页面刷新时如何在 onMounted 中获取当前路由？

Question

重新加载页面时，我想获取当前路线。可悲的是

route.name

是

undefined

，

router.currentRoute

是

RefImpl

对象，其内部有

'/team'

且具有正确的路线。

router.currentRoute.value

只是根

'/'

，而不是预期的

'/team'

。是否可以从

RefImpl

获得正确的值？

import { useRouter, useRoute } from 'vue-router'

export default {
  name: 'Canvas',
  components: { Ring2, Map },
  setup() {
    const router = useRouter()
    const route = useRoute()

    onMounted(() => {

      console.log(route.name) //undefined
      console.log(router.currentRoute) //RefImpl with correct value ('/team')
      console.log(router.currentRoute.value) // route is '/'
      const rawObject = {...router.currentRoute}
      console.log(rawObject) // value is '/'
      ...

路由器设置如下：

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

const routes = [
  {
    path: '/',
    name: 'Home',
    component: Home
  },
  {
    path: '/team',
    name: 'Team',
    component: () => import('../views/Team.vue')
  },
   ...
]

const router = createRouter({
  history: createWebHistory(process.env.BASE_URL),
  routes
})

export default router

Answer 1

发生这种情况是因为刷新页面时路由器尚未完全解析初始导航，因此

route

指的是

/

中最初的默认值 (

onMounted

)。

Vue Router 的

isReady()

返回一个

Promise

，当路由器完成初始导航时解析，因此你的

onMounted

钩子可以在尝试读取

await

之前

Promise

route.path

:

import { useRoute, useRouter } from 'vue-router'
import { onMounted } from 'vue'

export default {
  setup() {
    const route = useRoute()
    const router = useRouter()

    onMounted(async () => {
      await router.isReady() 👈
      console.log('route.path', route.path)
    })
  },
}

演示

Answer 2

尝试使用可组合函数 useRoute :

import {
   useRoute
} from 'vue-router'
import {
   computed
} from 'vue'


setup() {
   const route = useRoute();

   const path = computed(() => route.path)
}