[toc] ### 一、 将token通过headers头发送给后台 ``` //request.js service.interceptors.request.use( config => { // do something before request is sent if (store.getters.token) { // let each request carry token // ['X-Token'] is a custom headers key // please modify it according to the actual situation config.headers['token'] = getToken() } return config }, error => { // do something with request error console.log(error) // for debug return Promise.reject(error) } ) ``` ### 二、处理错误的提示信息 ``` //vuex user.js // roles must be a non-empty array if (!roles) { reject('getInfo: roles must be a non-null array!') } ``` ### 三、解决反复请求的问题 - 删除浏览器的cookie ### 四、存储menus ``` const state = { token: getToken(), name: '', avatar: '', introduction: '', roles: [], menus : [] } const mutations = { SET_TOKEN: (state, token) => { state.token = token }, SET_INTRODUCTION: (state, introduction) => { state.introduction = introduction }, SET_NAME: (state, name) => { state.name = name }, SET_AVATAR: (state, avatar) => { state.avatar = avatar }, SET_ROLES: (state, roles) => { state.roles = roles }, SET_MENUS: (state, menus) => { state.menus = menus } } 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) { reject('Verification failed, please Login again.') } const { roles, name, avatar, introduction,menus } = data // roles must be a non-empty array if (!roles) { reject('getInfo: roles must be a non-null array!') } commit('SET_ROLES', roles) commit("SET_MENUS",menus) commit('SET_NAME', name) commit('SET_AVATAR', avatar) commit('SET_INTRODUCTION', introduction) resolve(data) }).catch(error => { reject(error) }) }) }, // user logout logout({ commit, state, dispatch }) { return new Promise((resolve, reject) => { logout(state.token).then(() => { commit('SET_TOKEN', '') commit('SET_ROLES', []) commit('SET_MENUS', []) removeToken() resetRouter() // reset visited views and cached views // to fixed https://github.com/PanJiaChen/vue-element-admin/issues/2485 dispatch('tagsView/delAllViews', null, { root: true }) resolve() }).catch(error => { reject(error) }) }) }, // remove token resetToken({ commit }) { return new Promise(resolve => { commit('SET_TOKEN', '') commit('SET_ROLES', []) commit('SET_MENUS', []) removeToken() resolve() }) }, ``` ### 五、解决数据反复请求的问题 ``` //permission.js 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', '/auth-redirect'] // 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() // hack: https://github.com/PanJiaChen/vue-element-admin/pull/2939 } else { // determine whether the user has obtained his permission roles through getInfo const hasRoles = store.getters.roles && store.getters.roles.length > 0 if (hasRoles) { next() } else if(to.path == "/"){ //拿到头像信息等 await store.dispatch("user/getInfo"); next() //关闭进度条 return NProgress.done() }else { try { // get user info // note: roles must be a object array! such as: ['admin'] or ,['developer','editor'] const { roles,menus } = await store.dispatch('user/getInfo') // generate accessible routes map based on roles const accessRoutes = await store.dispatch('permission/generateRoutes', roles) if(roles.length == 0 && menus.length == 0 ){ Message.error("你没有访问权限"); //回到上一页 next({ ...from }) //关闭进度条 return NProgress.done() } // dynamically add accessible routes router.addRoutes(accessRoutes) // hack method to ensure that addRoutes is complete // set the replace: true, so the navigation will not leave a history record next({ ...to, replace: true }) } 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() }) ``` ### 六、创建网校页面和网校路由 ``` { path: '/login', component: () => import('@/views/login/index'), hidden: true }, { path: '/', component: () => import ('@/views/school/index'), hidden: true }, ``` ### 七、实现网校页面布局 ``` //school/index.vue <navbar :showSidebar="false"></navbar> //navBar.vue <img :src="avatar || 'https://wpimg.wallstcn.com/f778738c-e4f8-4870-b634-56703b4acafe.gif?imageView2/1/w/80/h/80' " class="user-avatar"> ```