vue中的使用token的方法示例

初始于登录页面

Home.vue

<template> <div class='home'> </div></template><script>// @ is an alias to /srcimport HelloWorld from ’@/components/HelloWorld.vue’import axios from ’axios’;export default { name: ’home’, components: { HelloWorld }, created(){ axios.get(’/api/userinfo’).then(res=>console.log(res.data)) }}</script>

About.vue

<template> <div class='about'> <h1>This is an about page</h1> </div></template>

login.vue

<template> <div> <div class='logo'> <img src='https://img.kaikeba.com/logo-new.png' alt> </div> <!-- <cube-button>登录</cube-button> --> <cube-form :model='model' :schema='schema' @submit.prevent='handleLogin' @validate='handleValidate' ></cube-form> </div></template><script>export default { data() { return { model: { username: '', password: '' }, schema: { fields: [ { type: 'input', modelKey: 'username', label: '用户名', props: { placeholder: '请输入用户名' }, rules: { required: true }, trigger: 'blur' }, { type: 'input', modelKey: 'password', label: '密码', props: { placeholder: '请输入密码', type: 'password', eye: { open: true } }, rules: { required: true }, trigger: 'blur' }, { type: 'submit', label: '登录' } ] } }; }, methods: { handleValidate(ret) { console.log(ret); }, handleLogin(e) { // 登录请求 this.$store.dispatch('login', this.model).then(success => { if (success) { const path = this.$route.query.redirect || ’/’ this.$router.push(path) } }).catch(error => { const toast = this.$createToast({ time:2000, txt:’登录失败’, type:’error’ }).show(); }); } }};</script><style scoped></style>

/service/user

import axios from 'axios';export default { login(user) { return axios.get('/api/login', { params: user }) .then(({ data }) => data); }};

App.vue

<template> <div id='app'> <div id='nav'> <router-link to='/'>Home</router-link> | <router-link to='/about'>About</router-link> <button v-if='$store.state.user.isLogin' @click='logout'>注销</button> </div> <router-view/> </div></template><script>export default { methods: { logout() { this.$store.dispatch(’logout’) } },}</script><style>#app { font-family: 'Avenir', Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-align: center; color: #2c3e50;}</style>

cube-ui组件的引用 cube-ui.js

import Vue from ’vue’// By default we import all the components.// Only reserve the components on demand and remove the rest.// Style is always required.import { /* eslint-disable no-unused-vars */ Style, // basic Button, Loading, Tip, Toolbar, TabBar, TabPanels, // form Checkbox, CheckboxGroup, Checker, Radio, RadioGroup, Input, Textarea, Select, Switch, Rate, Validator, Upload, Form, // popup Popup, Toast, Picker, CascadePicker, DatePicker, TimePicker, SegmentPicker, Dialog, ActionSheet, Drawer, ImagePreview, // scroll Scroll, Slide, IndexList, Swipe, Sticky, ScrollNav, ScrollNavBar} from ’cube-ui’Vue.use(Button)Vue.use(Loading)Vue.use(Tip)Vue.use(Toolbar)Vue.use(TabBar)Vue.use(TabPanels)Vue.use(Checkbox)Vue.use(CheckboxGroup)Vue.use(Checker)Vue.use(Radio)Vue.use(RadioGroup)Vue.use(Input)Vue.use(Textarea)Vue.use(Select)Vue.use(Switch)Vue.use(Rate)Vue.use(Validator)Vue.use(Upload)Vue.use(Form)Vue.use(Popup)Vue.use(Toast)Vue.use(Picker)Vue.use(CascadePicker)Vue.use(DatePicker)Vue.use(TimePicker)Vue.use(SegmentPicker)Vue.use(Dialog)Vue.use(ActionSheet)Vue.use(Drawer)Vue.use(ImagePreview)Vue.use(Scroll)Vue.use(Slide)Vue.use(IndexList)Vue.use(Swipe)Vue.use(Sticky)Vue.use(ScrollNav)Vue.use(ScrollNavBar)

cube-ui的样式 theme.styl

@require '~cube-ui/src/common/stylus/var/color.styl'// action-sheet$action-sheet-color := $color-grey$action-sheet-active-color := $color-orange$action-sheet-bgc := $color-white$action-sheet-active-bgc := $color-light-grey-opacity$action-sheet-title-color := $color-dark-grey$action-sheet-space-bgc := $color-mask-bg/// picker style$action-sheet-picker-cancel-color := $color-light-grey$action-sheet-picker-cancel-active-color := $color-light-grey-s// bubble// button$btn-color := $color-white$btn-bgc := $color-regular-blue$btn-bdc := $color-regular-blue$btn-active-bgc := $color-blue$btn-active-bdc := $color-blue$btn-disabled-color := $color-white$btn-disabled-bgc := $color-light-grey-s$btn-disabled-bdc := $color-light-grey-s/// primary$btn-primary-color := $color-white$btn-primary-bgc := $color-orange$btn-primary-bdc := $color-orange$btn-primary-active-bgc := $color-dark-orange$btn-primary-active-bdc := $color-dark-orange/// light$btn-light-color := $color-grey$btn-light-bgc := $color-light-grey-sss$btn-light-bdc := $color-light-grey-sss$btn-light-active-bgc := $color-active-grey$btn-light-active-bdc := $color-active-grey/// outline$btn-outline-color := $color-grey$btn-outline-bgc := transparent$btn-outline-bdc := $color-grey$btn-outline-active-bgc := $color-grey-opacity$btn-outline-active-bdc := $color-grey/// outline-primary$btn-outline-primary-color := $color-orange$btn-outline-primary-bgc := transparent$btn-outline-primary-bdc := $color-orange$btn-outline-primary-active-bgc := $color-orange-opacity$btn-outline-primary-active-bdc := $color-dark-orange// toolbar$toolbar-bgc := $color-light-grey-sss$toolbar-active-bgc := $color-active-grey// checkbox$checkbox-color := $color-grey$checkbox-icon-color := $color-light-grey-s/// checked$checkbox-checked-icon-color := $color-orange$checkbox-checked-icon-bgc := $color-white/// disabled$checkbox-disabled-icon-color := $color-light-grey-ss$checkbox-disabled-icon-bgc := $color-light-grey-ss// checkbox hollow$checkbox-hollow-checked-icon-color := $color-orange$checkbox-hollow-disabled-icon-color := $color-light-grey-ss// checkbox-group$checkbox-group-bgc := $color-white$checkbox-group-horizontal-bdc := $color-light-grey-s// radio$radio-group-bgc := $color-white$radio-group-horizontal-bdc := $color-light-grey-s$radio-color := $color-grey$radio-icon-color := $color-light-grey-s/// selected$radio-selected-icon-color := $color-white$radio-selected-icon-bgc := $color-orange/// disabled$radio-disabled-icon-bgc := $color-light-grey-ss// radio hollow$radio-hollow-selected-icon-color := $color-orange$radio-hollow-disabled-icon-color := $color-light-grey-ss// dialog$dialog-color := $color-grey$dialog-bgc := $color-white$dialog-icon-color := $color-regular-blue$dialog-icon-bgc := $color-background$dialog-title-color := $color-dark-grey$dialog-close-color := $color-light-grey$dialog-btn-color := $color-light-grey$dialog-btn-bgc := $color-white$dialog-btn-active-bgc := $color-light-grey-opacity$dialog-btn-highlight-color := $color-orange$dialog-btn-highlight-active-bgc := $color-light-orange-opacity$dialog-btn-disabled-color := $color-light-grey$dialog-btn-disabled-active-bgc := transparent$dialog-btns-split-color := $color-row-line// index-list$index-list-bgc := $color-white$index-list-title-color := $color-dark-grey$index-list-anchor-color := $color-light-grey$index-list-anchor-bgc := #f7f7f7$index-list-item-color := $color-dark-grey$index-list-item-active-bgc := $color-light-grey-opacity$index-list-nav-color := $color-grey$index-list-nav-active-color := $color-orange// loading// picker$picker-bgc := $color-white$picker-title-color := $color-dark-grey$picker-subtitle-color := $color-light-grey$picker-confirm-btn-color := $color-orange$picker-confirm-btn-active-color := $color-light-orange$picker-cancel-btn-color := $color-light-grey$picker-cancel-btn-active-color := $color-light-grey-s$picker-item-color := $color-dark-grey// popup$popup-mask-bgc := rgb(37, 38, 45)$popup-mask-opacity := .4//scroll// slide$slide-dot-bgc := $color-light-grey-s$slide-dot-active-bgc := $color-orange// time-picker// tip$tip-color := $color-white$tip-bgc := $color-dark-grey-opacity// toast$toast-color := $color-light-grey-s$toast-bgc := rgba(37, 38, 45, 0.9)// upload$upload-btn-color := $color-grey$upload-btn-bgc := $color-white$upload-btn-active-bgc := $color-light-grey-opacity$upload-btn-box-shadow := 0 0 6px 2px $color-grey-opacity$upload-btn-border-color := #e5e5e5$upload-file-bgc := $color-white$upload-file-remove-color := rgba(0, 0, 0, .8)$upload-file-remove-bgc := $color-white$upload-file-state-bgc := $color-mask-bg$upload-file-success-color := $color-orange$upload-file-error-color := #f43530$upload-file-status-bgc := $color-white$upload-file-progress-color := $color-white// switch$switch-on-bgc := $color-orange$switch-off-bgc := $color-white$switch-off-border-color := #e4e4e4// input$input-color := $color-grey$input-bgc := $color-white$input-border-color := $color-row-line$input-focus-border-color := $color-orange$input-placeholder-color := $color-light-grey-s$input-clear-icon-color := $color-light-grey//textarea$textarea-color := $color-grey$textarea-bgc := $color-white$textarea-border-color := $color-row-line$textarea-focus-border-color := $color-orange$textarea-outline-color := $color-orange$textarea-placeholder-color := $color-light-grey-s$textarea-indicator-color := $color-light-grey-s// validator$validator-msg-def-color := #e64340// select$select-color := $color-grey$select-bgc := $color-white$select-disabled-color := #b8b8b8$select-disabled-bgc := $color-light-grey-opacity$select-border-color := $color-light-grey-s$select-border-active-color := $color-orange$select-icon-color := $color-light-grey$select-placeholder-color := $color-light-grey-s// swipe$swipe-btn-color := $color-white// form$form-color := $color-grey$form-bgc := $color-white$form-invalid-color := #e64340$form-group-legend-color := $color-light-grey$form-group-legend-bgc := $color-background$form-label-required-color := #e64340// drawer$drawer-color := $color-dark-grey$drawer-title-bdc := $color-light-grey-ss$drawer-title-bgc := $color-white$drawer-panel-bgc := $color-white$drawer-item-active-bgc := $color-light-grey-opacity// scroll-nav$scroll-nav-bgc := $color-white$scroll-nav-color := $color-grey$scroll-nav-active-color := $color-orange// image-preview$image-preview-counter-color := $color-white// tab-bar & tab-panel$tab-color := $color-grey$tab-active-color := $color-dark-orange$tab-slider-bgc := $color-dark-orange

axios 请求响应拦截器 interceptor.js

import axios from 'axios';export default function(vm) { axios.interceptors.request.use(config => { const token = localStorage.getItem('token'); if (token) { config.headers.Authorization = 'Bearer ' + token; } return config; }); axios.interceptors.response.use(null, err => { if (err.response.status === 401) { // 清空 vm.$store.dispatch('logout'); // 跳转 vm.$router.push('/login'); } return Promise.reject(err); });}

路由守卫 路由 router.js

import Vue from 'vue';import Router from 'vue-router';import Home from './views/Home.vue';import Login from './views/Login.vue';Vue.use(Router);const router = new Router({ mode: 'history', base: process.env.BASE_URL, routes: [ { path: '/', name: 'home', component: Home }, { path: '/login', name: 'login', component: Login }, { path: '/about', name: 'about', meta: { auth: true }, // route level code-splitting // this generates a separate chunk (about.[hash].js) for this route // which is lazy-loaded when the route is visited. component: () => import(/* webpackChunkName: 'about' */ './views/About.vue') } ]});router.beforeEach((to, from, next) => { if (to.meta.auth) { // 只要本地有token就认为登录了 const token = localStorage.getItem('token'); if (token) { next(); } else { // 未登录 next({ path: '/login', query: { redirect: to.path } }); } } else { next(); }});export default router;

mock数据 或mock-easy vue.config.js

module.exports = { css: { loaderOptions: { stylus: { 'resolve url': true, import: ['./src/theme'] } } }, pluginOptions: { 'cube-ui': { postCompile: true, theme: false } }, configureWebpack: { devServer: { proxy: { '/api': { target: 'http://127.0.0.1:3000/', changOrigin: true } }, // before(app) { // app.get('/api/login', (req, res) => { // const { username, password } = req.query; // if (username === 'kaikeba' && password === '123') { // res.json({ code: 1, token: 'jilei' }); // } else { // res.status(401).json({ code: 0, message: '用户名或密码错误' }); // } // }); // 中间件函数 // function auth(req, res, next) { // if (req.headers.token) { // next(); // } else { // res.status(401); 如果设置这个 只是设置状态，并没有返回前端，会导致前端等待状态res.sendStatus(401) 这个正确的 // } // } // app.get('/api/userinfo', auth, (req, res) => { // res.json({ code: 1, data: { name: 'Jerry' } }); // }); // } } }};

登录动作，store.js

index.js

import user from ’./user’Vue.use(Vuex)export default new Vuex.Store({ modules: {user}})

user.js

import us from ’@/service/user’export default { state: { isLogin: !!localStorage.getItem('token') }, mutations: { setLoginState(state, val) { state.isLogin = val; } }, actions: { login({commit}, userInfo) { return us.login(userInfo).then(({token}) => {// code, tokenif (token) { // 登录成功 commit(’setLoginState’, true) localStorage.setItem(’token’, token) return true}return false }) }, logout({commit}){ localStorage.removeItem(’token’) commit(’setLoginState’, false) } }}

gitignore

.DS_Storenode_modules/dist# local env files.env.local.env.*.local# Log filesnpm-debug.log*yarn-debug.log*yarn-error.log*# Editor directories and files.idea.vscode*.suo*.ntvs**.njsproj*.sln*.sw*

main.js

import Vue from ’vue’import ’./cube-ui’import App from ’./App.vue’import store from ’./store’import router from ’./router’import interceptor from ’./interceptor’Vue.config.productionTip = falseconst app = new Vue({ store, router, render: h => h(App)}).$mount(’#app’);interceptor(app);

深入理解令牌机制

Bearer Token规范概念：描述在http访问OAuth2保护资源时如何使用令牌的规范特点：令牌就是身份证明，无需证明令牌的所有权具体规定：在请求头中定义Authorization

Authorization: Bearer <token>

Json Web Token规范概念：令牌的具体定义方式规定：令牌由三部分构成 “头”，“载荷”，“签名”头：包含加密算法。令牌类型等信息载荷：包含用户信息。签发时间和过期时间等信息，base64编码签名：根据头 和载荷及秘钥加密得到的哈希串Hmac Sha1 256

server/server.js

const Koa = require('koa');const Router = require('koa-router');const jwt = require('jsonwebtoken');const jwtAuth = require('koa-jwt');const secret = 'it’s a secret';const app = new Koa();const router = new Router();router.get('/api/login', async ctx => {const { username, passwd } = ctx.query;console.log(username, passwd);if (username == 'kaikeba' && passwd == '123') {// 生成令牌const token = jwt.sign({data: { name: 'kaikeba' }, // 用户信息数据exp: Math.floor(Date.now() / 1000) + 60 * 60 // 过期时},secret);ctx.body = { code: 1, token };} else {ctx.status = 401;ctx.body = { code: 0, message: '用户名或者密码错误' };}});router.get('/api/userinfo',jwtAuth({ secret }),async ctx => {ctx.body = { code: 1, data: { name: 'jerry', age: 20 } };});app.use(router.routes());app.listen(3000);

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