Vue要做权限管理该怎么做？控制到按钮级别的权限怎么做

axios.interceptors.request.use(config => { config.headers['token'] = cookie.get('token') return config }) axios.interceptors.response.use(res=>{},{response}=>{ if (response.data.code === 40099 || response.data.code === 40098) { //token过期或者错误 router.push('/login') } }) 

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const routerMap = [
  {
    path: '/permission', component: Layout, redirect: '/permission/index', alwaysShow: true, // will always show the root menu meta: { title: 'permission', icon: 'lock', roles: ['admin', 'editor'] // you can set roles in root nav }, children: [{ path: 'page', component: () => import('@/views/permission/page'), name: 'pagePermission', meta: { title: 'pagePermission', roles: ['admin'] // or you can only set roles in sub nav } }, { path: 'directive', component: () => import('@/views/permission/directive'), name: 'directivePermission', meta: { title: 'directivePermission' // if do not set roles, means: this page does not require permission } }] }] 

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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' // getToken from cookie NProgress.configure({ showSpinner: false })// NProgress Configuration // permission judge function function hasPermission(roles, permissionRoles) { if (roles.indexOf('admin') >= 0) return true // admin permission passed directly if (!permissionRoles) return true return roles.some(role => permissionRoles.indexOf(role) >= 0) } const whiteList = ['/login', '/authredirect']// no redirect whitelist router.beforeEach((to, from, next) => { NProgress.start() // start progress bar if (getToken()) { // determine if there has token /* has token*/ if (to.path === '/login') { next({ path: '/' }) NProgress.done() // if current page is dashboard will not trigger afterEach hook, so manually handle it } else { if (store.getters.roles.length === 0) { // 判断当前用户是否已拉取完user_info信息 store.dispatch('GetUserInfo').then(res => { // 拉取user_info const roles = res.data.roles // note: roles must be a array! such as: ['editor','develop'] store.dispatch('GenerateRoutes', { roles }).then(() => { // 根据roles权限生成可访问的路由表 router.addRoutes(store.getters.addRouters) // 动态添加可访问路由表 next({ ...to, replace: true }) // hack方法 确保addRoutes已完成 ,set the replace: true so the navigation will not leave a history record }) }).catch((err) => { store.dispatch('FedLogOut').then(() => { Message.error(err || 'Verification failed, please login again') next({ path: '/' }) }) }) } else { // 没有动态改变权限的需求可直接next() 删除下方权限判断 ↓ if (hasPermission(store.getters.roles, to.meta.roles)) { next()// } else { next({ path: '/401', replace: true, query: { noGoBack: true }}) } // 可删 ↑ } } } else { /* has no token*/ if (whiteList.indexOf(to.path) !== -1) { // 在免登录白名单，直接进入 next() } else { next('/login') // 否则全部重定向到登录页 NProgress.done() // if current page is login will not trigger afterEach hook, so manually handle it } } }) router.afterEach(() => { NProgress.done() // finish progress bar }) 

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{
    name: "login", path: "/login", component: () => import("@/pages/Login.vue") } 

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function hasPermission(router, accessMenu) { if (whiteList.indexOf(router.path) !== -1) { return true; } let menu = Util.getMenuByName(router.name, accessMenu); if (menu.name) { return true; } return false; } Router.beforeEach(async (to, from, next) => { if (getToken()) { let userInfo = store.state.user.userInfo; if (!userInfo.name) { try { await store.dispatch("GetUserInfo") await store.dispatch('updateAccessMenu') if (to.path === '/login') { next({ name: 'home_index' }) } else { //Util.toDefaultPage([...routers], to.name, router, next); next({ ...to, replace: true })//菜单权限更新完成,重新进一次当前路由 } } catch (e) { if (whiteList.indexOf(to.path) !== -1) { // 在免登录白名单，直接进入 next() } else { next('/login') } } } else { if (to.path === '/login') { next({ name: 'home_index' }) } else { if (hasPermission(to, store.getters.accessMenu)) { Util.toDefaultPage(store.getters.accessMenu,to, routes, next); } else { next({ path: '/403',replace:true }) } } } } else { if (whiteList.indexOf(to.path) !== -1) { // 在免登录白名单，直接进入 next() } else { next('/login') } } let menu = Util.getMenuByName(to.name, store.getters.accessMenu); Util.title(menu.title); }); Router.afterEach((to) => { window.scrollTo(0, 0); }); 

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const Home = () => import("../pages/Home.vue"); const UserInfo = () => import("../pages/UserInfo.vue"); export default { home: Home, userInfo: UserInfo }; 

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[
    {
        name: "home", path: "/", component: "home" }, { name: "home", path: "/userinfo", component: "userInfo" } ] 

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{
    path: '/permission', component: Layout, name: '权限测试', meta: { btnPermissions: ['admin', 'supper', 'normal'] }, //页面需要的权限 children: [{ path: 'supper', component: _import('system/supper'), name: '权限测试页', meta: { btnPermissions: ['admin', 'supper'] } //页面需要的权限 }, { path: 'normal', component: _import('system/normal'), name: '权限测试页', meta: { btnPermissions: ['admin'] } //页面需要的权限 }] } 

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import Vue from 'vue'
/**权限指令**/
const has = Vue.directive('has', { bind: function (el, binding, vnode) { // 获取页面按钮权限 let btnPermissionsArr = []; if(binding.value){ // 如果指令传值，获取指令参数，根据指令参数和当前登录人按钮权限做比较。 btnPermissionsArr = Array.of(binding.value); }else{ // 否则获取路由中的参数，根据路由的btnPermissionsArr和当前登录人按钮权限做比较。 btnPermissionsArr = vnode.context.$route.meta.btnPermissions; } if (!Vue.prototype.$_has(btnPermissionsArr)) { el.parentNode.removeChild(el); } } }); // 权限检查方法 Vue.prototype.$_has = function (value) { let isExist = false; // 获取用户按钮权限 let btnPermissionsStr = sessionStorage.getItem("btnPermissions"); if (btnPermissionsStr == undefined || btnPermissionsStr == null) { return false; } if (value.indexOf(btnPermissionsStr) > -1) { isExist = true; } return isExist; }; export {has} 

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<el-button @click='editClick' type="primary" v-has>编辑</el-button> 

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