javascript - 如何在页面刷新时在 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，它有正确的路由 '/team' 里面。 router.currentRoute.value 只是根 '/'，而不是预期的 '/team'。是否可以从 RefImpl 中获取正确的值？

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 '/'
      ...

路由器是这样设置的:

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

出现这种情况是因为刷新页面时路由器还没有完全解析初始导航，所以route指的是最初在 / 中的默认值 ( onMounted) .

Vue 路由器的 isReady() 返回 Promise当路由器完成初始导航时解决，所以你的 onMounted Hook jar await那Promise在尝试阅读 route.path 之前:

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)
    })
  },
}

demo