react项目中按需使用antd（非修改webpack配置）

React中使用Antd高级配置，按需引入css样式

@import '~antd/dist/antd.css'把组件成功运行起来了，但是在实际开发过程中还有很多问题，实际上加载了全部的 antd 组件的样式（对前端性能是个隐患）。

1、安装antd npm install antd --save

2、安装（react-app-rewired）一个对 create-react-app 进行自定义配置的社区解决方案
yarn add react-app-rewired / cnpm install react-app-rewired --save

3、修改 package.json

react-scripts 需改为react-app-rewired

"scripts": {
    "start": "react-app-rewired start",
    "build": "react-app-rewired build",
    "test": "react-app-rewired test --env=jsdom",
    "eject": "react-app-rewired eject"
 },

4、在项目根目录创建一个 config-overrides.js 用于修改默认配置

module.exports = function override(config, env) {
     // do stuff with the webpack config...
  return config;
};

5、安装babel-plugin-import babel-plugin-import是一个用于按需加载组件代码和样式的 babel 插件

yarn add babel-plugin-import

6、修改 config-overrides.js

const { injectBabelPlugin } = require('react-app-rewired');

module.exports = function override(config, env) {
 config = injectBabelPlugin(
       ['import', { libraryName: 'antd', libraryDirectory: 'es', style: 'css' }],
       config,
  );
 return config;
 };

7、然后移除前面在 src/App.css 里全量添加的 @import '~antd/dist/antd.css'; 直接引入组件使用就会有对应的css

    import { Button } from 'antd';
    <Button type="primary">Primary</Button>

8.报错The "injectBabelPlugin" helper has been deprecated as of v2.0. You can use customize-cra plugins in replacement - https://github.com/arackaf/cu...

转载至https://blog.csdn.net/zoepris...
1.首先确保你安装了以下几个包：
yarn add less less-loader
yarn add customize-cra
yarn add react-app-rewired@2.x

2.然后要在根目录下添加个config-overrides.js的文件，内容如下：

const {
    override,
    fixBabelImports,
    addLessLoader,
  } = require("customize-cra");
  
  
  module.exports = override(
    fixBabelImports("import", {
      libraryName: "antd", libraryDirectory: "es", style: true // change importing css to less
    }),
    addLessLoader({
      javascriptEnabled: true,
      modifyVars: { "@primary-color": "#1DA57A" }
    })
  );