React + antd （Menu组件渲染多级菜单）

菜单数据结构

[
  {
    "title": "首页",
    "icon": null,
    "path": "/home",
    "children": []
  },
  {
    "title": "Option",
    "icon": null,
    "path": "/home",
    "children": [
      {
        "title": "Option 1",
        "icon": null,
        "path": "/home",
        "children": []
      },
      {
        "title": "Option 2",
        "icon": null,
        "path": "/home",
        "children": [
          {
            "title": "Option 3",
            "icon": null,
            "path": "/home",
            "children": []
          }
        ]
      }
    ]
  }
]

实现代码

import React, { useState, useEffect } from "react";
import { Menu } from 'antd';
import { MenuWrapper } from './styled'
import logoIcon from '@/assets/img/logo.svg'
import { getMenuList } from '@/api/menu'

const { SubMenu } = Menu;

interface IMenu {
  title: string;
  children: Array<IMenu>;
  path: string;
  icon?: string;
}

const MenuComps: React.FC = () => {
  const [menuData, setMenuData] = useState<Array<IMenu>>([]) 
  const handleClick = (e: any) => {
    console.log('click ', e);
  }
  // 获取菜单数据
  const getMenuData = async () => {
    const res = await getMenuList()
    setMenuData(res.data)
  }
  useEffect(() => {
    getMenuData()
  }, [])

  // 渲染不含children的目录
  const renderNoChildMenu = (item: IMenu) => {
    return <Menu.Item key={item.title}>{ item.title }</Menu.Item>
  }
  // 渲染含有children的目录
  const renderChildMenu = (item: IMenu) => {
    return <SubMenu key={item.title} title={item.title}>
      { 
        item.children.map((child) => {
          return renderMenu(child)
        })
      }
    </SubMenu>
  }
  // 渲染菜单
  const renderMenu = (item: IMenu) => {
    return item.children.length ? renderChildMenu(item) : renderNoChildMenu(item)
  }
  return (
    <MenuWrapper className="menu-wrapper">
      <div className="menu-header">
        <img src={logoIcon} alt="" />
        <span>React Demo</span>
      </div>
      <Menu
        onClick={handleClick}
        style={{ width: '100%', marginTop: '2px' }}
        defaultSelectedKeys={['1']}
        defaultOpenKeys={[]}
        mode="inline"
      >
        {/* <SubMenu key="sub1" title="Navigation One">
          <Menu.ItemGroup key="g1" title="Item 1">
            <Menu.Item key="1">Option 1</Menu.Item>
            <Menu.Item key="2">Option 2</Menu.Item>
          </Menu.ItemGroup>
          <Menu.ItemGroup key="g2" title="Item 2">
            <Menu.Item key="3">Option 3</Menu.Item>
            <Menu.Item key="4">Option 4</Menu.Item>
          </Menu.ItemGroup>
        </SubMenu>
        <Menu.Item key="12">Option 12</Menu.Item> */}
        { menuData.map((item: any) => renderMenu(item)) }
      </Menu>
    </MenuWrapper>
  )
}

export default MenuComps

展示效果