服务器端渲染：'css-loader/locals' 生成不同的类名然后 bundle.css - webpack

Question

尝试在我的新项目中实现同构渲染，所以我阅读了很多文章，比如 css-loader、状态共享等。因此，经过一番努力之后，我以某种方式在服务器端呈现我的页面 css locals.So 我继续并开始构建其他页面因为一切看起来都很棒，直到我没有禁用 javascript 在我的浏览器上.之后我发现我从服务器收到的 html 上的差异有不同的 css 本地类名，bundle.css 也不同。我真的卡住了。

这是我的 webpack.config。我知道我正在做一些事情 wrong.I 如果你指出，我将不胜感激。

const webpack = require('webpack');
const path = require('path');
const context = path.resolve(__dirname, 'src');
const nodeExternals = require('webpack-node-externals');
const ExtractTextPlugin = require("extract-text-webpack-plugin");

const config = {
    name:"client",
    context,
    entry: './App.js',
    output: {
        path: __dirname+"/.build/assets",
        filename: 'bundle.js'
    },
    devtool: "source-map",
    module: {
        rules: [
            {
                test:/\.(?:js|jsx)$/,
                exclude: /node_modules/,
                use: 'babel-loader',
            },
            {
                test: /\.(?:css|less)$/,
                use: ExtractTextPlugin.extract({
                    use: [
                        {
                            loader: 'css-loader',
                            options: {
                                sourceMap: true,
                                importLoader: true,
                                localIdentName:'[name]__[local]__[hash:base64:7]'
                            }
                        },
                        {
                            loader: 'less-loader',
                            options: {
                                sourceMap: true,
                                importLoader: true,
                                localIdentName:'[name]__[local]__[hash:base64:7]'
                            }
                        }
                    ],
                    fallback: 'style-loader',
                }),
                exclude: /\.(eot|woff|woff2|ttf|svg)(\?[\s\S]+)?$/
            },
            {
                test: /\.(eot|woff|woff2|ttf|svg)(\?[\s\S]+)?$/,
                loader: 'url-loader?limit=1000&name=./fonts/[name].[ext]?[hash:base64:5]#icomoon',
            }
        ]
    },
    plugins: [
        new ExtractTextPlugin({
            filename: 'bundle.css',
            allChunks: true,
        }),
        new webpack.DefinePlugin({
            "process.env": {
                // Mainly used to require CSS files with webpack, which can happen only on browser
                // Used as `if (process.env.BROWSER)...`
                BROWSER: JSON.stringify(true),

                // Useful to reduce the size of client-side libraries, e.g. react
                NODE_ENV: JSON.stringify("production")

            }
        }),
    ],
    resolve: {
        extensions: ['.jsx', '.js', '.json']
    }
};

const serverConfig = {
    name: 'server',
    target: 'node',
    externals: [nodeExternals()],
    entry: [
        './index.js'
    ],
    output: {
        path: path.join(__dirname, './.build'),
        filename: 'server.build.js',
        publicPath: '.build/',
        libraryTarget: 'commonjs2'
    },
    module: {
        loaders: [
            {
                test:/\.(?:js|jsx)$/,
                exclude: /node_modules/,
                use: 'babel-loader',
            },
            {
                test: /\.(?:css|less)$/,
                use: "css-loader/locals?localIdentName=[name]__[local]__[hash:base64:7]",
                exclude: /\.(eot|woff|woff2|ttf|svg)(\?[\s\S]+)?$/
            },
            {
                test: /\.(eot|woff|woff2|ttf|svg)(\?[\s\S]+)?$/,
                loader: 'url-loader?limit=1000&name=./fonts/[name].[ext]?[hash:base64:5]#icomoon',
            }
        ]
    },
    resolve: {
        extensions: ['.jsx', '.js', '.json']
    }
};

module.exports = [config, serverConfig];

例如：我从服务器端 html 得到了 .style__header__1H9xAC9 并且在 bundle.css 中得到了 .style__header__2uiLmVi 但是如果我启用 JavaScript，应用程序再次在客户端呈现 bundle.css 包含的相同类名。

Answer 1

在解决这个问题之后，我发现我的错误在 webpack.config，我在客户端使用 context 而不是在服务器端。所以我从客户端删除了它，一切正常。

const webpack = require('webpack');
const path = require('path');
const context = path.resolve(__dirname, 'src');

const config = {
    name:"client",
    context,
    entry: './App.js',
    output: {
        path: __dirname+"/.build/assets",
        filename: 'bundle.js'
    },

到

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

 const config = {
     name:"client",
//-----------xxx------------
     entry: './App.js',
     output: {
         path: __dirname+"/.build/assets",
         filename: 'bundle.js'
     },

感谢您的关注:)

服务器端渲染：'css-loader/locals' 生成不同的类名然后 bundle.css - webpack

Server Side render : 'css-loader/locals' generate different classNames then bundle.css - webpack

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