关于react+antd样式不生效问题的解决方式

目录

• 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.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 [email protected]

 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

到此这篇关于react+antd样式不生效问题的解决方式的文章就介绍到这了,更多相关react+antd样式不生效解决内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！