webpack-dev-server 没有捆绑到输出文件

Question

我可以按原样使用我的 webpack.config.js 进行 webpack，当我在浏览器中查看我的 index.html 而不使用 webpack-dev-server 时，更改会反映出来。

webpack.config.js

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

var APP_DIR = path.resolve(__dirname, 'src/client/app/');
var BUILD_DIR = path.resolve(__dirname, 'src/client/public/');


var config = {
  entry: APP_DIR + '/index.jsx',
  output: {
    path: BUILD_DIR,
    publicPath: BUILD_DIR,
    filename: 'bundle.js'
  },
  watch: true,
  module : {
    loaders : [
      {
        test : /\.jsx?/,
        include : APP_DIR,
        loader : 'babel-loader'
      }
    ]
  }
};
module.exports = config;

当我尝试运行 webpack-dev-server 监视我的文件时，该服务识别出已保存，returns "Compiled Successfully" 并且应用程序指示它正在刷新我的 localhost:8080/webpack-dev-server/，但不会更新输出中指定的 bundle.js。我已经看到很多问题都是通过包含 publicPath 键值对来解决的，但是我已经包含了它，但是当我的服务器热更新时我仍然看不到编辑。

目录下安装的包如下

{
  "name": "",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": ""
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "babel-loader": "^7.1.2",
    "babel-preset-es2015": "^6.24.1",
    "babel-preset-react": "^6.24.1",
    "react": "^16.0.0",
    "react-dom": "^16.0.0",
    "webpack": "^3.8.1",
    "webpack-dev-server": "^2.9.4"
  },
  "devDependencies": {
    "babel-core": "^6.26.0",
    "webpack-dev-server": "^2.9.4"
  }
}

我正在编译的 jsx 文件是一个简单的第一个反应组件

import React from 'react';
import {render} from 'react-dom';

class App extends React.Component {
  render () {
    return <p>Hello World!</p>;
  }
}

render(<App/>, document.getElementById('app'));

Answer 1

将您的 webpack 配置更改为以下内容：（注意：我更改了 APP_DIR 和 BUILD_DIR 只是为了在这里进行测试。

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

var APP_DIR = path.resolve(__dirname, 'src/');
var BUILD_DIR = path.resolve(__dirname, 'build/');


var config = {
  entry: APP_DIR + '/index.js',
  output: {
    path: BUILD_DIR,
    filename: 'bundle.js',
    publicPath: '/'
  },
  watch: true,
  module : {
    loaders : [
      {
        test : /\.js?/,
        include : APP_DIR,
        loader : 'babel-loader'
      }
    ]
  },
  devServer: {
    contentBase: APP_DIR
  }
};
module.exports = config;

注意我改了：

output.publicPath：这是相对于服务器根目录，而不是绝对路径。更多信息：What does "publicPath" in webpack do?
devServer.contentBase：我更改了这个，所以当我运行服务器时，/src 目录中的 html 文件会被命中。

这应该有效！ =)

webpack-dev-server 没有捆绑到输出文件

webpack-dev-server not bundling to output file

reactjs

webpack

webpack-dev-server