react webpack配置

接上期 webpack的基础配置
同样附上个人git仓库地址：https://gitee.com/zhaosir1/webpack-base-react-cli.git
详细注释请参考:webpack的基础配置 https://blog.csdn.net/qq_45142260/article/details/125345042
废话不多说，直接上代码

1. 目录结构
   

2. webpack.config.js
   其中 imagemin-gifsicle imagemin-jpegtran imagemin-optipng imagemin-svgo 这几个插件不太容易能够下载下来，可私聊我单独发，或者访问我主页，我上传的资源，其中有个关于webpack图片压缩的插件下载即可。下载地址：https://download.csdn.net/download/qq_45142260/85709385
   webpack.config.js文件是 把webpack.dev.js和webpack.prod.js合并之后的文件，这样会使文件比较整洁一点

const EslintWebpackPlugin = require('eslint-webpack-plugin')
const HtmlWebpackPlugin = require("html-webpack-plugin")
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const CssMinimizerWebpackPlugin = require('css-minimizer-webpack-plugin')
const TerserWebpackPlugin = require('terser-webpack-plugin')
const ImageMinimizerPlugin = require('image-minimizer-webpack-plugin')
const ReactRefreshWebpackPlugin = require('@pmmmwh/react-refresh-webpack-plugin');
const CopyPlugin = require("copy-webpack-plugin");
const path = require('path')
// 判断当前环境
const isProduction = process.env.NODE_ENV === 'production' 
function getStyleLoaders (pre) {
  return [
    //根据不同环境使用不同的loader--开发环境不需要css压缩和单独抽离
    isProduction ? MiniCssExtractPlugin.loader : 'style-loader',
    'css-loader',
    {
      // 处理css兼容性
      // 配合package.json 中browserslit来指定兼容性
      loader:'postcss-loader',
      options:{
        postcssOptions:{
          plugins:['postcss-preset-env'],
        }
      }
    },
    pre && {
      loader:pre,
      // 针对antd的高级配置使用
      options:pre === 'less-loader'?{
        // antd的主题色设置
        lessOptions: {
          modifyVars: { '@primary-color': '#f00' },
          javascriptEnabled: true,
        }
      }:{}
    }
  ].filter(Boolean)
} 
module.exports = {
  entry: './src/main.js',
  output: {
    // 环境判断，输出文件位置、文件名称、缓存文件名称等
    path: isProduction ? path.resolve(__dirname,'../dist') : undefined,
    filename: isProduction ? 'static/js/[name].[contenthash:10].chunk.js' : 'static/js/[name].js',
    chunkFilename: isProduction ? 'static/js/[name].[contenthash:10].chunk.js' : 'static/js/[name].chunk.js',
    assetModuleFilename: 'static/media/[hash:10][ext][query]',
    clean:true
  },
  module: {
    rules: [
      //css
      {
        test: /\.css$/,
        use:getStyleLoaders(),
      },
      {
        test: /\.less$/,
        use:getStyleLoaders('less-loader'),
      },
      {
        test: /\.s[ac]ss$/,
        use:getStyleLoaders('sass-loader'),
      },
      {
        test: /\.styl$/,
        use:getStyleLoaders('stylus-loader'),
      },
      //图片
      {
        test:/\.(jpe?g|png|svg|gif)/,
        type:"asset",
        parser:{
          dataUrlCondition:{
            maxSize:10 * 1024,
          },
        }
      },
      //其他资源
      {
        test:/\.(woff2?|ttf)/,
        type:'asset/resource'
      },
      //js
      {
        test:/\.jsx?$/,
        include:path.resolve(__dirname,'../src'),
        loader:'babel-loader',
        options:{
          cacheDirectory:true, //开启缓存
          cacheCompression:false, //不压缩缓存文件
          plugins:[
            // 生产环境不需要激活HMR功能
            !isProduction && 'react-refresh/babel' //激活js的HMR功能
          ].filter(Boolean)
        }
      }
    ]
  },
  // 处理html
  plugins:[
    // Eslint语法检查
    new EslintWebpackPlugin({
      context:path.resolve(__dirname,'../src'), //指定处理文件范围
      exclude:'node_modules', //排除node_modules文件夹
      cache:true, //开启缓存
      //配置缓存文件位置
      cacheLocation:path.resolve(__dirname,'../node_modules/.cache/.eslintcache'),
    }),
    // 处理html文件内容
    new HtmlWebpackPlugin({
      //配置处理 public 下的 index.html 文件
      template:path.resolve(__dirname,'../public/index.html')
    }),
    //开发环境不需要css压缩
    isProduction && new MiniCssExtractPlugin({
      filename:'static/css/[name],[contenthash:10].css',
      chunkFilename:'static/css/[name],[contenthash:10].chunk.css',
    }),
    //开发环境不需要public文件的copy
    isProduction && new CopyPlugin({
      patterns:[{from:path.resolve(__dirname,'../public'),to:path.resolve(__dirname,'../dist'),globOptions: {
        dot: true,
        gitignore: true,
        ignore: ["**/index.html*"],//忽略index.html文件
      },}]
    }),
    !isProduction && new ReactRefreshWebpackPlugin()

  ].filter(Boolean), //过滤掉为undefined的plugin
  mode:isProduction?'production':'development',
  devtool:isProduction ? 'source-map':'cheap-module-source-map',
  optimization:{
    splitChunks:{
      chunks:'all',
      // 由于node_modules文件打包之后会生成一个特别大的文件夹，
      // 因此需要手动配置分包
      cacheGroups:{
        // react react-dom react-router-dom 相关的 一起打包
        react:{
          test:/[\\/]node_modules[\\/]react(.*)?[\\/]/,
          name:'chunk-react',//文件名称
          priority:40
        },
        // antd单独打包
        antd:{
          test:/[\\/]node_modules[\\/]antd[\\/]/,
          name:'chunk-antd',//文件名称
          priority:30
        },
        // 剩下的node_module单独打包
        libs:{
          test:/[\\/]node_modules[\\/]/,
          name:'chunk-libs',
          priority:20
        }
      }
    },
    runtimeChunk:{
      name:entrypoint => `runtime~${entrypoint.name}.js`
    },
    //minimize 是否需要压缩
    //开发环境不需要压缩，因此直接配置minimize:isProduction即可
    //webpack会自动忽略 minimizer 的配置项
    minimize:isProduction,
    minimizer: [
      new CssMinimizerWebpackPlugin(),
      new TerserWebpackPlugin(),
      new ImageMinimizerPlugin({
        minimizer: {
          implementation: ImageMinimizerPlugin.imageminGenerate,
          options: {
            plugins: [
              ["gifsicle", { interlaced: true }],
              ["jpegtran", { progressive: true }],
              ["optipng", { optimizationLevel: 5 }],
              [
                "svgo",
                {
                  plugins: [
                    "preset-default",
                    "prefixIds",
                    {
                      name: "sortAttrs",
                      params: {
                        xmlnsOrder: "alphabetical",
                      },
                    },
                  ],
                },
              ],
            ],
          },
        },
      }),
    ]
  },
  // webpack解析模块加载选项
  resolve:{
    // 自动补全文件扩展名
    extensions:['.jsx','.js','.json']
  },
  devServer:{
    host:'localhost',
    port:3001,
    open:true,
    hot:true,
    historyApiFallback:true, //解决前端路由刷新404问题
  },
  performance:false,//关闭性能分析，提升打包速度
}

3. App.js

import React,{Suspense,lazy} from "react";
// import Home from "./pages/Home";
// import About from "./pages/About";
import {Link,Routes,Route} from 'react-router-dom'
import {Button} from 'antd'

const Home = lazy(() => import(/* webpackChunkName: 'home' */'./pages/Home'))
const About = lazy(() => import(/* webpackChunkName: 'about' */'./pages/About'))
function App(){
  return (
    <>
    <h1>App</h1>
    <Button type="primary">按钮</Button>
    <ul>
      <li>
        <Link to="/home">home</Link>
      </li>
      <li>
        <Link to="/about">about</Link>
      </li>
    </ul>
    <Suspense fallback={<div>Loading...</div>}>
      <Routes>
      <Route path="/home" element={<Home />}></Route>
      <Route path="/about" element={<About />}></Route>
    </Routes>
    </Suspense>
    
    </>
  )
  
}
export default App

4. main.js

import React from 'react'
import ReactDom from 'react-dom/client'
import App from './App'
import {BrowserRouter} from 'react-router-dom'
import 'antd/dist/antd.less'
const root = ReactDom.createRoot(document.getElementById('app'))
root.render(
	<BrowserRouter>
		<App/>
	</BrowserRouter>
)

5. .eslintrc.js

module.exports = {
  extends: ["react-app"], // 继承 react 官方规则
  parserOptions: {
    babelOptions: {
      presets: [
        // 解决页面报错问题
        ["babel-preset-react-app", false],
        "babel-preset-react-app/prod",
      ],
    },
  },
};

6. babel.config.js

module.exports = {
  presets:['react-app'],//使用react的预设
}

7. package.json

"browserslit": [
    "last 2 version",
    "> 1%",
    "not dead"
  ],
  "scripts": {
    "start": "npm run dev",
    "dev": "cross-env NODE_ENV=development webpack serve --config ./config/webpack.config.js",
    "build": "cross-env NODE_ENV=production webpack --config ./config/webpack.config.js"
  },

关于react的webpack配置，如君还有优化空间或问题，请在评论区讨论或私聊我，共同努力共同进步。
万分感谢