The use of Vue-router in projects and its precautions
The use of Vue-router in the project and its precautions
Vue-router is the official routing manager of Vue.js, used to build single-page applications ( Single Page Application). It manages URLs and realizes refresh-free jumps between pages, helping us build more flexible and interactive front-end applications.
1. Use Vue-router
1. Install Vue-router
In the root directory of the project, use the npm command to install:
npm install vue-router
2. Configure routing
Introduce Vue-router and related components into the entry file of the project (such as main.js):
import Vue from 'vue' import VueRouter from 'vue-router' import Home from './views/Home.vue' import About from './views/About.vue' Vue.use(VueRouter) const routes = [ { path: '/', name: 'home', component: Home }, { path: '/about', name: 'about', component: About } ] const router = new VueRouter({ mode: 'history', base: process.env.BASE_URL, routes }) export default router
In the above code, we configure two routes: home and about, the corresponding components are Home and About.
3. Configure routing exit
In the root component of the project (such as App.vue), add the
<template> <div id="app"> <router-view></router-view> </div> </template>
2. Usage Example
Below we will combine a simple case to demonstrate how to use Vue-router.
Take a website for watching movies online as an example. We need to implement two pages: the homepage and the movie details page.
1. Create the homepage component
Create the Home.vue file in the src/views directory and add the following code:
<template> <div class="home"> <h1 id="欢迎来到电影在线观看网站">欢迎来到电影在线观看网站</h1> <button @click="goToDetail">查看电影详情</button> </div> </template> <script> export default { methods: { goToDetail() { this.$router.push('/detail') } } } </script>
2. Create the movie details page component
Create the Detail.vue file in the src/views directory and add the following code:
<template> <div class="detail"> <h1 id="电影详情页">电影详情页</h1> <p>电影名称:{{ movie.name }}</p> <p>导演:{{ movie.director }}</p> </div> </template> <script> export default { data() { return { movie: { name: '复仇者联盟', director: '乔·罗素' } } } } </script>
3. Configure routing
In main.js, introduce and configure the home and detail components Routing:
import Vue from 'vue' import VueRouter from 'vue-router' import Home from './views/Home.vue' import Detail from './views/Detail.vue' Vue.use(VueRouter) const routes = [ { path: '/', name: 'home', component: Home }, { path: '/detail', name: 'detail', component: Detail } ] const router = new VueRouter({ mode: 'history', base: process.env.BASE_URL, routes }) export default router
4. Run the project
Execute the npm run serve command in the command line to start the project, and then visit http://localhost:8080 in the browser to see the homepage .
Click the "View Movie Details" button to jump to the movie details page and display the movie's name and director.
3. Notes
1. Use history mode
When creating a VueRouter instance, set the mode to history mode. You can remove the # symbol in the URL to make the URL More beautiful.
const router = new VueRouter({ mode: 'history', routes })
2. Dynamic routing
Vue-router allows the use of dynamic routing to achieve more flexible page jumps. For example, you can pass the ID of a movie through a routing parameter to render detailed information about the corresponding movie in the movie details page.
// 路由配置 const routes = [ { path: '/detail/:id', name: 'detail', component: Detail } ] // 传递参数 this.$router.push('/detail/123') // 获取参数 this.$route.params.id
3. Nested routing
Vue-router supports nested routing, which can load another component inside a component to achieve a more complex page structure. For example, you can load the review component in the movie details page.
// 路由配置 const routes = [ { path: '/detail/:id', name: 'detail', component: Detail, children: [ { path: 'comment', component: Comment } ] } ]
The above is the use of Vue-router in the project and its precautions. By configuring routes and components, we can achieve refresh-free jumps between pages and improve user experience. At the same time, Vue-router also supports dynamic routing and nested routing, allowing us to build richer and more complex front-end applications. I hope this article will help you understand and use Vue-router!
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