1.实现逻辑

entry: {
    index: "./src/index.js",
    list: "./src/list.js",
  },
  
  plugins: [
    new htmlWebpackPlugin({
      template: "./src/index.html",
      filename: "index.html",
      chunks: ["index"],
    }),
    new htmlWebpackPlugin({
      template: "./src/list.html",
      filename: "list.html",
      chunks: ["list"],
    }),
    new MiniCssExtractPlugin({
      filename: "css/[name].css",
    })
  ]

把上面静态的entry 和 plugins里的htmlWebpackPlugin对象数组，调整为动态读取。

1. glob遍历文件夹关系，得出文件夹列表对象entryFiles
2. 遍历entryFiles 得出entry和 htmlwebpackplugins数组
3. 插入module.exports = {}的对象里面

2.安装相关依赖

package.json

 "scripts": {
    "mpa" : "webpack --config ./webpack.mpa.config.js"
  },
  "devDependencies": {
    "autoprefixer": "^10.0.1",
    "axios": "^0.21.0",
    "clean-webpack-plugin": "^3.0.0",
    "css-loader": "^5.0.0",
    "cssnano": "^4.1.10",
    "express": "^4.17.1",
    "file-loader": "^6.2.0",
    "glob": "^7.1.6",
    "html-webpack-plugin": "^4.5.0",
    "less": "^3.12.2",
    "less-loader": "^7.0.2",
    "mini-css-extract-plugin": "^1.2.1",
    "postcss": "^8.1.4",
    "postcss-loader": "^4.0.4",
    "style-loader": "^2.0.0",
    "url-loader": "^4.1.1",
    "webpack": "^4.43.0",
    "webpack-cli": "^3.3.12",
    "webpack-dev-server": "^3.11.0"
  },

3.代码实现

webpack.mpa.config.js

const path = require("path");
const htmlWebpackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");
const glob = require("glob");

const setMpa = () => {
  const entry = {};
  const htmlwebpackplugins = [];

  const entryFiles = glob.sync(path.join(__dirname, "./src/*/index.js"));

  entryFiles.map((item, index) => {
    const entryFile = entryFiles[index];
    const match = entryFile.match(/src\/(.*)\/index\.js$/);
    const pageName = match[1];
    entry[pageName] = entryFile;
    htmlwebpackplugins.push(
      new htmlWebpackPlugin({
        template: `./src/${pageName}/index.html`,
        filename: `${pageName}.html`,
        chunks: [pageName],
      })
    );
  });

  return {
    entry,
    htmlwebpackplugins,
  };
};
const { entry, htmlwebpackplugins } = setMpa();

module.exports = {
  entry,
  output: {
    path: path.resolve(__dirname, "./mpa"),
    filename: "[name].js",
  },
  mode: "development",
  module: {
    rules: [
      {
        test: /\.css$/,
        use: ["style-loader", "css-loader"],
      },
      {
        test: /\.less$/,
        use: [
          MiniCssExtractPlugin.loader,
          "css-loader",
          "postcss-loader",
          "less-loader",
        ],
      },
      {
        test: /\.(png|jpe?g|gif)$/,
        use: {
          loader: "url-loader",
          options: {
            name: "[name].[ext]",
            outputPath: "images/",
            publicPath: "../images",
            limit: 1024 * 3, 
          },
        },
      },
      {
        test: /\.(eot|woff|woff2)$/,
        use: {
          loader: "file-loader",
          options: {
            name: "[name].[ext]",
            publicPath: "../",
          },
        },
      },
    ],
  },

  plugins: [
    ...htmlwebpackplugins,
    new MiniCssExtractPlugin({
      filename: "css/[name].css",
    }),
    new CleanWebpackPlugin(),
  ],
};