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 /src
import 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, token
        if (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_Store
node_modules
/dist

# local env files
.env.local
.env.*.local

# Log files
npm-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 = false

const 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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