Webpack4-从较少的文件导入的CSS文件不是'；不要缩小

我正在用Webpack4做一个项目。事实上，所有这些都能正常工作，我只是在缩小CSS方面遇到了麻烦

如果在我的入口点中包含一个.css或.less文件，那么一切都正常工作。如果我使用

@include./myfile.less'

，它也可以正常工作。但是，如果我使用

@include./myfile.css'

，则该节将在不缩小的情况下导入

如何使导入的CSS文件正常工作

webpack.config

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin'); //installed via npm
const webpack = require('webpack'); //to access built-in plugins
const CopyWebpackPlugin = require('copy-webpack-plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

module.exports = {

    entry: {
        'app': './src/app/app.js',
    },

    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: '[name].bundle.js'
    },

    module: {
        rules: [
            {
                test: /\.html/,
                use: 'html-loader'
            },
            {
                test: /\.less$/,
                use: [
                    {
                        loader: MiniCssExtractPlugin.loader,
                    },
                    "css-loader",
                    "less-loader"
                ]
            },
            {
                test: /\.(png|svg|jpg|gif)$/,
                use: ['file-loader?name=assets/images/[path][name].[ext]?[hash]']
            },
            {
                test: /\.(woff|woff2|eot|ttf|otf)$/,
                use: [
                    'file-loader?name=assets/fonts/[name].[ext]?[hash]'
                ]
            }
        ],
    },

    plugins: [
        new HtmlWebpackPlugin({ template: './src/public/index.html' }),
        new MiniCssExtractPlugin({
            // Options similar to the same options in webpackOptions.output
            // both options are optional
            filename: "[name].bundle.css",
            chunkFilename: "[id].css"
        }),
    ]

};

我找到了便条

以下是解决问题的方法：

具体增加：

const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
const OptimizeCSSAssetsPlugin = require("optimize-css-assets-webpack-plugin");
...
module.exports = {
    ... 
    optimization: {
        minimizer: [
            new UglifyJsPlugin({
                cache: true,
                parallel: true,
                sourceMap: true // set to true if you want JS source maps
            }),
            new OptimizeCSSAssetsPlugin({})
        ]
    },
}

---

虽然Webpack5可能内置了CSS最小化功能，但Webpack4需要自带自己的CSS最小化功能。要缩小输出，请使用类似optimize css assets webpack插件的插件。设置optimization.minimizer会覆盖webpack提供的默认值，因此请确保还指定了JS minimizer

webpack.config.js

const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const OptimizeCSSAssetsPlugin = require("optimize-css-assets-webpack-plugin");
module.exports = {
  optimization: {
    minimizer: [
      new UglifyJsPlugin({
        cache: true,
        parallel: true,
        sourceMap: true // set to true if you want JS source maps
      }),
      new OptimizeCSSAssetsPlugin({})
    ]
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: "[name].css",
      chunkFilename: "[id].css"
    })
  ],
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [
          MiniCssExtractPlugin.loader,
          "css-loader"
        ]
      }
    ]
  }
}

---

谢谢你的回答，但请在你的回答中添加一些描述，这些描述可以让你的回答更可靠、更容易理解。这已经过时了

use: [
    MiniCssExtractPlugin.loader,
    {
        loader: "css-loader",
        options: {
            minimize: true
        }
    }
]