: 'Dashboard',
computed: {
...mapGetters([
'name'
])
}
}
</script>
<style lang="scss" scoped>
.dashboard {
&-container {
margin: 30px;
}
&-text {
font-size: 30px;
line-height: 46px;
}
}
</style>