webpack配置--传统多页面项目

//依赖包--package.json文件
{
  "name": "webemeet",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "dependencies": {
    "cnpm": "^6.1.0",
    "expose-loader": "^0.7.5",
    "html-loader": "^0.5.5",
    "jquery": "^3.4.1"
  },
  "devDependencies": {
    "@babel/core": "^7.5.5",
    "@babel/preset-env": "^7.5.5",
    "autoprefixer": "^9.6.1",
    "babel": "^6.23.0",
    "babel-core": "^6.26.3",
    "babel-loader": "^7.1.5",
    "bootstrap": "^3.4.1",
    "clean-webpack-plugin": "^3.0.0",
    "css-loader": "^3.1.0",
    "extract-text-webpack-plugin": "^4.0.0-beta.0",
    "file-loader": "^4.1.0",
    "html-webpack-plugin": "^3.2.0",
    "less": "^3.9.0",
    "less-loader": "^5.0.0",
    "mini-css-extract-plugin": "^0.8.0",
    "postcss-loader": "^3.0.0",
    "raw-loader": "^3.1.0",
    "style-loader": "^0.23.1",
    "url-loader": "^2.1.0",
    "webpack": "^4.38.0",
    "webpack-cli": "^3.3.6",
    "webpack-dev-server": "^3.7.2"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "build": "webpack --mode production",
    "serve": "webpack-dev-server --mode development"
  },
  "author": "",
  "license": "ISC"
}

webpack.config.js配置:(热加载,编译less.等常用功能都有)

const HtmlWebpackPlugin = require('html-webpack-plugin')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const webpack = require("webpack");
const ExtractTextPlugin = require("extract-text-webpack-plugin");
const {
    CleanWebpackPlugin
} = require("clean-webpack-plugin")
var path = require('path');
module.exports = {
    // index2: './src/js/entry2.js'
    entry: {
        index: path.resolve(__dirname, './src/index/indexentry.js'),
        about: path.resolve(__dirname, './src/about/aboutentry.js'),
    },
    output: { //输出文件
        // filename: 'index.js', //输出文件名
        filename: './js/[name].js',
        path: path.resolve(__dirname, 'dist'),
        // publicPath: 'static', //输出解析文件的目录，url 相对于 HTML 页面
        // publicPath: __dirname + '/out',//添加静态资源, 否则会出现路径错误
    },
    module: {
        rules: [ // 提取html中直接引用的本地文件
            {
                test: /\.html$/,
                loader: 'html-loader'
            },
            {
                test: /.js$/,
                use: ['babel-loader']
            },
            // {
            //     test: /.css$/,
            //     use: ['style-loader', 'css-loader']
            // },
            // /*解析css, 并把css添加到html的style标签里*/
            // {
            //     test: /.less$/,
            //     use: ['style-loader', 'css-loader', 'less-loader']
            // },
            // /*解析less, 把less解析成浏览器可以识别的css语言*/
            {
                test: /\.css$/,
                // include: [path.resolve(__dirname, 'src')],
                use: [
                    MiniCssExtractPlugin.loader,
                    'css-loader',
                    {
                        loader: 'postcss-loader',
                        options: {
                            outputPath: './css/',
                            plugins: [require('autoprefixer')]
                        }
                    }
                ]
            },
            {
                test: /\.less$/,
                use: [
                    MiniCssExtractPlugin.loader,
                    'css-loader',
                    {
                        loader: 'postcss-loader',
                        options: {
                            outputPath: './css/',
                            plugins: [require('autoprefixer')] // 添加css中的浏览器前缀
                        }
                    },
                    'less-loader'
                ]
            },
            // {
            //     test: /.(jpg|png|gif|svg)$/,
            //     use: ['url-loader?limit=8192&name=./[name].[ext]']
            // },
            {
                test: /\.(png|jpg|gif)$/,
                use: [{
                    loader: 'url-loader',
                    options: {
                        outputPath: 'images/', //输出到images文件夹
                        limit: 500 //是把小于500B的文件打成Base64的格式，写入JS
                    }
                }]
            },
            /*解析图片*/
            {
                test: /\.(woff|woff2)(\?v=\d+\.\d+\.\d+)?$/,
                use: ['url-loader']
            },
            {
                test: /\.ttf(\?v=\d+\.\d+\.\d+)?$/,
                use: ['url-loader']
            },
            {
                test: /\.eot(\?v=\d+\.\d+\.\d+)?$/,
                use: ['url-loader']
            },
            {
                test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
                use: ['url-loader']
            }

        ]
    },
    plugins: [
        // 提取多个chunk之间的公共内容到一个公共chunk
        // new webpack.optimize.CommonsChunkPlugin({
        //     name: 'common',
        //     chunks: ['index', 'index2'],
        //     minChunks: 2,
        // }),
        /* 打包构建html文件 */
        new HtmlWebpackPlugin({
            filename: 'index.html', // 配置输出文件名和路径
            template: './src/index/index.html', // 配置要被编译的html文件
            chunks: ['index'],
            // chunks: ['index', "vendor", "common"],
            // favicon:'./src/img/apple-touch-icon.png
            // inject: 'head', // [js|css]注入到body部分
            /* 压缩html.................................................................................................................................................. */
            hash: true,
            // 压缩 => production 模式使用
            minify: {
                removeAttributeQuotes: true, //删除双引号
                collapseWhitespace: true //折叠 html 为一行
            },
            /*.................................................................................................................................................. */
        }),
        new HtmlWebpackPlugin({
            filename: 'about.html', // 配置输出文件名和路径
            template: './src/about/about.html', // 配置要被编译的html文件
            inject: 'head', // [js|css]注入到body部分
            chunks: ['about'],
            // chunks: ['index2', "vendor", "common"],
            /* 压缩html.................................................................................................................................................. */
            hash: true,
            // 压缩 => production 模式使用
            minify: {
                removeAttributeQuotes: true, //删除双引号
                collapseWhitespace: true //折叠 html 为一行
            },
            /*.................................................................................................................................................. */
        }),
        new MiniCssExtractPlugin({
            filename: '[name].css',
            chunkFilename: '[id].css'
        }),
        new CleanWebpackPlugin(),
        new webpack.ProvidePlugin({
            $: 'jquery',
            jQuery: 'jquery',
        }),
        new ExtractTextPlugin("css/[name].[contenthash].css"),
        new webpack.HotModuleReplacementPlugin() // 热更新插件
    ],
    mode: 'development', // 设置mode
    // optimization: {
    //     splitChunks: {
    //         cacheGroups: {
    //             commons: {
    //                 // 抽离自己写的公共代码
    //                 chunks: 'initial',
    //                 name: 'common', // 打包后的文件名，任意命名
    //                 minChunks: 2, //最小引用2次
    //                 minSize: 0 // 只要超出0字节就生成一个新包
    //             },
    //             styles: {
    //                 name: 'styles', // 抽离公用样式
    //                 test: /\.css$/,
    //                 chunks: 'all',
    //                 minChunks: 2,
    //                 enforce: true
    //             },
    //             vendor: {
    //                 // 抽离第三方插件
    //                 test: /node_modules/, // 指定是node_modules下的第三方包
    //                 chunks: 'initial',
    //                 name: 'vendor', // 打包后的文件名，任意命名
    //                 // 设置优先级，防止和自定义的公共代码提取时被覆盖，不进行打包
    //                 priority: 10
    //             },
    //         }
    //     }
    // },
    devServer: {
        before(app, server, compiler) {
            const watchFiles = ['.html', '.less'];

            compiler.hooks.done.tap('done', () => {
                const changedFiles = Object.keys(compiler.watchFileSystem.watcher.mtimes);

                if (
                    this.hot &&
                    changedFiles.some(filePath => watchFiles.includes(path.parse(filePath).ext))
                ) {
                    server.sockWrite(server.sockets, 'content-changed');
                }
            })
        },
        host: 'localhost', //服务器IP地址,可以是localhost
        compress: true, //服务端压缩是否开启
        open: true, // 自动打开浏览器
        hot: true, // 开启热更新
        port: 8888,
        hotOnly: true
    }

}

文件目录:

补充:

　　1.配置视频文件:https://stackoverflow.com/questions/45645675/webpack-3-locates-mp4-file-but-video-is-not-playable

　　2.压缩css:(需要安装cssnano包 npm install cssnano）https://my.oschina.net/itlangz/blog/2986976

 const MiniCssExtractPlugin = require('mini-css-extract-plugin')
 const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin')

 plugins:[
         new OptimizeCSSAssetsPlugin({
         assetNameRegExp: /\.css$/g,
         cssProcessor: require('cssnano'),
         // cssProcessorOptions: cssnanoOptions,
         cssProcessorPluginOptions: {
             preset: ['default', {
                 discardComments: {
                     removeAll: true,
                 },
                 normalizeUnicode: false
             }]
         },
         canPrint: true
     })
 ]