javascript - 用 express + webpack-dev-middleware/webpack-hot-middleware 替换 webpack-dev-server

Question

我目前正在尝试用基于 express + webpack-middleware 的更强大的解决方案替换我使用 webpack-dev-server 的旧设置。所以我曾经像这样运行它:“webpack-dev-server --content-base public/--history-api-fallback”但现在我想像这样使用它:“node devServer.js”。以下是我当前设置的详细信息。

webpack.config.dev.js:

var path = require('path');
var webpack = require('webpack');
var debug = require('debug');

debug.enable('app:*');

var log = debug('app:webpack');

log('Environment set to development mode.');
var NODE_ENV = process.env.NODE_ENV || 'development';
var DEVELOPMENT = NODE_ENV === 'development';

log('Creating webpack configuration with development settings.');
module.exports = {
  devtool: 'cheap-module-eval-source-map',
  entry: [
    'eventsource-polyfill', // necessary for hot reloading with IE
    'webpack-hot-middleware/client',
    './src/index',
    './src/scss/main.scss',
  ],
  output: {
    path: path.join(__dirname, 'public/js'),
    filename: 'bundle.js',
    publicPath: '/'
  },
  plugins: [
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NoErrorsPlugin()
  ],
  module: {
    loaders: [{
      test: /\.jsx?/,
      loaders: ['babel'],
      include: path.join(__dirname, 'src')
    },
    {
      test: /\.scss$/,
      loader: 'style!css!sass',
    }]
  },
  compiler: {
    hash_type: 'hash',
    stats: {
      chunks: false,
      chunkModules: false,
      colors: true,
    },
  },
};

开发服务器.js:

var path = require('path');
var express = require('express');
var webpack = require('webpack');
var debug = require('debug');
// var history = require('connect-history-api-fallback');
var config = require('./webpack.config.dev');
var browserSync = require('browser-sync');

debug.enable('app:*');

var app = express();
var compiler = webpack(config);
var log = debug('app:devServer');

// app.use(history({ verbose: false }));

log('Enabling webpack dev middleware.');
app.use(require('webpack-dev-middleware')(compiler, {
  lazy: false,
  noInfo: true,
  publicPath: config.output.publicPath,
  quiet: false,
  stats: config.compiler.stats,
}));

log('Enabling Webpack Hot Module Replacement (HMR).');
app.use(require('webpack-hot-middleware')(compiler));


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

app.get('/js/bundle.js', function(req, res) {
    res.sendFile(path.join(__dirname, '/public/js/', 'bundle.js'));
});


var port = 3000;
var hostname = 'localhost';

app.listen(port, hostname, (err) => {
  if (err) {
    log(err);
    return;
  }
  log(`Server is now running at http://${hostname}:${port}.`);
});

var bsPort = 4000;
var bsUI = 4040;
var bsWeInRe = 4444;

browserSync.init({
  proxy: `${hostname}:${port}`,
  port: bsPort,
  ui: {
    port: bsUI,
    weinre: { port: bsWeInRe },
  },
});

你能告诉我哪里错了吗？我的印象是我已经涵盖了所有的基础，但显然我遗漏了一些东西，因为尽管能够访问 html 和 js，但页面没有显示。 :(

Answer 1

你不需要这部分:

app.get('/js/bundle.js', function(req, res) {
    res.sendFile(path.join(__dirname, '/public/js/', 'bundle.js'));
});

webpack-dev-server 中间件会为你做这些。所以，我认为只需删除它即可解决问题。