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目錄結構

router.js

import Vue from 'vue' import Router from 'vue-router' import Login from './components/Login.vue' import Home from './components/Home.vue'Vue.use(Router)const router= new Router({routes:[{path:'/',redirect:'/login'},{path:'/login',component:Login},{path:'/home',component:Home}] }) //掛載路由導航守衛 router.beforeEach((to,from,next)=>{if(to.path==='/login') return next();//獲取tokenconst tokenStr=window.sessionStorage.getItem('token')if(!tokenStr) return next('/login')next(); })export default router

login.vue

<template><div class="login_container"><div class="login_box"><div class="avatar_box"><img src="../assets/logo.png"></div><!-- 表單區域--><el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form"><!-- 登錄區域--><el-form-item prop="username"><el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input></el-form-item><el-form-item prop="password"><el-input type="password" v-model="loginForm.password" prefix-icon="iconfont icon-3702mima"></el-input></el-form-item><el-form-item class="btns"><el-button type="primary" @click="login">登錄</el-button><el-button type="info" @click="resetLoginForm">重置</el-button></el-form-item></el-form></div> </div></template><script> export default{data(){return{//這是登錄表單的數據loginForm:{username:'geyao',password:'12345678'},// 表單驗證loginFormRules: {username: [{ required: true, message: '請輸入用戶名', trigger: 'blur' },{ min: 2, max: 10, message: '長度在 2 到 10 個字符', trigger: 'blur' }],password: [{ required: true, message: '請輸入用戶密碼', trigger: 'blur' },{ min: 6, max: 18, message: '長度在 6 到 18 個字符', trigger: 'blur' }]}}},methods:{resetLoginForm(){// console.log(this)this.$refs.loginFormRef.resetFields();},login(){this.$refs.loginFormRef.validate(async valid =>{if(!valid) return;const {data:res}=await this.$http.post('login',this.loginForm);if(res.meta.status!==200) return this.$message.error('登錄失敗');this.$message.success('登錄成功');// 1、將登陸成功之后的token, 保存到客戶端的sessionStorage中; // 1.1 項目中出現了登錄之外的其他API接口，必須在登陸之后才能訪問// 1.2 token 只應在當前網站打開期間生效，所以將token保存在window.sessionStorage.setItem('token', res.data.token)// 2、通過編程式導航跳轉到后臺主頁, 路由地址為：/homethis.$router.push('/home')});}} } </script><style lang="less" scoped> .login_container {background-color: #2b4b6b;height: 100%; } .login_box {width: 450px;height: 360px;background-color: #fff;border-radius: 3px;position: absolute;left: 50%;top: 50%;-webkit-transform: translate(-50%, -50%);background-color: #fff; }.avatar_box {width: 130px;height: 130px;border: 1px solid #eee;border-radius: 50%;padding: 10px;box-shadow: 0 0 10px #ddd;position: absolute;left: 50%;transform: translate(-50%, -50%);background-color: #fff;img {width: 100%;height: 100%;border-radius: 50%;background-color: #eee;}}.login_form {position: absolute;bottom: 60px;width: 100%;padding: 0 20px;box-sizing: border-box; }.btns {display: flex;justify-content: center; } </style>

main.js

import Vue from 'vue' import App from './App.vue' import router from './router' import './plugins/element.js' //導入字體圖標 import './assets/fonts/iconfont.css' Vue.config.productionTip = false //導入全局樣式 import './assets/css/global.css'import axios from 'axios' Vue.prototype.$http=axios axios.defaults.baseURL="http://127.0.0.1:8888/api/private/v1/" Vue.config.productionTip=false; new Vue({router,render: h => h(App) }).$mount('#app')

global.css

/* 全局樣式 */ html, body, #app {height: 100%;margin: 0;padding: 0;}

element.js

import Vue from 'vue'//彈框提示 import {Message,Button,Form,FormItem,Input} from 'element-ui' Vue.use(Button), Vue.use(Form) Vue.use(FormItem) Vue.use(Input) Vue.prototype.$message=Message

Home.vue

<template> <div> <el-button type="info" @click="logout">退出</el-button> </div> </template><script> export default{methods:{logout(){window.sessionStorage.clear();this.$router.push("/login");}} }; </script><style lang="less" scoped> </style>

.prettierrc

{"semi":false,"singleQuote":true }

eslintrc.js

module.exports = {root: true,env: {node: true},extends: ['plugin:vue/essential','@vue/standard'],parserOptions: {parser: 'babel-eslint'},rules: {'no-console': process.env.NODE_ENV === 'production' ? 'warn' : 'off','no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off','space-before-function-paren':0} }

運行結果

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