我正在使用VueRouter根据URL加载模板。当我尝试使用组件中app.data中定义的属性时,会收到一个[VueWarn] Property or method "role" is not defined

如何将每个数据属性传递给子组件?

这是我的脚本:

const Home = { template: '<p>home page, {{role}}</p>' }
const NotFound = { template: '<p>Page not found</p>' }

const routes = [
    {path: '/', component: Home}
    {path: '*', component: NotFound}
]

Vue.use(VueRouter)
var app = new Vue({
    el: '#app',
    data: {
        role: 0,
        cookiesAlert: true
    },
    router: new VueRouter({routes})
})

最佳答案

我认为您的路由器构造选项设置不正确。通常,我更喜欢使用“命名路由”,因此我将设置为:

const router = new VueRouter({
   routes: [
        { name: 'role', path: '/:role', component: User },
        { path: '*', component: Home }
   ]
})


而且,如果我不正确地理解您的问题,您想要做的是通过url将父组件中的“数据”传递给子组件,并读取子组件中的数据?



const User = {
  template: '<div><br/>Role read from url is {{ $route.params.role }}</div>'
}

const Home = {
  template: '<div><br/>Welcome</div>'
}

const router = new VueRouter({
  routes: [
    { name: 'role', path: '/:role', component: User },
    { path: '*', component: Home }
  ]
})


new Vue({
  router,
  el: '#app',
  data: {
       role: 'default role'
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue-router/3.0.2/vue-router.min.js"></script>


<div id="app">


  The role is (Please change the 'role' value and click on '/User' link): <input v-model="role" type="text" /> <br/>

  <router-link :to="{ name: 'role', params: { role: role  }}">User</router-link>


  <router-link to="/">Home</router-link>

  <router-view></router-view>

</div>





或者,如果您不想使用$route.params.role,我将在路由器配置选项中将'props'设置为true。


  当props设置为true时,route.params将被设置为组件props。


const router = new VueRouter({
   routes: [
      { name: 'role', path: '/:role', component: User, props: true },
      { path: '*', component: Home }
   ]
})


并绑定到子组件内部的“道具”。

const User = {
   props: ['role'],
   template: '<div><br/>Role read from url is {{ role }}</div>'
}

关于javascript - 如何将应用程序数据传递到VueRouter组件,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/53841413/

10-12 12:41
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