在React服务器中提供gzip文件

时间:2017-07-05 16:05:20

标签: javascript reactjs express webpack gzip

我在React中实际提供我的bundle.js文件的gzip压缩时遇到了麻烦。我试图大幅度减小这个尺寸,我已经完成了uglify和重复数据删除等等......它从2.9mb下降到2.6mb这对我来说真的很奇怪。我现在使用压缩插件,我得到一个输出的gzip文件,但现在我仍在服务bundle.js而不是bundle.js.gz。

我不想使用express中的压缩中间件,因为我在构建过程中使用gzip。无论如何,这是我的distServer文件:

import express from 'express';
import path from 'path';
import open from 'open';

/* eslint-disable no-console */

const port = process.env.PORT || 3000;
const app = express();


app.use(express.static('dist'));

app.get('*.js', function(req, res, next) {
 req.url = req.url + '.gz';
 res.set('Content-Encoding', 'gzip');
 res.set('Content-Type', 'text/javascript');
 next();
});

app.get('*.css', function(req, res, next) {
 req.url = req.url + '.gz';
 res.set('Content-Encoding', 'gzip');
 res.set('Content-Type', 'text/css');
 next();
});

app.get('*', function(req, res) {
  res.sendFile(path.join( __dirname, '../dist/index.html'));
});

app.listen(port, function(err) {
  if (err) {
    console.log(err);
  } else {
    open(`http://localhost:${port}`);
  }
});

我的webpack配置是:

import webpack from 'webpack';
import path from 'path';
import ExtractTextPlugin from 'extract-text-webpack-plugin';

var CopyWebpackPlugin = require('copy-webpack-plugin');
var CompressionPlugin = require("compression-webpack-plugin");
var BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;

export default {
  devtool: 'source-map',
  noInfo: false,
  entry: [
    './src/index'
  ],
  target: 'web',
  output: {
    path: __dirname + '/dist', // Note: Physical files are only output by the production build task `npm run build`.
    publicPath: '/',
    filename: 'bundle.js'
  },
  plugins: [
    // new BundleAnalyzerPlugin(),
    new webpack.optimize.OccurenceOrderPlugin(),
    new webpack.DefinePlugin({
      'process.env': {NODE_ENV: '"production"'}
    }),
    new ExtractTextPlugin('styles.css'),
    new webpack.optimize.DedupePlugin(),
    new webpack.optimize.UglifyJsPlugin({
      mangle: true,
      compress: {
        warnings: false, // Suppress uglification warnings
        pure_getters: true,
        unsafe: true,
        unsafe_comps: true,
        screw_ie8: true
      },
      output: {
        comments: false,
      },
      exclude: [/\.min\.js$/gi] // skip pre-minified libs
    }),
    new CopyWebpackPlugin([
      { from: 'src/robots.txt', to: 'robots.txt' },
      { from: 'src/sitemap.xml', to: 'sitemap.xml' }
    ], {
      copyUnmodified: true
    }),
    new webpack.IgnorePlugin(/^\.\/locale$/, [/moment$/]),
    new CompressionPlugin({
      asset: "[path].gz[query]",
      algorithm: "gzip",
      test: /\.js$|\.css$|\.html$/,
      threshold: 10240,
      minRatio: 0
    })
  ],
  module: {
    loaders: [
      {test: /\.js$/, include: path.join(__dirname, 'src'), loaders: ['babel']},
      {test: /(\.css)$/, loader: ExtractTextPlugin.extract("css?sourceMap")},
      {test: /\.eot(\?v=\d+\.\d+\.\d+)?$/, loader: 'file'},
      {test: /\.(woff|woff2)$/, loader: 'url?prefix=font/&limit=5000'},
      {test: /\.ttf(\?v=\d+\.\d+\.\d+)?$/, loader: 'url?limit=10000&mimetype=application/octet-stream'},
      {test: /\.(jpe?g|png|gif|svg)$/i, loader: "url?limit=10000"},
      {test: /\.svg(\?v=\d+\.\d+\.\d+)?$/, loader: 'url?limit=10000&mimetype=image/svg+xml'},
      {
        test: /favicon\.ico$/,
        loader: 'url',
        query: {
          limit: 1,
          name: '[name].[ext]',
        },
      }
    ]
  }
};

我认为app.get函数会根据需要引入这些gzip文件,但我可能会错过一步?另外,在我的index.html文件中,是否需要省略一起引入捆绑文件的脚本标记?

任何指导和想法都将不胜感激!

2 个答案:

答案 0 :(得分:0)

听起来您首先要验证您是否正在提供gzip压缩文件,这可以通过Chrome DevTools轻松完成。

打开Chrome DevTools,转到performance标签并查看您的网站。加载后,检查网络请求部分,找到要验证的Javascript文件正在被gzip压缩。如果操作正确,您将看到something like this,其中encoded data是通过线路发送的(希望压缩的)数据的大小,decoded body是未压缩数据的大小。

如果两者相等,那么你可以正确地进行gzipping,但不能发送它。

我建议您在反向代理级别处理此问题,理想情况下使用NGINX gzip static module来处理gzip压缩文件。你真的应该使用NGINX来提供静态内容,因为它会占用你的节点服务器。

答案 1 :(得分:0)

您应该将静态列表放在中间件

之后
import express from 'express';
import path from 'path';
import open from 'open';

/* eslint-disable no-console */

const port = process.env.PORT || 3000;
const app = express();


app.get('*.js', function(req, res, next) {
 req.url = req.url + '.gz';
 res.set('Content-Encoding', 'gzip');
 res.set('Content-Type', 'text/javascript');
 next();
});

app.get('*.css', function(req, res, next) {
 req.url = req.url + '.gz';
 res.set('Content-Encoding', 'gzip');
 res.set('Content-Type', 'text/css');
 next();
});

app.use(express.static('dist'));

app.get('*', function(req, res) {
  res.sendFile(path.join( __dirname, '../dist/index.html'));
});

app.listen(port, function(err) {
  if (err) {
    console.log(err);
  } else {
    open(`http://localhost:${port}`);
  }
});