beforeRouteLeave (to, from, next) {
if (to.name === 'pageA') { /* pageA是需要跳转的路由 */
// console.log('返回管理页面')
if (this.$vnode && this.$vnode.data.keepAlive) {
if (this.$vnode.parent && this.$vnode.parent.componentInstance && this.$vnode.parent.componentInstance.cache) {
if (this.$vnode.componentOptions) {
var key = this.$vnode.key == null
? this.$vnode.componentOptions.Ctor.cid + (this.$vnode.componentOptions.tag ? `::${this.$vnode.componentOptions.tag}` : '')
: this.$vnode.key
var cache = this.$vnode.parent.componentInstance.cache
var keys = this.$vnode.parent.componentInstance.keys
if (cache[key]) {
if (keys.length) {
var index = keys.indexOf(key)
if (index > -1) {
keys.splice(index, 1)
}
}
delete cache[key]
}
}
}
}
this.$destroy()
}
next()
},
