Vue3---Vue3的setup函数中如何使用路由

怼烎@ 2022-10-29 10:21 608阅读 0赞

*  **方式一 ：通过 getCurrentInstance 方法获取当前组件实例，从而获取 route 和 router **

<template>
      <div>
    
      </div>
    </template>
    <script>
    import { defineComponent, getCurrentInstance } from 'vue'
    
    export default defineComponent({
      name: 'About',
      setup(){
        const { proxy } = getCurrentInstance()
        console.log(proxy.$root.$route)
        console.log(proxy.$root.$router)
        return {}
      }
    })
    </script>

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5MTE1NDY5_size_16_color_FFFFFF_t_70][]

*  ** 方式二：通过从路由中导入 useRoute   useRouter  使用 route 和 router。  [官方Api][Api]**

<template>
      <div id="about">
        <commonTit :tit="'猎码士'" />
      </div>
    </template>
    <script lang="ts">
    import { defineComponent } from 'vue'
    import { useRoute, useRouter } from 'vue-router'
    
    export default defineComponent({
      setup () {
        const $route = useRoute()
        const $router = useRouter()
        console.log($route)
        console.log($router)
      }
    })
    </script>

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5MTE1NDY5_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5MTE1NDY5_size_16_color_FFFFFF_t_70 2][]

*  **组件内导航守卫函数。  [官方Api][Api 1]**
    
        <template>
          <div id="about">
            <button @click="$router.push('/scroll')">goScroll</button>
          </div>
        </template>
        <script lang="ts">
        import { defineComponent } from 'vue'
        
        export default defineComponent({
          setup () { /* */ },
          beforeRouteEnter (to, from, next) { // 组件导航守卫---前置守卫
            console.log(to)
            console.log(from)
            next()
          },
          beforeRouteLeave (to, from) { // 组件导航守卫---后置守卫
            console.log(to)
            console.log(from)
          }
        })
        </script>

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[Api]: https://next.router.vuejs.org/zh/guide/advanced/composition-api.html#%E5%9C%A8-setup-%E4%B8%AD%E8%AE%BF%E9%97%AE%E8%B7%AF%E7%94%B1%E5%92%8C%E5%BD%93%E5%89%8D%E8%B7%AF%E7%94%B1
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5MTE1NDY5_size_16_color_FFFFFF_t_70 1]: /images/20221024/f8b4f75acf5a475c95507f83b0ce40b4.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5MTE1NDY5_size_16_color_FFFFFF_t_70 2]: /images/20221024/bfef4324a2f34c369c13631963f4786b.png
[Api 1]: https://next.router.vuejs.org/zh/guide/advanced/navigation-guards.html#%E7%BB%84%E4%BB%B6%E5%86%85%E7%9A%84%E5%AE%88%E5%8D%AB