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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ## 生產壞境構建 > 開發環境(development)和生產環境(production)的構建目標差異很大。在開發環境中,我們需要具有強大的、具有實時重新加載(live reloading)或熱模塊替換(hot module replacement)能力的 source map 和 localhost server。而在生產環境中,我們的目標則轉向于關注更小的 bundle,更輕量的 source map,以及更優化的資源,以改善加載時間。由于要遵循邏輯分離,我們通常建議為每個環境編寫彼此獨立的 webpack 配置。 > 文檔看[這里](https://doc.webpack-china.org/guides/production) 首先先創建一個生產環境的配置文件: `touch webpack.config.js` 在`webpack.dev.config.js`的基礎上先做以下幾個修改~ 1. 先刪除`webpack-dev-server`相關的東西~ 2. `devtool`的值改成`cheap-module-source-map` 3. 剛才說的`hash`改成`chunkhash` ~~~ 'use strict' const path = require('path') const webpack = require('webpack') const HtmlWebpackPlugin = require('html-webpack-plugin') function resolve (dir) { return path.join(__dirname, dir) } module.exports = { entry: { app: [ path.join(__dirname, 'src/index.js') ], // 把react等庫生成打包到vendor.hash.js里面去。 vendor: ['react', 'react-router-dom', 'redux', 'react-dom', 'react-redux'] }, // 輸出到dist文件夾,輸出文件名bundle.js output: { path: path.join(__dirname, './dist'), filename: '[name].[chunkhash].js', chunkFilename: '[name].[chunkhash].js' }, // 開發工具 devtool: 'cheap-module-source-map', // 路徑別名配置 resolve: { alias: { '@': resolve('src'), pages: resolve('src/pages'), components: resolve('src/components'), router: resolve('src/router'), actions: resolve('src/redux/actions'), reducers: resolve('src/redux/reducers'), } }, /*src文件夾下面的以.js結尾的文件,要使用babel解析*/ /*cacheDirectory是用來緩存編譯結果,下次編譯加速*/ module: { rules: [{ test: /\.js$/, use: ['babel-loader?cacheDirectory=true'], include: path.join(__dirname, 'src') }, { test: /\.css$/, use: ['style-loader', 'css-loader'] }, { test: /\.(png|jpg|gif)$/, use: [{ loader: 'url-loader', options: { limit: 8192 } }] }] }, // 定義webpack插件 plugins: [ new HtmlWebpackPlugin({ filename: 'index.html', template: path.join(__dirname, 'src/index.html') }), new webpack.optimize.CommonsChunkPlugin({ name: 'vendor' }) ] } ~~~ 然后在`package.json`增加打包腳本 ~~~ "build": "webpack --config webpack.config.js" ~~~ 然后執行`npm run build` ,看看`dist`文件夾是不是生成了我們發布要用的所有文件? 簡單的正式環境部署腳本就是這樣,接下來優化正式環境的配置文件。
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