125 lines
3.1 KiB
Markdown
125 lines
3.1 KiB
Markdown
# 处理 Html 资源
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## 1. 下载包
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```:no-line-numbers
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npm i html-webpack-plugin -D
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```
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## 2. 配置
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- webpack.config.js
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```js{3,68-72}
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const path = require("path");
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const ESLintWebpackPlugin = require("eslint-webpack-plugin");
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const HtmlWebpackPlugin = require("html-webpack-plugin");
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module.exports = {
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entry: "./src/main.js",
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output: {
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path: path.resolve(__dirname, "dist"),
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filename: "static/js/main.js", // 将 js 文件输出到 static/js 目录中
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clean: true, // 自动将上次打包目录资源清空
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},
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module: {
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rules: [
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{
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// 用来匹配 .css 结尾的文件
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test: /\.css$/,
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// use 数组里面 Loader 执行顺序是从右到左
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use: ["style-loader", "css-loader"],
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},
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{
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test: /\.less$/,
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use: ["style-loader", "css-loader", "less-loader"],
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},
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{
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test: /\.s[ac]ss$/,
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use: ["style-loader", "css-loader", "sass-loader"],
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},
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{
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test: /\.styl$/,
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use: ["style-loader", "css-loader", "stylus-loader"],
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},
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{
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test: /\.(png|jpe?g|gif|webp)$/,
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type: "asset",
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parser: {
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dataUrlCondition: {
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maxSize: 10 * 1024, // 小于10kb的图片会被base64处理
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},
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},
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generator: {
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// 将图片文件输出到 static/imgs 目录中
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// 将图片文件命名 [hash:8][ext][query]
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// [hash:8]: hash值取8位
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// [ext]: 使用之前的文件扩展名
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// [query]: 添加之前的query参数
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filename: "static/imgs/[hash:8][ext][query]",
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},
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},
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{
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test: /\.(ttf|woff2?)$/,
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type: "asset/resource",
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generator: {
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filename: "static/media/[hash:8][ext][query]",
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},
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},
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{
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test: /\.js$/,
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exclude: /node_modules/, // 排除node_modules代码不编译
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loader: "babel-loader",
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},
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],
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},
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plugins: [
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new ESLintWebpackPlugin({
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// 指定检查文件的根目录
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context: path.resolve(__dirname, "src"),
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}),
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new HtmlWebpackPlugin({
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// 以 public/index.html 为模板创建文件
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// 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
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template: path.resolve(__dirname, "public/index.html"),
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}),
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],
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mode: "development",
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};
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```
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## 3. 修改 index.html
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去掉引入的 js 文件，因为 HtmlWebpackPlugin 会自动引入
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```html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>webpack5</title>
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</head>
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<body>
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<h1>Hello Webpack5</h1>
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<div class="box1"></div>
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<div class="box2"></div>
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<div class="box3"></div>
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<div class="box4"></div>
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<div class="box5"></div>
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<i class="iconfont icon-arrow-down"></i>
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<i class="iconfont icon-ashbin"></i>
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<i class="iconfont icon-browse"></i>
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</body>
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</html>
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```
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## 4. 运行指令
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```:no-line-numbers
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npx webpack
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```
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此时 dist 目录就会输出一个 index.html 文件
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