fix(projects): 修复页面缓存

src/router/cache.ts

@@ -0,0 +1,38 @@
+import type { RouteRecordRaw } from 'vue-router';
+import { routes } from './routes';
+
+function getCacheRoutes() {
+  const cacheNames: string[] = [];
+  routes.forEach(route => {
+    const isCache = isKeepAlive(route);
+    cacheNames.push(...getCacheName(route, isCache));
+  });
+  return cacheNames;
+}
+
+function getCacheName(route: RouteRecordRaw, isCache: boolean) {
+  const cacheNames: string[] = [];
+  const hasChild = hasChildren(route);
+  if (isCache && !hasChild) {
+    const name = route.name as string;
+    cacheNames.push(name);
+  }
+  if (hasChild) {
+    const children = route.children as RouteRecordRaw[];
+    children.forEach(item => {
+      const isChildCache = isCache || isKeepAlive(item);
+      cacheNames.push(...getCacheName(item, isChildCache));
+    });
+  }
+  return cacheNames;
+}
+
+function isKeepAlive(route: RouteRecordRaw) {
+  return Boolean(route?.meta?.keepAlive);
+}
+function hasChildren(route: RouteRecordRaw) {
+  return Boolean(route.children && route.children.length);
+}
+
+/** 被缓存的路由 */
+export const cacheRoutes = getCacheRoutes();