vue router如何实现
Vue Router 实现步骤
安装 Vue Router 依赖包：
npm install vue-router在项目中引入并配置路由：
import { createRouter, createWebHistory } from 'vue-router'
import Home from './views/Home.vue'
import About from './views/About.vue'
const routes = [
{ path: '/', component: Home },
{ path: '/about', component: About }
]
const router = createRouter({
history: createWebHistory(),
routes
})在 main.js 中挂载路由：
import { createApp } from 'vue'
import App from './App.vue'
import router from './router'
const app = createApp(App)
app.use(router)
app.mount('#app')在组件中使用路由链接和视图：
<template>
<router-link to="/">Home</router-link>
<router-link to="/about">About</router-link>
<router-view></router-view>
</template>动态路由实现
定义带参数的路由：
const routes = [
{ path: '/user/:id', component: User }
]在组件中获取路由参数：
import { useRoute } from 'vue-router'
const route = useRoute()
console.log(route.params.id)嵌套路由配置
定义子路由：
const routes = [
{
path: '/parent',
component: Parent,
children: [
{ path: 'child', component: Child }
]
}
]在父组件中添加子路由视图：
<template>
<router-view></router-view>
</template>路由导航守卫
全局前置守卫：
router.beforeEach((to, from, next) => {
// 逻辑处理
next()
})组件内守卫：
import { onBeforeRouteLeave } from 'vue-router'
onBeforeRouteLeave((to, from) => {
// 离开路由前的逻辑
})路由懒加载
使用动态导入实现懒加载：
const routes = [
{
path: '/lazy',
component: () => import('./views/Lazy.vue')
}
]编程式导航
在组件中进行路由跳转：
import { useRouter } from 'vue-router'
const router = useRouter()
router.push('/path')
router.replace('/path')
router.go(1)路由元信息
定义路由元字段：
const routes = [
{
path: '/admin',
component: Admin,
meta: { requiresAuth: true }
}
]在导航守卫中使用元信息：
router.beforeEach((to, from, next) => {
if (to.meta.requiresAuth && !isAuthenticated) {
next('/login')
} else {
next()
}
})
