vue实现导航页面

Vue 实现导航页面

使用 Vue Router 创建导航

安装 Vue Router 依赖：

npm install vue-router

在项目中配置路由（通常在 src/router/index.js 中）：

import { createRouter, createWebHistory } from 'vue-router'
import Home from '../views/Home.vue'
import About from '../views/About.vue'

const routes = [
  { path: '/', name: 'Home', component: Home },
  { path: '/about', name: 'About', component: About }
]

const router = createRouter({
  history: createWebHistory(),
  routes
})

export default router

在组件中添加导航菜单

在 App.vue 或布局组件中添加导航链接：

<template>
  <nav>
    <router-link to="/">Home</router-link>
    <router-link to="/about">About</router-link>
  </nav>
  <router-view/>
</template>

动态导航菜单实现

通过数据驱动的方式生成导航菜单：

<script>
export default {
  data() {
    return {
      menuItems: [
        { path: '/', name: 'Home' },
        { path: '/about', name: 'About' },
        { path: '/contact', name: 'Contact' }
      ]
    }
  }
}
</script>

<template>
  <nav>
    <router-link 
      v-for="item in menuItems" 
      :key="item.path" 
      :to="item.path"
    >
      {{ item.name }}
    </router-link>
  </nav>
</template>

嵌套路由实现

配置嵌套路由：

const routes = [
  {
    path: '/user',
    component: UserLayout,
    children: [
      { path: '', component: UserProfile },
      { path: 'posts', component: UserPosts }
    ]
  }
]

导航守卫

实现路由权限控制：

router.beforeEach((to, from, next) => {
  const isAuthenticated = checkAuth()
  if (to.meta.requiresAuth && !isAuthenticated) {
    next('/login')
  } else {
    next()
  }
})

响应式导航栏

实现移动端友好的响应式导航：

<template>
  <div class="nav-container">
    <button @click="toggleMenu">☰</button>
    <div :class="['nav-links', { 'show': isMenuOpen }]">
      <router-link 
        v-for="item in menuItems" 
        :key="item.path" 
        :to="item.path"
        @click="isMenuOpen = false"
      >
        {{ item.name }}
      </router-link>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      isMenuOpen: false
    }
  },
  methods: {
    toggleMenu() {
      this.isMenuOpen = !this.isMenuOpen
    }
  }
}
</script>

<style>
.nav-links {
  display: none;
}
.nav-links.show {
  display: block;
}
@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
  button {
    display: none;
  }
}
</style>

面包屑导航

实现路径导航提示：

<template>
  <div class="breadcrumbs">
    <span v-for="(crumb, index) in crumbs" :key="index">
      <router-link :to="crumb.path">{{ crumb.name }}</router-link>
      <span v-if="index < crumbs.length - 1"> / </span>
    </span>
  </div>
</template>

<script>
export default {
  computed: {
    crumbs() {
      const pathArray = this.$route.path.split('/')
      return pathArray.map((path, i) => {
        return {
          name: path || 'Home',
          path: pathArray.slice(0, i + 1).join('/') || '/'
        }
      })
    }
  }
}
</script>