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>
4. 运行指令
npx webpack
此时 dist 目录就会输出一个 index.html 文件