前端基础（三十七）：属性结构数据进行关键字筛选

妖狐艹你老母 2024-05-07 17:16 50阅读 0赞

### 效果 ###

![在这里插入图片描述][8f6c78dd1a154aa0acfc992665ded55b.gif_pic_center]

### 核心源码 ###

type MenuItem = {
        
        label: string;
        key: string | number;
        icon?: React.ReactNode;
        children?: MenuItem[];
        type?: 'group';
    }
    
    function filterTreeData(tree: MenuItem[], keyword: string): MenuItem[] {
        
        return tree.filter((node: MenuItem) => {
        
            if (node.label.includes(keyword)) {
        
                return true;
            }
            if (Array.isArray(node.children)) {
        
                node.children = filterTreeData(node.children, keyword);
                return !!node.children?.length;
            }
            return false;
        });
    }

### 源码 ###

import React, {
        useState} from 'react';
    import {
        
        BarChartOutlined, CompassOutlined, DatabaseOutlined, DeploymentUnitOutlined, DesktopOutlined, SettingOutlined,
        FundProjectionScreenOutlined, FundViewOutlined, HomeOutlined, MenuFoldOutlined, MenuUnfoldOutlined, MessageOutlined,
        TrophyOutlined, VerifiedOutlined,
    } from '@ant-design/icons';
    import {
        Flex, Button, Menu as AntdMenu} from 'antd';
    import Search from "antd/es/input/Search";
    import {
        SearchProps} from "antd/lib/input";
    
    type MenuItem = {
        
        label: string;
        key: string | number;
        icon?: React.ReactNode;
        children?: MenuItem[];
        type?: 'group';
    }
    
    function getItem(label: React.ReactNode, key: React.Key, icon?: React.ReactNode, children?: MenuItem[], type?: 'group',): MenuItem {
        
        return {
        key, icon, children, label, type,} as MenuItem;
    }
    
    function filterTreeData(tree: MenuItem[], keyword: string): MenuItem[] {
        
        return tree.filter((node: MenuItem) => {
        
            if (node.label.includes(keyword)) {
        
                return true;
            }
            if (Array.isArray(node.children)) {
        
                node.children = filterTreeData(node.children, keyword);
                return !!node.children?.length;
            }
            return false;
        });
    }
    
    const Menu: React.FC = () => {
        
    
        const menuItems: MenuItem[] = [
            getItem('首页', '1', <HomeOutlined/>),
            getItem('平台管理', '2', <DesktopOutlined/>, [
                getItem('学生管理', '2-1'),
                getItem('教师管理', '2-2'),
                getItem('班级管理', '2-3'),
                getItem('任务管理', '2-4', null, [
                    getItem('课程管理', '2-4-1'),
                    getItem('发布任务', '2-4-2'),
                ]),
                getItem('作业管理', '2-5'),
                getItem('答卷管理', '2-6', null, [
                    getItem('批卷列表', '2-6-1'),
                    getItem('批卷结果', '2-6-2'),
                ]),
            ]),
            getItem('平台资源', '3', <DatabaseOutlined/>),
            getItem('教学实训', '4', <MessageOutlined/>),
            getItem('培训认证', '5', <VerifiedOutlined/>),
            getItem('技能竞赛', '6', <TrophyOutlined/>),
            getItem('科研实验', '7', <DeploymentUnitOutlined/>),
            getItem('数据平台', '8', <BarChartOutlined/>),
            getItem('算法平台', '9', <FundProjectionScreenOutlined/>),
            getItem('系統管理', '10', <CompassOutlined/>),
            getItem('系统监控', '11', <FundViewOutlined/>),
            getItem('系統工具', '12', <SettingOutlined/>),
        ];
    
        const [items, setItems] = useState<MenuItem[]>(menuItems);
    
        const [collapsed, setCollapsed] = useState(false);
    
        const toggleCollapsed = () => {
        
            setCollapsed(!collapsed);
        };
    
        const onSearch: SearchProps['onSearch'] = (value, _e, _info) => {
        
            setItems(filterTreeData(menuItems, value));
        };
    
        return (
            <>
                <div className="menu-tool">
                    <Flex gap={
        10}>
                        {
        collapsed ? '' : (<Search placeholder="在此输入关键词..." onSearch={
        onSearch}/>)}
                        <Button block={
        collapsed} type="primary" onClick={
        toggleCollapsed} icon={
        collapsed ? <MenuUnfoldOutlined/> : <MenuFoldOutlined/>}/>
                    </Flex>
                </div>
                <AntdMenu defaultSelectedKeys={
        ['1']} mode="inline" inlineCollapsed={
        collapsed} items={
        items}/>
            </>
        );
    };
    
    export default Menu;

[8f6c78dd1a154aa0acfc992665ded55b.gif_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/05/07/e3430c80201549368f6daff892658ead.gif