這篇文章主要介紹了webpack建立react多頁面應用程式詳解,小編覺得挺不錯的,現在分享給大家,也給大家做個參考。一起跟著小編過來看看吧
寫這篇的初衷是很難找一個簡潔的專案鷹架,很多腳手架都有很多依賴,光看依賴就要很久,所以自己參照網上的內容,弄個這麼一個簡單的多頁面的鷹架。
利用creat-react-app 新建一個react應用程式
npm install -g create-react-app
然後建立一個專案
create-react-app demo
create-react-app會自動初始化一個鷹架並安裝React 專案的各種必要依賴,如果在過程中出現網路問題,請用cnpm淘寶鏡像安裝。
然後我們進入專案並啟動。
cd demo
然後啟動專案
npm start
那就會看到如下頁面
#然後進入src/App.js,用下面程式碼取代App.js中的程式碼(因為在webpack中暫時不想處理圖片和icon)
import React, { Component } from 'react'; import './App.css'; class App extends Component { render() { return ( <p className="App"> <p className="App-header"> <h2>Welcome to App</h2> </p> <p className="App-intro"> To get started, edit <code>src/App.js</code> and save to reload. </p> </p> ); } } export default App
然後將index.js 中的內容替換為如下程式碼(刪除registerServiceWorker)
import React from 'react'; import ReactDOM from 'react-dom'; import './index.css'; import App from './App'; ReactDOM.render(<App />, document.getElementById('root'));
然後刪除src下面的registerServiceWorker.js(該檔案用於建立pwa應用用的,暫時我們用不了)和logo.svg檔案(不想處理圖片檔案)和App.test.js(測試用的) 。
現在src/下面有四個檔案。接下來,在src下面新建兩個資料夾 app1和 app2,分別將原來的四個檔案拷貝進入app1和app2。檔案目錄如下:
接下來,進入public檔案下,刪除favicon.ico(不想處理)和manifest.json(建置pwa用的),然後將index.html中的內容用以下內容替換
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <meta name="theme-color" content="#000000"> <title>React App</title> </head> <body> <noscript> You need to enable JavaScript to run this app. </noscript> <p id="root"></p> </body> </html>
這個index.html就是我們的模版html。
進入正題,開始install webpack和設定webpack
1.安裝相依性。將package.json檔案用下面的檔案取代
{ "name": "demo", "version": "0.1.0", "private": true, "dependencies": { "react": "^15.6.1", "react-dom": "^15.6.1" }, "devDependencies": { "babel-core": "^6.26.0", "babel-loader": "^7.1.2", "babel-preset-es2015": "^6.24.1", "babel-preset-react": "^6.24.1", "clean-webpack-plugin": "^0.1.16", "css-loader": "^0.28.7", "extract-text-webpack-plugin": "^3.0.0", "file-loader": "^1.0.0", "glob": "^7.1.2", "html-webpack-plugin": "^2.30.1", "postcss-loader": "^2.0.6", "style-loader": "^0.18.2", "url-loader": "^0.5.9", "webpack": "^3.5.6", "webpack-dev-server": "^2.8.1" }, "scripts": { "start": "webpack-dev-server --open", "build": "webpack" } }
2.刪除目前目錄中的node_modules,然後重新在控制台執行
npm i
3.在根目錄下也就是/demo下新建一個webpack.config.js檔,寫入如下程式碼
const webpack = require('webpack'); const glob = require('glob'); const path = require('path'); const HtmlWebpackPlugin = require('html-webpack-plugin'); const ExtractTextPlugin = require('extract-text-webpack-plugin'); const CleanWebpackPlugin = require('clean-webpack-plugin'); const webpackConfig = { entry: {}, output:{ path:path.resolve(__dirname, './dist/'), filename:'[name].[chunkhash:6].js' }, //设置开发者工具的端口号,不设置则默认为8080端口 devServer: { inline: true, port: 8181 }, module:{ rules:[ { test:/\.js?$/, exclude:/node_modules/, loader:'babel-loader', query:{ presets:['es2015','react'] } }, { test: /\.(scss|sass|css)$/, loader: ExtractTextPlugin.extract({fallback: "style-loader", use: "css-loader"}) }, ] }, plugins: [ new ExtractTextPlugin("[name].[chunkhash:6].css"), new CleanWebpackPlugin( ['dist'], { root: __dirname, verbose: true, dry: false } ) ], }; // 获取指定路径下的入口文件 function getEntries(globPath) { const files = glob.sync(globPath), entries = {}; files.forEach(function(filepath) { const split = filepath.split('/'); const name = split[split.length - 2]; entries[name] = './' + filepath; }); return entries; } const entries = getEntries('src/**/index.js'); Object.keys(entries).forEach(function(name) { webpackConfig.entry[name] = entries[name]; const plugin = new HtmlWebpackPlugin({ filename: name + '.html', template: './public/index.html', inject: true, chunks: [name] }); webpackConfig.plugins.push(plugin); }) module.exports = webpackConfig;
4.然後用直接執行如下程式碼
npm run build
成功在dist中看到你的兩個頁面app1和app2.
如果要自行調試用直接啟用npm run start,然後在localhost:8181/app1.html查看頁面進行調試。
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