React+antd はバックグラウンド管理システムを作成します

import('/components/chart').then(mud => {
  dosomething(mod)
});

class Bundle extends Component {
 constructor(props) {
   super(props);
   this.state = {
     mod: null
   };
 }
 unmount = false
 componentDidMount = () => {
  // 加载组件时，打开全局loading
  this.props.dispatch(loading(true))
  this.load(this.props)
 }
 componentWillUnmount = () => {
  this.unmount = true
 }
 
 componentWillReceiveProps(nextProps) {
   if (nextProps.load !== this.props.load) {
     this.load(nextProps)
   }
 }
 load(props) {
   if (this.state.mod) {
     return true
   }
   //注意这里，使用Promise对象; mod.default导出默认
   props.load().then((mod) => {
     if (this.unmount) {
       // 离开组件时，不异步执行setState
       this.props.dispatch(loading(false))
       return false
     }
     this.setState({
       mod: mod.default ? mod.default : mod
     }, _ => {
      // 组件加载完毕，关闭loading
      this.props.dispatch(loading(false))
     });
   });
 }
 render() {
   return this.state.mod ? this.props.children(this.state.mod) : null;
 }
}

<Bundle load={() => import('路径')}>
  {Comp => {
   return Comp ? <Comp /> : <p>加载中...</p>
  }}
 </Bundle>

const routers = [
 {
  menuName: '主页',
  menuIco: 'home',
  component: 'home/home.js', // 主页
  path: '/admin/home' // 主页
 },
 {
  menuName: '用户',
  menuIco: 'user',
  children: [
   {
    menuName: '用户列表',
    component: 'user/list.js', // 主页
    path: '/admin/user/list' // 主页
   }
  ]
 },
 {
  menuName: '多级菜单',
  menuIco: 'setting',
  children: [
   {
    menuName: '多级菜单2',
    children: [
     {
      menuName: '菜单',
      component: 'user/list.js', // 主页
      path: '/admin/user/list3' // 主页
     }
    ]
   }
  ]
 },
 {
  menuName: '关于我',
  menuIco: 'smile-o',
  component: 'about/about.js', // 主页
  path: '/admin/about' // 主页
 }
]

<Admin>
  <Content { ...this.props } breadcrumb={this.state.breadcrumb}>
    {this.props.children}
  </Content>
</Admin>
// Content组件内部
render() {
  return (
    <p> 
      {this.props.children}
    </p>
  )
}
// 本demo实现,详见src/routers/router.js
<Route
 path="/admin"
 render={item => (
  <Admin {...item} { ...this.props }>
   {initRouters.map(el => this.deepItem(el, { ...this.props, ...item}))}
  </Admin>
 )}
/>

import otherReducers from './otherReducers'
const App = combineReducers({
  rootReducers,
  ...otherReducers // 其他需要增加的reducers
})

const newWithRouter = withRouter(props => {
  // ....
})

return <Redirect to="/login" />

return <Redirect to={其他} />

// 修改webpack.config.dev.js 和 webpack.config-prod.js 配置文件
{
  test: /\.(css|less)$/,
  // 匹配src的都自动加载css-module
  include: [/src/],
  exclude: [/theme/],
  use: [
    require.resolve('style-loader'), {
      loader: require.resolve('css-loader'),
      options: {
        importLoaders: 1,
        modules: true, // 新增对css modules的支持
        localIdentName: '[path]___[name]__[local]___[hash:base64:5]'
      }
    }, {
      loader: require.resolve('postcss-loader'),
      options: {
        // Necessary for external CSS imports to work
        // https://github.com/facebookincubator/create-react-app/issues/2677
        ident: 'postcss',
        plugins: () => [
          require('postcss-flexbugs-fixes'),
          autoprefixer({
            browsers: [
              '>1%', 'last 4 versions', 'Firefox ESR', 'not ie < 9&#39;, // React doesn&#39;t support IE8 anyway
            ],
            flexbox: &#39;no-2009&#39;
          })
        ]
      }
    }, {
      loader: require.resolve(&#39;less-loader&#39;) // compiles Less to CSS
    }
  ]
}, {
  // 不匹配node_modules,theme的都不能自动加载css-module
  test: /\.(css|less)$/,
  include: [/node_modules/,/theme/],
  use: [
    {
      loader: "style-loader"
    }, {
      loader: "css-loader",
      options: {
        importLoaders: 1
      }
    }, {
      loader: require.resolve(&#39;less-loader&#39;) // compiles Less to CSS
    }
  ]
},

import './assets/theme/App.less'

// 安装react-hot-loader 
npm install --save-dev react-hot-loader

{
  test: /\.(js|jsx|mjs)$/,
  include: paths.appSrc,
  loader: require.resolve('babel-loader'),
  options: {
    // This is a feature of `babel-loader` for webpack (not Babel itself). It
    // enables caching results in ./node_modules/.cache/babel-loader/ directory for
    // faster rebuilds.
    cacheDirectory: true,
    plugins: [
      'react-hot-loader/babel'
    ]
  }
},

import { AppContainer } from 'react-hot-loader'
const render = Component => {
  ReactDOM.render(
    <AppContainer>
      <Component></Component>
    </AppContainer>,
    document.getElementById('root')
  )
}
render(App)
if(module.hot) {
  module.hot.accept('./App',() => {
    render(App);
  });
}