1. 在路由实例中保留基础路由
router/index.js中只需要保留基础路由，其他的都删了
2. 获取用户菜单，并保存到Vuex中
stroe/modules/user.js中，有个getInfo方法查询用户基本信息，返回了用户的菜单列表
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// get user info
getInfo({ commit, state }) {
return new Promise((resolve, reject) => {
getInfo(state.token).then(response => {
const { data } = response
if (!data) {
reject('Verification failed, please Login again.')
}
console.log(data)
const menus =
[{
path: '/books',
component: 'Layout',
children: [{
path: 'index',
name: 'AddressBook',
component: 'workbench/addressbook',
meta: { title: '通讯录', icon: 'company' }
}]
},
{
path: '/systool',
component: 'Layout',
redirect: '/systool/coder',
name: 'SysTool',
meta: { title: '实验室', icon: 'example' },
children: [
{
path: 'calendar',
name: 'Calendar',
component: 'workbench/calendar',
meta: { title: '日程', icon: 'table' }
}
]
}]
const { name, avatar, companyName, employeeid } = data
commit('SET_NAME', name)
commit('SET_AVATAR', avatar)
commit('SET_CMPNAME', companyName)
commit('SET_USERID', employeeid)
commit('SET_MENUS', menus)
resolve(data)
}).catch(error => {
reject(error)
})
})
}
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const getters = {
sidebar: state => state.app.sidebar,
device: state => state.app.device,
token: state => state.user.token,
avatar: state => state.user.avatar,
name: state => state.user.name,
cmpname: state => state.user.cmpname,
userid: state => state.user.userid,
menus: state => state.user.menus
}
export default getters
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3.动态生成权限路由（核心）
根据环境配置导入组件,在vue中，将菜单路径作为参数，实现路由地址的注入
在 src/router 文件夹下，建立两个文件，各只需添加一行代码, 定义导入方法
src/router/_import_development.js
//开发环境导入组件
module.exports = file => require('@/views' + file + '.vue').default // vue-loader at least v13.0.0+
---------------------------------------------------------------------
src/router/_import_production.js
//生产环境导入组件
module.exports = file => () => import('@/views' + file + '.vue')
A，组件导入 —— _import
//获取组件的方法
const _import = require('./router/_import_' + process.env.NODE_ENV)
// .......
//导入路径下的组件
route.component = _import(route.path)
B，在路由钩子中，过滤路由，并生成路由
核心在src目录下的permission.js中，router.beforeEach路由钩子
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'
import Layout from '@/layout'
const _import = require('./router/_import_' + process.env.NODE_ENV) // 获取组件的方法
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')
if (store.getters.menus.length < 1) {
global.antRouter = []
next()
}
const menus = filterAsyncRouter(store.getters.menus) // 1.过滤路由
router.addRoutes(menus) // 2.动态添加路由
global.antRouter = menus // 3.将路由数据传递给全局变量，做侧边栏菜单渲染工作
next({
...to,
replace: true
}) // hack方法 确保addRoutes已完成 ,set the replace
} 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()
})
// 遍历后台传来的路由字符串，转换为组件对象
function filterAsyncRouter(asyncRouterMap) {
const accessedRouters = asyncRouterMap.filter(route => {
if (route.component) {
if (route.component === 'Layout') {
route.component = Layout
} else {
route.component = _import(route.component) // 导入组件
}
}
if (route.children && route.children.length) {
route.children = filterAsyncRouter(route.children)
}
return true
})
return accessedRouters
}
4.最后一步，合并路由
有话要说