这个优化是两方面的，前端将文件打包成.gz文件，然后通过nginx的配置，让浏览器直接解析.gz文件。

1、compression-webpack-plugin插件打包.gz文件

• 安装插件

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

或者

yarn add compression-webpack-plugin --save-dev

• vue.config.js配置插件

const CompressionWebpackPlugin = require('compression-webpack-plugin')
const productionGzipExtensions = ['js', 'css']
const isProduction = process.env.NODE_ENV === 'production'

....


configureWebpack: {
    plugins: [
      // Ignore all locale files of moment.js
      new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
      new UglifyJsPlugin({
        uglifyOptions: {
          compress: {
            drop_debugger: true,
            drop_console: true
          }
        },
        sourceMap: false,
        parallel: true
      }),
      // 配置compression-webpack-plugin压缩
      new CompressionWebpackPlugin({
        algorithm: 'gzip',
        test: new RegExp('\\.(' + productionGzipExtensions.join('|') + ')$'),
        threshold: 10240,
        minRatio: 0.8
      })
    ]
  },

2、nginx配置：

• gzip config

    # gzip config
    gzip on;
    gzip_min_length 1k;
    gzip_comp_level 9;
    gzip_types text/plain application/javascript application/x-javascript text/css application/xml text/javascript application/x-httpd-php image/jpeg image/gif image/png;
    gzip_vary on;
    gzip_disable "MSIE [1-6]\.";

• 完整示例

server {
    listen 80;
    # gzip config
    gzip on;
    gzip_min_length 1k;
    gzip_comp_level 9;
    gzip_types text/plain application/javascript application/x-javascript text/css application/xml text/javascript application/x-httpd-php image/jpeg image/gif image/png;
    gzip_vary on;
    gzip_disable "MSIE [1-6]\.";

    root /usr/share/nginx/html;

    location / {
        # 用于配合 browserHistory 使用
        try_files $uri $uri/ /index.html;

        # 如果有资源，建议使用 https + http2，配合按需加载可以获得更好的体验 
        # rewrite ^/(.*)$ https://preview.pro.loacg.com/$1 permanent;

    }
    location /api {
        proxy_pass https://preview.pro.loacg.com;
        proxy_set_header   X-Forwarded-Proto $scheme;
        proxy_set_header   Host              $http_host;
        proxy_set_header   X-Real-IP         $remote_addr;
    }
}

server {
  # 如果有资源，建议使用 https + http2，配合按需加载可以获得更好的体验 
  listen 443 ssl http2 default_server;

  # 证书的公私钥
  ssl_certificate /path/to/public.crt;
  ssl_certificate_key /path/to/private.key;

  location / {
        # 用于配合 browserHistory 使用
        try_files $uri $uri/ /index.html;

  }
  location /api {
      proxy_pass https://preview.pro.loacg.com;
      proxy_set_header   X-Forwarded-Proto $scheme;
      proxy_set_header   Host              $http_host;
      proxy_set_header   X-Real-IP         $remote_addr;
  }
}

3、示例

• 打包文件大小信息

 DONE  Compiled successfully in 43951ms                                                                                                                                                                                                                            11:19:06 PM

  File                                    Size              Gzipped

  dist\js\chunk-vendors.6f36ee27.js       2729.43 KiB       829.53 KiB
  dist\js\chunk-42ac50f8.3aed1f5b.js      260.22 KiB        62.60 KiB
  dist\js\app.47d6af3d.js                 89.26 KiB         27.35 KiB
  dist\js\chunk-2f07b9a4.4a3fdd01.js      62.59 KiB         14.08 KiB
  dist\js\chunk-3cfde34a.24cec922.js      24.67 KiB         7.74 KiB
  dist\js\chunk-1d171181.fe12f22a.js      24.63 KiB         6.18 KiB
  dist\js\user.d8960780.js                18.66 KiB         6.47 KiB
  dist\js\chunk-05182e90.d2ed6c5c.js      16.77 KiB         5.63 KiB
  dist\js\chunk-3dd96f82.41706c18.js      13.98 KiB         4.04 KiB
  dist\js\chunk-3085d777.f0a8defc.js      9.91 KiB          2.88 KiB
  dist\js\chunk-4d8431e9.3b47471d.js      8.94 KiB          3.25 KiB
  dist\js\chunk-4492074c.9f53a6c6.js      8.37 KiB          3.14 KiB
  dist\js\chunk-761f0cf1.de4d849b.js      8.15 KiB          2.69 KiB
  dist\js\chunk-605ac6e0.cb0a2add.js      7.79 KiB          2.28 KiB

• 打包后的文件

  
  
  image.png

• Chrome访问

  
  
  image.png