app.vue（或其它入口页）使用keep-alive的include动态设置缓存
注意：有嵌套的页面需要在嵌套内部的router-view上添加keep-alive
<template><router-view v-slot="{ Component}"><keep-alive :include="cacheList"><component :is="Component" /></keep-alive></router-view>
</template>
<script setup lang="ts">
import { cacheStore } from "@/stores";
const store = cacheStore();
// 在store中定义一个cacheList用在存放缓存页面
const cacheList = computed(() => {return store.cacheList;
});
</script>stores的index.ts：使用pinia调控缓存页面的数组
import { defineStore } from "pinia";
import { cacheState } from './types';
const cacheStore = defineStore("cache", {state: (): cacheState => ({cacheList:[] // keep-alive缓存列表}),actions: {pushCaches(item:string) {let set = new Set(this.cacheList);set.add(item);this.cacheList = Array.from(set);},popCaches(item:string) {let set = new Set(this.cacheList);if (set.has(item)) {set.delete(item);}this.cacheList = Array.from(set);},},
});
export default cacheStore;list.vue（列表页）
注意：vue3的setup模式使用defineOptions为页面路由命名
<script lang="ts" setup>
import { ref } from "vue";
import { onBeforeRouteLeave} from "vue-router";
import { cacheStore } from "@/stores";
const store = cacheStore();
//路由命名（非组件名）
defineOptions({ name: "list" });
//离开页面守卫
onBeforeRouteLeave((to, _from, next) => {// 若跳转的是详情页缓存本页面，否则清除本页缓存if (to.name === "detail") {store.pushCaches("list");} else {store.popCaches("list");}next();
});
</script>detail.vue（详情页）
<script lang="ts" setup>
//路由命名
defineOptions({ name: "detail" });
</script>
