Webpack5入门到原理12：处理 Html 资源

1. 下载包

npm i html-webpack-plugin -D

2. 配置

webpack.config.js

const path = require("path");
const ESLintWebpackPlugin = require("eslint-webpack-plugin");
const HtmlWebpackPlugin = require("html-webpack-plugin");module.exports = {entry: "./src/main.js",output: {path: path.resolve(__dirname, "dist"),filename: "static/js/main.js", // 将 js 文件输出到 static/js 目录中clean: true, // 自动将上次打包目录资源清空},module: {rules: [{// 用来匹配 .css 结尾的文件test: /\.css$/,// use 数组里面 Loader 执行顺序是从右到左use: ["style-loader", "css-loader"],},{test: /\.less$/,use: ["style-loader", "css-loader", "less-loader"],},{test: /\.s[ac]ss$/,use: ["style-loader", "css-loader", "sass-loader"],},{test: /\.styl$/,use: ["style-loader", "css-loader", "stylus-loader"],},{test: /\.(png|jpe?g|gif|webp)$/,type: "asset",parser: {dataUrlCondition: {maxSize: 10 * 1024, // 小于10kb的图片会被base64处理},},generator: {// 将图片文件输出到 static/imgs 目录中// 将图片文件命名 [hash:8][ext][query]// [hash:8]: hash值取8位// [ext]: 使用之前的文件扩展名// [query]: 添加之前的query参数filename: "static/imgs/[hash:8][ext][query]",},},{test: /\.(ttf|woff2?)$/,type: "asset/resource",generator: {filename: "static/media/[hash:8][ext][query]",},},{test: /\.js$/,exclude: /node_modules/, // 排除node_modules代码不编译loader: "babel-loader",},],},plugins: [new ESLintWebpackPlugin({// 指定检查文件的根目录context: path.resolve(__dirname, "src"),}),new HtmlWebpackPlugin({// 以 public/index.html 为模板创建文件// 新的html文件有两个特点：1. 内容和源文件一致 2. 自动引入打包生成的js等资源template: path.resolve(__dirname, "public/index.html"),}),],mode: "development",
};

3. 修改 index.html

去掉引入的 js 文件，因为 HtmlWebpackPlugin 会自动引入

<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8" /><meta http-equiv="X-UA-Compatible" content="IE=edge" /><meta name="viewport" content="width=device-width, initial-scale=1.0" /><title>webpack5</title></head><body><h1>Hello Webpack5</h1><div class="box1"></div><div class="box2"></div><div class="box3"></div><div class="box4"></div><div class="box5"></div><i class="iconfont icon-arrow-down"></i><i class="iconfont icon-ashbin"></i><i class="iconfont icon-browse"></i></body>
</html>