vue-router：嵌套命名视图问题。附加组件不可见

Question

我在 vue-router 文档中找到了这个例子：

https://jsfiddle.net/posva/22wgksa3/?fbclid=IwAR2WITnr6cmA_3rUgOCCvPrHASKfSW9QsvEKv4HrxBmuDUN1VmWSWufCtAI

const router = new VueRouter({
   mode: 'history',
   routes: [{ 
       path: '/settings',
       // You could also have named views at tho top
       component: UserSettings,
       children: [{
           path: 'emails',
           component: UserEmailsSubscriptions
           }, {
           path: 'profile',
           components: {
               default: UserProfile,
               helper: UserProfilePreview
           }
       }]
   }]
})

我试过这样做：

https://jsfiddle.net/pt9o6h8e/

const router = new VueRouter({
   mode: 'history',
   routes: [{ 
       path: '/settings',
       components: {
           default: UserSettings,
           test: TestComponent
       }
       children: [{
           path: 'emails',
           component: UserEmailsSubscriptions
           }, {
           path: 'profile',
           components: {
               default: UserProfile,
               helper: UserProfilePreview
           }
       }]
   }]
})

但 TestComponent 不可见。为什么？

Answer 1

当您这样指定路线时，

{ 
  path: '/settings',
  // You could also have named views at tho top
  components: {
    default: UserSettings,
    test: TestComponent
  }
}

UserSettings 和 TestComponent 被认为是同级组件，因此在渲染时，它会在您在顶部指定的默认 router-view 旁边寻找命名的 router-view -most div 即 #app.

However, you put <router-view name="test" /> inside UserSettings template so it didn't find the router-view to render TestComponent to.

要解决此问题，请将 test 路由器视图从 UserSettings 移动到 #app。

<div id="app">
  <h1>Nested Named Views</h1>
  <router-view></router-view>
  <router-view name="test" class="us__content us__content--helper"/>
</div>

或者，如果您想将它保留在 UserSettings 中，请通过将 test: TestComponent 移动到您的任一子路由中来更改您声明它的方式。

参见 working example。

vue-router：嵌套命名视图问题。附加组件不可见

vue-router: nested named views problem. Additional component is not visible

javascript

vue.js

vue-router