Master the installation and use of vue-router in one article
This article brings you relevant knowledge about vue, which mainly introduces the relevant knowledge about the installation and use of vue-router. Let’s take a look at it together. I hope it will be helpful to everyone.
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vue-router Installation and use
1. Installation
Step 1: Install vue-router
npm install vue-router --save
Step 2: Use it in modular projects (because It is a plug-in, so you can install the routing function through Vue.use())
Import the routing object and call
Vue.use(VueRouter)
Create routing instance and pass in routing mapping configuration
in Vue instancemountcreated routing instance
2. The configuration file of the router created using
is located in index.js# under the
router folder under src. ##The content in the file
Note: Although the router has been registered here, it needs to be hung. It only works on vue.
Mounting method:
Introducerouter in
main.js under the src file, and Mounted on the
vue instance.
//main.js import Vue from 'vue' import App from './App' import router from './router' Vue.config.productionTip = false /* eslint-disable no-new */ new Vue({ el: '#app', router, render: h => h(App) })
<template> <div> <h2 id="我是app组件">我是app组件</h2> <!-- 通过router自带标签实现 --> <router-link>首页</router-link> <router-link>关于</router-link> <router-link>用户</router-link> <router-link>档案</router-link> <!-- <router-link to='/home' tag="button" replace>首页</router-link> <router-link to='/about' tag="button" replace >关于</router-link>--> <!-- 通过代码跳转 --> <!-- <button @click="homeClick">首页</button> <button @click="aboutClick">关于</button> --> <keep-alive> <router-view></router-view> </keep-alive> <button>用户2</button> <button>档案</button> </div> </template> <script> export default { name: "App", data(){ return{ userId:'yzk' } }, methods: { aboutClick() { // 通过代码的方式修改路由 vue-router // 不能如下操作:此操作会绕过路由进行修改,违背初衷 // history.pushState({},'','home') // this.$router.push("/home"); this.$router.replace("/home"); console.log("about"); }, homeClick() { // this.$router.push("/about"); this.$router.replace("/about"); console.log("home"); }, userClick(){ this.$router.push('/user/'+this.userId); }, profileClick(){ this.$router.push({ path:'/profile', query:{ name:'kobe', age:18, height:1.98 } }) } }, }; </script> <style> .router-link-active { color: red; } .active { color: pink; } </style>
// 配置路由信息 import Vue from 'vue' import VueRouter from 'vue-router' // import Home from '../components/Home' // import About from '../components/About' // import User from '../components/User' // 懒加载,提高效率(因为app.js文件中集成了所有的业务代码,因此请求事件可能较长 // 通过将app.js分隔,在需要使用某些js代码的时候,才接收其代码) const Home = () => import('../components/Home') const HomeNews = () => import('../components/HomeNews') const HomeMessage = () => import('../components/HomeMessage') const About = () => import('../components/About') const User = () => import('../components/User') const Profile = () => import('../components/Profile') // 1.通过Vue.use(插件),安装插件 Vue.use(VueRouter) // 2.创建VueRouter对象 const routes = [ { path: '', // component: Home // 重定向redirect redirect: '/home' }, { path: '/home', component: Home, meta: { title: "首页" }, children: [ { path: '', redirect: 'news' }, { path: 'news', // 注意这里是没有s的!!! component: HomeNews, }, { path: 'message', component: HomeMessage }, ] }, { path: '/about', component: About, meta: { title: "关于" }, }, { path: '/user/:userId', component: User, meta: { title: "用户" }, }, { path: '/profile', component: Profile, meta: { title: "档案" }, } ] const router = new VueRouter({ // 配置路由和组件间的映射关系 routes, mode: 'history', linkActiveClass: 'active' }) // 3.将router对象传入到Vue实例中 export default router // 导航守卫 前置钩子 router.beforeEach((to, from, next) => { document.title = to.matched[0].meta.title console.log('+++'); next() }) // 导航守卫, 后置钩子 不需要调用next函数 router.afterEach((to,from) => { console.log('----'); })
import Vue from 'vue' import App from './App' import router from './router' Vue.config.productionTip = false /* eslint-disable no-new */ new Vue({ el: '#app', router, render: h => h(App) })
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