5-13 多页面打包配置

love丁酥酥

发布于 2020-06-02 15:37:24

4780

发布于 2020-06-02 15:37:24

文章被收录于专栏：coding for love

1. 简介

前面的配置基本上是基于 spa，不过如果细心的同学可能会发现，之前在 5-5 webapck-dev-server 解决单页应用路由问题一文中已经用到了多页面打包。其实，多页应用很简单，不过是指定多个入口，多个对应输出，以及将输出正确放到 html 中即可。

2. 配置多页面

const HtmlWebpackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const path = require('path');

module.exports = {
  entry: {
    index: './src/index.jsx',
    list: './src/list.jsx',
  },
  output: {
    path: path.resolve(__dirname, '../dist'),
    filename: '[name].js',
  },
  resolve: {
    extensions: ['.js', '.jsx'],
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node-modules/,
        use: ['babel-loader'],
      },
      {
        test: /\.(jpg|jpeg|png|gif)$/,
        use: {
          loader: 'url-loader',
          options: {
            name: '[name].[ext]',
            limit: 2048,
          },
        },
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader'],
      },
      {
        test: /\.(eot|svg|ttf|woff)$/,
        use: 'file-loader',
      },
    ],
  },
  optimization: {
    runtimeChunk: {
      name: 'runtime',
    },
    splitChunks: {
      chunks: 'all',
      cacheGroups: {
        vendors: {
          test: /[\\/]node_modules[\\/]/,
          priority: -10,
          name: 'vendors',
        },
      },
    },
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: './src/index.html',
      filename: 'index.html',
    }),
    new HtmlWebpackPlugin({
      template: './src/index.html',
      filename: 'list.html',
    }),
    new CleanWebpackPlugin(),
  ],
};

<!--src/index.html-->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>esmodule-oop</title>
</head>
<body>
    <div id="root"></div>
</body>
</html>

// src/index.jsx
import React, { Component } from 'react';
import ReactDom from 'react-dom';

class App extends Component {
  render() {
    return <div>index page</div>;
  }
}

ReactDom.render(<App />, document.getElementById('root'));

// src/index.jsx
import React, { Component } from 'react';
import ReactDom from 'react-dom';

class App extends Component {
  render() {
    return <div>index page</div>;
  }
}

ReactDom.render(<App />, document.getElementById('root'));

bpm run dev 后，打开 index.html 和 list.html 都展示

image.png

这是因为 HtmlWebpackPlugin 默认引入所有的 chunks，如果不想引入所有 chunks，我们需要使用 chunks 和 excludeChunks 手动指定。

3. chunks 和 excludeChunks

我们使用如下配置：

plugins: [
    new HtmlWebpackPlugin({
      template: './src/index.html',
      filename: 'index.html',
      chunks: ['runtime', 'vendors', 'index'],
    }),
    new HtmlWebpackPlugin({
      template: './src/index.html',
      filename: 'list.html',
      excludeChunks: ['index'],
    }),
    new CleanWebpackPlugin(),
  ],

打包后得出的结果就正常了。入口较多时，我们可以简化一下写法如下：

// build/webpack.common.js
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const path = require('path');

const entry = {
  index: './src/index.jsx',
  list: './src/list.jsx',
};

const plugins = [
  new CleanWebpackPlugin(),
];

Object.keys(entry).forEach((name) => {
  plugins.push(new HtmlWebpackPlugin({
    template: './src/index.html',
    filename: `${name}.html`,
    chunks: ['runtime', 'vendors', name],
  }));
});


module.exports = {
  entry,
  output: {
    path: path.resolve(__dirname, '../dist'),
    filename: '[name].js',
  },
  resolve: {
    extensions: ['.js', '.jsx'],
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node-modules/,
        use: ['babel-loader'],
      },
      {
        test: /\.(jpg|jpeg|png|gif)$/,
        use: {
          loader: 'url-loader',
          options: {
            name: '[name].[ext]',
            limit: 2048,
          },
        },
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader'],
      },
      {
        test: /\.(eot|svg|ttf|woff)$/,
        use: 'file-loader',
      },
    ],
  },
  optimization: {
    runtimeChunk: {
      name: 'runtime',
    },
    splitChunks: {
      chunks: 'all',
      cacheGroups: {
        vendors: {
          test: /[\\/]node_modules[\\/]/,
          priority: -10,
          name: 'vendors',
        },
      },
    },
  },
  plugins,
};