webpack-dev-server正确监视和编译文件,但浏览器无法访问它们

时间:2016-07-15 17:55:30

标签: javascript node.js webpack webpack-dev-server

编辑:链接到主持此示例的github repo是here,以防有人想要运行它

我遇到了与另一个用户几乎完全相同的问题(你可以找到问题here),因为运行webpack-dev-server确实可以正确编译和监视文件(看到控制台输出)终端),但浏览器仍然无法正确查看我的网站。这是我的webpack.config.js文件:

var webpack = require('webpack'),
    path = require('path'),
    // webpack plugins
    CopyWebpackPlugin = require('copy-webpack-plugin');

var config = {
    context: path.join(__dirname,'app'),
    entry: './index.js',
    output: {
        path: path.join(__dirname, 'public'),
        filename: 'bundle.js',
        publicPath: path.join(__dirname, 'public')
    },
    devServer: {
        // contentBase: './public/'
    },
    plugins: [
        // copies html to public directory
        new CopyWebpackPlugin([
            { from: path.join(__dirname, 'app', 'index.html'),
                to:  path.join(__dirname, 'public')}
        ]),
        // required bugfix for current webpack version
        new webpack.OldWatchingPlugin()
    ],
    module: {
        loaders: [
            // uses babel-loader which allows usage of ECMAScript 6 (requires installing babel-preset-es2015)
            {test: /\.js$/, loader: 'babel', exclude: /node_modules/, query: { presets: ['es2015']}},
            // uses the css-loader (loads css content) and style-loader (inserts css from css-loader into html)
            {test: /\.css$/, loader: 'style!css', exclude: /node_modules/}
        ]
    }
};

module.exports = config;

这是我的目录结构:

+--- webpack/
   +--- app/
      +--- index.html
      +--- index.js
      +--- styles.css
   +--- package.json
   +--- webpack.config.js

目前,运行webpack-dev-server会在浏览器中输出以下内容(请注意缺少public/目录,这是webpack通常输出我的html和javascript包的地方):

Image 1

enter image description here

编辑:添加devServer.contentBase属性并将其设置为public会让浏览器返回403错误,如下所示:

enter image description here

1 个答案:

答案 0 :(得分:2)

好的,所以我能够重现你在我的项目中遇到的问题。为了解决这个问题,我改变了一些事情。

这是我设置的内容。我在输出中定义了一点,并使用jsx而不是js,但结果应该是相同的。您可以将我的src替换为您的源代码。

const config = {
    entry: './src/App.jsx',
    output: {
        filename: 'app.js'
    },
    module: {
        loaders: [
            {
                test: /\.jsx?$/,
                loader: 'babel-loader',
                exclude: /node_modules/,
                query: {
                    presets: ['es2015', 'react', 'stage-0'],
                    plugins: ['add-module-exports']
                }
            },
            {
                include: /\.json$/, loaders: ['json-loader']
            },
            {
                test: /\.scss$/,
                loaders: ['style', 'css?modules', 'sass']
            },
            {
                test: /\.(eot|svg|ttf|woff|woff2)$/,
                loader: 'file?name=fonts/[name].[ext]'
            }
        ]
    },
    plugins: [
        new webpack.ProvidePlugin({
            'Promise': 'exports?module.exports.Promise!es6-promise',
            'fetch': 'imports?self=>global!exports?global.fetch!isomorphic-fetch'
        }),
        new webpack.IgnorePlugin(/^\.\/locale$/, [/moment$/]),
        new webpack.optimize.OccurenceOrderPlugin(),
        new webpack.optimize.DedupePlugin(),
        new webpack.DefinePlugin({
            'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV)
        })
    ],
    resolve: {
        root: path.resolve('./src')
    },
    devServer: {
        contentBase: 'src'
    }
};

所以基本上你想在终端输出这个输出:

terminal example

  • webpack result is served from / - 告诉我们,无论我们建立什么,都将在根
  • content is served from src - 告诉我们它正在从该目录构建

希望这有帮助