前言

前端用什么框架都可以，这里选择小巧的vuejs。

要实现的功能很简单：

1、登录功能，成功将服务器返回的token存在本地

2、使用带token的header访问服务器的一个资源

本次实验环境：

"dependencies": { "vue": "^2.2.1" }, "devDependencies": { "babel-core": "^6.0.0", "babel-loader": "^6.0.0", "babel-preset-latest": "^6.0.0", "cross-env": "^3.0.0", "css-loader": "^0.25.0", "file-loader": "^0.9.0", "vue-loader": "^11.1.4", "vue-template-compiler": "^2.2.1", "webpack": "^2.2.0", "webpack-dev-server": "^2.2.0" }

开发IDE：Atom

首先建一个项目

使用webpack构建

/Atom# vue init webpack-simple vue-jwt-demo.../Atom# cd vue-jwt-demo//Atom/vue-jwt-demo# cnpm install/Atom/vue-jwt-demo# npm run dev

安装插件

/Atom/vue-jwt-demo# cnpm install vue-router/Atom/vue-jwt-demo# cnpm install vue-resource

整体目录

auth.js

完成token的存取

const SERVER_URL = 'http://localhost:8081'const LOGIN_URL = SERVER_URL+'/login2'export default{ data:{ authenticated:false }, login(context,info){ context.$http.post(LOGIN_URL,info).then(function(data){ console.log(data.bodyText) localStorage.setItem('token',data.bodyText); this.authenticated = true //跳到home页 this.$router.push('home') },function(err){ console.log(err+","+err.body.message) context.error = err.body.message }) }, getAuthHeader(){ return { 'Authorization':'Bearer '+localStorage.getItem('token') } }, checkAuth(){ var token = localStorage.getItem('token') if(token){ this.authenticated = true }else{ this.authenticated = false } }}

main.js

程序入口：完成路由和初始化

import Vue from 'vue'import App from './App.vue'import Login from './component/Login.vue'import Home from './component/Home.vue'import VueRouter from 'vue-router'import VueResource from 'vue-resource'import auth from './auth/auth'Vue.use(VueRouter)Vue.use(VueResource)//在启动APP时进行校验是否有tokenauth.checkAuth()const routes= [ { path:'/',redirect:'/login' }, { path:'/login',component:Login }, { path:'/home',component:Home }]const router = new VueRouter({ routes})new Vue({ router, render: h => h(App)}).$mount('#app')

App.vue

页面载体

<template> <div id="app"> <h1>{{msg}}</h1> <router-view></router-view> </div></template><script>export default { name: 'app', data () { return { msg: 'Vue前后端分离demo' } }}</script>

Login.vue

登录页面

<template> <div> <h2>登录</h2> <p>{{ error }}</p> <div> <input type="text" placeholder="Enter your username" v-model="info.username" > </div> <div> <input type="password" placeholder="Enter your password" v-model="info.password" > </div> <button @click="submit()">登录</button> </div></template><script>import auth from '../auth/auth'export default { data() { return { info: { username: '', password: '' }, error: '' } }, methods: { submit() { var info = { username: this.info.username, password: this.info.password } auth.login(this, info) } }}</script>

效果：丑是丑了点

Home.vue

主页面，访问一个获取邮箱的请求

<template> <div id="home"> <h1>{{msg}}</h1> <button @click="getEmail()">Get Email</button> <h2>Email:{{email}}</h2> </div></template><script>import auth from '../auth/auth'export default { name: 'home', data () { return { msg: '欢迎您登录成功', email:'' } }, beforeCreate(){ //如果没有token的话需要重新登录 if(!auth.authenticated){ this.$router.push('login') } }, methods:{ getEmail(){ this.$http.get('http://localhost:8081/user/getEmail',{ headers:auth.getAuthHeader() }).then(function(re){ this.email = re.bodyText },function(){ console.log("get email error") }) } }}</script><style>#app { font-family: 'Avenir', Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-align: center; color: #2c3e50; margin-top: 60px;}h1, h2 { font-weight: normal;}a { color: #42b983;}</style>

对应在服务端：

@GetMapping("/getEmail") public String getEmail() { return "xxxx@qq.com"; }

可看到浏览器的本地存储：

代码：https://github.com/jimolonely/vue-jwt-demo

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。