关于react+antd样式不生效问题的解决方式
作者:Sunny_lxm
最近本人在使用Antd开发时遇到些问题,所以下面这篇文章主要给大家介绍了关于react+antd样式不生效问题的解决方式,文中通过图文以及实例代码介绍的非常详细,需要的朋友可以参考下
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.css Failed 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 regexes const 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 command const 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 loaders const 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 path options: 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
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'
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:false modules:false, sourceMap: isEnvProduction ? shouldUseSourceMap : isEnvDevelopment, }),
总结
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