Question

我在vue-application中使用vue-router 虽然我设置了keep-alive，但每次刷新内容页面每次我都会调用挂钩和激活的挂钩在内容页面中原谅我的英语很差提前谢谢

//home.vue
    <div id="home">
        <topnav ref="childMethod"></topnav>
        <div class="mobile_header" ref="mobile_header"><img src="../assets/img/menu.png" @click="nav()"><p>earnest的小站</p></div>
        <keep-alive>
            <router-view v-if="$route.meta.keepAlive"></router-view>
        </keep-alive>
        <router-view v-if="!$route.meta.keepAlive"></router-view>
        <div id="iconfont1" @click="gotop1()" v-show="show" title="回到顶部"></div>
        <myfooter></myfooter>
    </div>


 //app.vue
<div id="app">
        <!-- 不管写没写跟路由都在APP。vue里面？一定要加上这一句 -->
        <loading v-show="isloading"></loading>
            <router-view></router-view>
</div>

// router index.js

const router=new Router({
    mode:'history',
    routes: [
    {
        path: '/',
        redirect:'/content',
        component: home,
        children:[
      //注意这里有逗号
      // 要是hash路由，这里无论点那个路由都是跳转到content
      {path:'/about', name:'about', component:about,meta:{keepAlive:true}},
      {path:'/archives',name:'archives',component:archives,meta:{keepAlive:true}},
      {path:'/content',name:'content',component:content,meta:{keepAlive:true}},
      {path:'/article:_id',name:'article',component:article,meta:{keepAlive:true}}//这里的name是命名路由里面的参数name
      ]
  }

Answer 1

我认为您需要在keep-alive元素中添加一个include =“ mycomponentname，mynextcomponetname，etc”属性。您还需要全局命名和注册这些组件。然后，您可以从路由中删除元数据，只需使路由按名称与组件匹配：

您的应用程序的根vue文件：

<template>
  <div id="app">
    <main role="main">
      <keep-alive include="somecomponent">
        <router-view class="view"></router-view>
      </keep-alive>
    </main>
  </div>
</template>

<script>    
  include SomeComponent from "../path/to/some-component"
  Vue.component("some-component", SomeComponent)
</script>

请在此处查看有关组件名称匹配的更多详细信息：

vue forum: keep-alive not working with vue-router

Child Routes, keep-alive and nested keep-alive destroy considerations

Answer 2

在视图路由器上使用唯一键

        <keep-alive>
            <router-view v-if="$route.meta.keepAlive" :key="$route.fullPath"></router-view>
        </keep-alive>

vue Keep-alive无法正常工作

2 个答案: