下载插件

需要注意的是要指定低版本，要不然会报错
Cannot read property 'tapPromise' of undefined

npm install compression-webpack-plugin@5.0.1 --save-dev

配置

//vue.config.js
 // 导入compression-webpack-plugin
 const CompressionWebpackPlugin = require('compression-webpack-plugin')
 // 定义压缩文件类型
 const productionGzipExtensions = ['js', 'css']

module.exports = {
    configureWebpack: {
        plugins: [
          new CompressionWebpackPlugin({
            filename: '[path].gz[query]',
            algorithm: 'gzip',
            test: new RegExp('.(' + productionGzipExtensions.join('|') + ')$'),
            threshold: 10240,
            minRatio: 0.8
          })
        ]
    }
}

完整配置参考

'use strict'
const path = require('path')
const defaultSettings = require('./src/settings.js')

 // 导入compression-webpack-plugin
 const CompressionWebpackPlugin = require('compression-webpack-plugin')
 // 定义压缩文件类型
 const productionGzipExtensions = ['js', 'css']

function resolve(dir) {
  return path.join(__dirname, dir)
}

const name = defaultSettings.title || 'vue Admin Template' // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 9528 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  publicPath: '/',
  outputDir: 'dist',
  assetsDir: 'static',
  lintOnSave: process.env.NODE_ENV === 'development',
  productionSourceMap: false,
  devServer: {
    port: port,
    open: false,
    overlay: {
      warnings: false,
      errors: true
    },
    proxy: {
      '/api': {
        target: 'http://localhost:7001/api',
        changeOrigin: true,
        pathRewrite: {
          '^/api': ''
        }
      }
    }
    // proxy: {
    //   // change xxx-api/login => mock/login
    //   // detail: https://cli.vuejs.org/config/#devserver-proxy
    //   [process.env.VUE_APP_BASE_API]: {
    //     target: `http://127.0.0.1:${port}/mock`,
    //     changeOrigin: true,
    //     pathRewrite: {
    //       ['^' + process.env.VUE_APP_BASE_API]: ''
    //     }
    //   }
    // },
    // after: require('./mock/mock-server.js')
  },
  configureWebpack: {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    name: name,
    resolve: {
      alias: {
        '@': resolve('src')
      }
    },
    plugins: [
      new CompressionWebpackPlugin({
        filename: '[path].gz[query]',
        algorithm: 'gzip',
        test: new RegExp('.(' + productionGzipExtensions.join('|') + ')$'),
        threshold: 10240,
        minRatio: 0.8
      })
    ]
  },
  chainWebpack(config) {
    config.plugins.delete('preload') // TODO: need test
    config.plugins.delete('prefetch') // TODO: need test

    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    // set preserveWhitespace
    config.module
      .rule('vue')
      .use('vue-loader')
      .loader('vue-loader')
      .tap(options => {
        options.compilerOptions.preserveWhitespace = true
        return options
      })
      .end()

    config
      // https://webpack.js.org/configuration/devtool/#development
      .when(process.env.NODE_ENV === 'development', config =>
        config.devtool('cheap-source-map')
      )

    config.when(process.env.NODE_ENV !== 'development', config => {
      config
        .plugin('ScriptExtHtmlWebpackPlugin')
        .after('html')
        .use('script-ext-html-webpack-plugin', [
          {
            // `runtime` must same as runtimeChunk name. default is `runtime`
            inline: /runtime\..*\.js$/
          }
        ])
        .end()
      config.optimization.splitChunks({
        chunks: 'all',
        cacheGroups: {
          libs: {
            name: 'chunk-libs',
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: 'initial' // only package third parties that are initially dependent
          },
          elementUI: {
            name: 'chunk-elementUI', // split elementUI into a single package
            priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
          },
          commons: {
            name: 'chunk-commons',
            test: resolve('src/components'), // can customize your rules
            minChunks: 3, //  minimum common number
            priority: 5,
            reuseExistingChunk: true
          }
        }
      })
      config.optimization.runtimeChunk('single')
    })
  }
}

打包

使用npm run build打包后
出现.gz文件就代表成功了