webpack + express配置服务器加载不了生成的JS文件

Question

我根据官方文档用 webpack-dev-middleware 配合 express启动web服务器加载js文件404错误，用webpack-dev-server是可以的。

webpack.config.js文件：

const path = require('path');

const HtmlWebpackPlugin = require('html-webpack-plugin');

const CleanWebpackPlugin = require('clean-webpack-plugin');

module.exports = {

  entry: {

    hello: './src/index.js'

  },

  devtool: 'inline-source-map', // 追踪错误和警告

  devServer: { // 一个简单的服务器

    contentBase: './dist' // 静态文件路径

  },

  plugins: [

    new CleanWebpackPlugin(['dist']), // 构建前清理dist文件夹

    new HtmlWebpackPlugin({ // 动态生成index.html插件

      title: 'Ajax demo',

      template: 'index.html', // 模板文件

      inject: true // 模板注入

    })

  ],

  output: {

    filename: '[name].bundle.js',

    path: path.resolve(__dirname, 'dist'),

    publicPath: '/' // 服务器端路径

  }

};

server.js,就是官方文档中的代码:

const express = require('express');

const webpack = require('webpack');

const webpackDevMiddleware = require('webpack-dev-middleware');

const app = express();

const config = require('./webpack.config.js');

const compiler = webpack(config);

// Tell express to use the webpack-dev-middleware and use the webpack.config.js

// configuration file as a base.

app.use(webpackDevMiddleware(compiler, {

  publicPath: config.output.publicPath

}));

// Serve the files on port 3000.

app.listen(3000, function () {

  console.log('Example app listening on port 3000!\n');

});

Answer 1

webpack-dev-middleware把生成的文件写入到内存中了...把开发环境下的output.path改成/就好了。