mart-admin/src/layout/navMenu/vertical.vue

<template>
	<el-menu
		router
		:default-active="state.defaultActive"
		background-color="transparent"
		:collapse="state.isCollapse"
		:unique-opened="getThemeConfig.isUniqueOpened"
		:collapse-transition="false"
		:default-openeds="defaultOpeneds"
	>
		<!-- <template v-for="val in menuLists">
			<el-sub-menu :index="val.path" v-if="val.children && val.children.length > 0" :key="val.path">
				<template #title>
					<SvgIcon :name="val.meta.icon" />
					<span>{{ $t(val.meta.title) }}</span>
				</template>
				<SubItem :chil="val.children" />
			</el-sub-menu>
			<template v-else>
				<el-menu-item :index="val.path" :key="val.path">
					<SvgIcon :name="val.meta.icon" />
					<template #title v-if="!val.meta.isLink || (val.meta.isLink && val.meta.isIframe)">
						<span>{{ $t(val.meta.title) }}</span>
					</template>
					<template #title v-else>
						<a class="w100" @click.prevent="onALinkClick(val)">{{ $t(val.meta.title) }}</a>
					</template>
				</el-menu-item>
			</template>
		</template> -->
		
			<el-sub-menu :index="index.toString()" v-for="(item,index) in menuLists" :key="index" >
				<template #title>
					<span>{{ item.modulename }}</span>
				</template>
				<el-menu-item-group>
					<font-awesome-icon :icon="['fas',item.actions[0].icon]" size="lg" class="edtIcon" />
					<el-menu-item :index="item1.link" v-for="(item1, index1) in item.actions" :key="index1">
					<SvgIcon :name="item1.icon" />
						{{  item1.actionname }}
					</el-menu-item>
				</el-menu-item-group>
			</el-sub-menu>
		
	</el-menu>
</template>

<script setup lang="ts" name="navMenuVertical">
import { defineAsyncComponent, reactive, computed, onMounted, watch,ref ,onBeforeMount} from 'vue';
import { useRoute, onBeforeRouteUpdate, RouteRecordRaw } from 'vue-router';
import { storeToRefs } from 'pinia';
import { useThemeConfig } from '/@/stores/themeConfig';
import other from '/@/utils/other';
import {useMenuApi} from '/@/api/menu'

// 引入组件
const SubItem = defineAsyncComponent(() => import('/@/layout/navMenu/subItem.vue'));

// 定义父组件传过来的值
const props = defineProps({
	// 菜单列表
	menuList: {
		type: Array<RouteRecordRaw>,
		default: () => [],
	},
});

// 定义变量内容
const storesThemeConfig = useThemeConfig();
const { themeConfig } = storeToRefs(storesThemeConfig);
const route = useRoute();
const state = reactive({
	// 修复：https://gitee.com/lyt-top/vue-next-admin/issues/I3YX6G
	defaultActive: route.meta.isDynamic ? route.meta.isDynamicPath : route.path,
	isCollapse: false,
});

// 获取父级菜单数据
const menuLists = computed(() => {
	return props.menuList || [];
});
// 获取布局配置信息
const getThemeConfig = computed(() => {
	return themeConfig.value;
});
// 默认全展开的实现
// const defaultOpeneds = computed(() => {
//     if (menuLists.value.length === 0) {
//         console.log(111111111111);
// 				return []; // 没有菜单时返回空数组
//     } 
// 		console.log(22222222222);
		
//     return menuLists.value.map((_, index) => index.toString());
// });
const defaultOpeneds = ref<string[]>([]);


// 菜单高亮（详情时，父级高亮）
const setParentHighlight = (currentRoute: RouteToFrom) => {
	const { path, meta } = currentRoute;
	const pathSplit = meta?.isDynamic ? meta.isDynamicPath!.split('/') : path!.split('/');
	if (pathSplit.length >= 4 && meta?.isHide) return pathSplit.splice(0, 3).join('/');
	else return path;
};
// 打开外部链接
const onALinkClick = (val: RouteItem) => {
	other.handleOpenLink(val);
};

// 页面加载时
onMounted(() => {
	state.defaultActive = setParentHighlight(route);
	  // 每次加载页面，初始化默认展开项
	// 	const storedOpeneds = localStorage.getItem('defaultOpeneds');
  // if (storedOpeneds) {
  //   console.log('Loaded from localStorage:', JSON.parse(storedOpeneds));
  // } else {
  //   // 如果没有存储记录，设置为全部展开
  //   localStorage.setItem('defaultOpeneds', JSON.stringify(defaultOpeneds.value));
  // }
});
// 路由更新时
onBeforeRouteUpdate((to) => {
	// 修复：https://gitee.com/lyt-top/vue-next-admin/issues/I3YX6G
	state.defaultActive = setParentHighlight(to);
	const clientWidth = document.body.clientWidth;
	if (clientWidth < 1000) themeConfig.value.isCollapse = false;
});
// 设置菜单的收起/展开
watch(
	() => themeConfig.value.isCollapse,
	(isCollapse) => {
		document.body.clientWidth <= 1000 ? (state.isCollapse = false) : (state.isCollapse = isCollapse);
	},
	{
		immediate: true,
	}
);
// // 监听默认展开状态，并存储到 localStorage
// // 保存状态到 localStorage，每次更改时更新存储
// watch(defaultOpeneds, (newVal) => {
//     localStorage.setItem('defaultOpeneds', JSON.stringify(newVal));
// });
// 监控 props 的变化，确保 defaultOpeneds 始终正确
watch(
  () => props.menuList,
  (newMenuList) => {
    defaultOpeneds.value = newMenuList.map((_, index) => index.toString());
  },
  {
    immediate: true,
    deep: true,
  }
);

</script>
<style lang="scss" scoped>

::v-deep .el-menu-item-group__title{
	padding :0px 0px 0px ;
}

</style>