vue2中keep-alive页面特定跳转清除缓存

1、首先在App.js里面，这里是根据route里面meta.keepAlive是否为true来判断是否需要缓存。

<div>
    <keep-alive>
        <router-view v-if="$route.meta.keepAlive"/>
    </keep-alive>
    <router-view v-if="!$route.meta.keepAlive"/>
</div>

2、在router.js路由里面meta加上keepAlive，默认可以为有缓存

{
   path: '/xxxx',
   name: 'xxxx',
   component: xxxx,
   meta: {
      keepAlive:true,
   }
}

3、使用路由守卫，判断跳转前的页面（特定页面）name值，修改是否需要缓存

    beforeRouteLeave(to,from,next){
        // console.log(to,from)
        if(to.name == 'XXX'){
            from.meta.keepAlive = false
            next()
        }else{
            from.meta.keepAlive = true
            next()
        }
    }