关于react+antd样式不生效问题的解决方式关于react+antd样式不生效问题的

1、添加antd组件样式不生效
2、运行yarn eject时暴露配置文件报错
3、less-loader版本过高，删除旧版本，下载低版本即可
4、项目中引入icon代码报错
补充：React中antd按需加载样式不生效解决办法
总结

1、添加antd组件样式不生效

在入口文件中引入import 'antd/dist/antd.css'样式生效，但是生成警告WARNING in ./node_modules/antd/dist/antd.cssFailed to parse source map: 'webpack://antd/./components/time-picker/style/index.less' URL is not supported 这样就需要在webpack中配置，react项目默认的配置文件是不显示的，需要运行指令“yarn eject”暴露配置文件运行时又遇到问题2 解决完问题2后解决1的方法是在webpack.config.dev.js和webpack.config.prod.js文件添加相关配置,然后引入antd.less暴露出webpack配置后，在webpack.config.js 中更改配置如下// style files regexesconst cssRegex = /\.(css|less)$/; //此行为更改行！！！！！！！！！const cssModuleRegex = /\.module\.css$/; const sassRegex = /\.(scss|sass)$/; const sassModuleRegex = /\.module\.(scss|sass)$/; const hasJsxRuntime = (() => {if (process.env.DISABLE_NEW_JSX_TRANSFORM === 'true') {return false; } try {require.resolve('react/jsx-runtime'); return true; } catch (e) {return false; }})(); // This is the production and development configuration.// It is focused on developer experience, fast rebuilds, and a minimal bundle.module.exports = function (webpackEnv) {const isEnvDevelopment = webpackEnv === 'development'; const isEnvProduction = webpackEnv === 'production'; // Variable used for enabling profiling in Production// passed into alias object. Uses a flag if passed into the build commandconst isEnvProductionProfile =isEnvProduction && process.argv.includes('--profile'); // We will provide `paths.publicUrlOrPath` to our app// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.// Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.// Get environment variables to inject into our app.const env = getClientEnvironment(paths.publicUrlOrPath.slice(0, -1)); const shouldUseReactRefresh = env.raw.FAST_REFRESH; // common function to get style loadersconst getStyleLoaders = (cssOptions, preProcessor) => {const loaders = [isEnvDevelopment && require.resolve('style-loader'),isEnvProduction && {loader: MiniCssExtractPlugin.loader,// css is located in `static/css`, use '../../' to locate index.html folder// in production `paths.publicUrlOrPath` can be a relative pathoptions: paths.publicUrlOrPath.startsWith('.')? { publicPath: '../../' }: {},},{loader: require.resolve('css-loader'),options: cssOptions,},//此{}为添加行！！！！！！！！！！！！！！！！！！！{loader:'less-loader',options:{javascriptEnabled: true}},

运行代码，后又遇到报错看问题3

报错：Less Loader has been initialized using an options object that does not match the API schema

2、运行yarn eject时暴露配置文件报错

This git repository has untracked files or uncommitted changes:.DS_Store

git add . git commit -am "Save before ejecting" 然后再运行就可以了

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这样的webpack文件中就有了

3、less-loader版本过高，删除旧版本，下载低版本即可

yarn remove less-loader yarn add less-loader@4.0.1

再运行，代码成功运行

4、项目中引入icon代码报错

export 'Icon' (imported as 'Icon') was not found in 'antd'

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Ant Design 从 v3 升级到 v4 导致
图标升级（点击可查看文档），旧版 Icon 使用方式将被废弃，你将仍然可以通过兼容包继续使用：

import { Icon } from '@ant-design/compatible'; 运行时如果没有安装包，运行指令 yarn add@ant-design/compatible 再重新运行代码就可以了

补充：React中antd按需加载样式不生效解决办法按照antd官网文档，执行按需加载操作后，样式不生效，很可能是因为在webpack.config.js文件中设置了css模块化；
解决办法：
在终端中执行

npm run eject

弹出config文件夹后，找到webpack.config.js文件

{test: cssRegex,exclude: cssModuleRegex,use: getStyleLoaders({importLoaders: 1,//在这行后面添加 modules:falsemodules:false,sourceMap: isEnvProduction? shouldUseSourceMap: isEnvDevelopment,}),

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