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!217 update: 优化菜单页面渲染方式避免长时间卡住

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Merge pull request !217 from Lau/dev
This commit is contained in:
疯狂的狮子Li
2025-06-23 08:55:19 +00:00
committed by Gitee
parent 48b5d595df 2f35342782
commit d59738b473
1 changed files with 32 additions and 4 deletions
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36
src/views/system/menu/index.vue
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@ -45,6 +45,8 @@
border border
:tree-props="{ children: 'children', hasChildren: 'hasChildren' }" :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
:default-expand-all="isExpandAll" :default-expand-all="isExpandAll"
lazy
:load="getChildrenList"
> >
<el-table-column prop="menuName" label="菜单名称" :show-overflow-tooltip="true" width="160"></el-table-column> <el-table-column prop="menuName" label="菜单名称" :show-overflow-tooltip="true" width="160"></el-table-column>
<el-table-column prop="icon" label="图标" align="center" width="100"> <el-table-column prop="icon" label="图标" align="center" width="100">
@ -299,6 +301,7 @@ const { proxy } = getCurrentInstance() as ComponentInternalInstance;
const { sys_show_hide, sys_normal_disable } = toRefs<any>(proxy?.useDict('sys_show_hide', 'sys_normal_disable')); const { sys_show_hide, sys_normal_disable } = toRefs<any>(proxy?.useDict('sys_show_hide', 'sys_normal_disable'));
const menuList = ref<MenuVO[]>([]); const menuList = ref<MenuVO[]>([]);
const menuChildrenListMap = ref({});
const loading = ref(true); const loading = ref(true);
const showSearch = ref(true); const showSearch = ref(true);
const menuOptions = ref<MenuOptionsType[]>([]); const menuOptions = ref<MenuOptionsType[]>([]);
@ -340,14 +343,32 @@ const data = reactive<PageData<MenuForm, MenuQuery>>({
const menuTableRef = ref<ElTableInstance>(); const menuTableRef = ref<ElTableInstance>();
const { queryParams, form, rules } = toRefs<PageData<MenuForm, MenuQuery>>(data); const { queryParams, form, rules } = toRefs<PageData<MenuForm, MenuQuery>>(data);
/** 获取子菜单列表 */
const getChildrenList = async (row: any, treeNode: unknown, resolve: (data: any[]) => void) => {
resolve(menuChildrenListMap.value[row.menuId] || []);
};
/** 查询菜单列表 */ /** 查询菜单列表 */
const getList = async () => { const getList = async () => {
loading.value = true; loading.value = true;
const res = await listMenu(queryParams.value); const res = await listMenu(queryParams.value);
const data = proxy?.handleTree<MenuVO>(res.data, 'menuId');
if (data) { const tempMap = {};
menuList.value = data; // 存储 父菜单:子菜单列表
for (const menu of res.data) {
const parentId = menu.parentId;
if (!tempMap[parentId]) {
tempMap[parentId] = [];
}
tempMap[parentId].push(menu);
} }
// 设置有没有子菜单
for (const menu of res.data) {
menu['hasChildren'] = tempMap[menu.menuId]?.length > 0;
}
menuChildrenListMap.value = tempMap;
menuList.value = tempMap[0] || [];
loading.value = false; loading.value = false;
}; };
/** 查询菜单下拉树结构 */ /** 查询菜单下拉树结构 */
@ -393,7 +414,14 @@ const handleToggleExpandAll = () => {
}; };
/** 展开/折叠所有 */ /** 展开/折叠所有 */
const toggleExpandAll = (data: MenuVO[], status: boolean) => { const toggleExpandAll = (data: MenuVO[], status: boolean) => {
data.forEach((item: MenuVO) => { data.forEach(async (item: MenuVO) => {
const menuChildrenList = menuChildrenListMap.value[item.menuId];
// 从menuChildrenListMap中获取子菜单列表
if (menuChildrenList && (!item.children || item.children.length === 0)) {
item.children = menuChildrenList || [];
// 等待子菜单列表加载完成
await nextTick();
}
menuTableRef.value?.toggleRowExpansion(item, status); menuTableRef.value?.toggleRowExpansion(item, status);
if (item.children && item.children.length > 0) toggleExpandAll(item.children, status); if (item.children && item.children.length > 0) toggleExpandAll(item.children, status);
}); });