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62 lines
1.7 KiB
Vue
62 lines
1.7 KiB
Vue
<template>
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<div id="app">
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<router-view></router-view>
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</div>
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</template>
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<script>
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import { mapActions } from "vuex";
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export default {
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name: "App",
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methods: {
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...mapActions("cache", ["addCache", "removeCache"]),
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// 收集缓存（通过监听）
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collectCaches() {
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// 收集当前路由相关的缓存
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this.$route.matched.forEach((routeMatch) => {
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const instance = routeMatch.components?.default;
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const componentName = instance?.name;
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console.log(componentName);
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if (process.env.NODE_ENV === "development") {
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this.checkRouteComponentName(componentName, instance?.__file);
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}
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// 配置了meta.keepAlive的路由组件添加到缓存
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if (routeMatch.meta.keepAlive) {
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if (!componentName) {
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console.warn(`${routeMatch.path} 路由的组件名称name为空`);
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return;
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}
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this.addCache(componentName);
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} else {
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this.removeCache(componentName);
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}
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});
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},
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// 检测路由组件名称是否重复（组件重名会缓存到不该缓存的组件，而且不容易排查问题，所以开发环境时检测重名）
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checkRouteComponentName(name, file) {
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if (!this.cmpNames) this.cmpNames = {};
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if (this.cmpNames[name]) {
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if (this.cmpNames[name] !== file) {
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console.warn(
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`${file} 与${this.cmpNames[name]} 组件名称重复： ${name}`
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);
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}
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} else {
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this.cmpNames[name] = file;
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}
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},
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},
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watch: {
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"$route.path": {
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immediate: true,
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handler() {
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this.collectCaches();
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},
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},
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},
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};
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</script>
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<style lang="less"></style>
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