webpack构建react多页面应用详解

写这个的初衷是很难找一个简洁的项目脚手架,很多脚手架都有很多依赖,光看依赖就要很久,所以自己参照网上的内容,弄个这么一个简单的多页面的脚手架。

利用creat-react-app 新建一个react应用

npm install -g create-react-app

然后创建一个项目

create-react-app demo

create-react-app会自动初始化一个脚手架并安装 React 项目的各种必要依赖,如果在过程中出现网络问题,请用cnpm淘宝镜像安装。

然后我们进入项目并启动。

cd demo

然后启动项目

npm start

那就会看到如下页面


然后进入src/App.js,用下面代码替换App.js中的代码(因为在webpack中暂时不想处理图片和icon)

import React, { Component } from 'react';

import './App.css';

class App extends Component {

render() {

return (

<div className="App">

<div className="App-header">

<h2>Welcome to App</h2>

</div>

<p className="App-intro">

To get started, edit <code>src/App.js</code> and save to reload.

</p>

</div>

);

}

}

export default App

然后将 index.js 中的 内容替换为如下代码(删除registerServiceWorker)

import React from 'react';

import ReactDOM from 'react-dom';

import './index.css';

import App from './App';

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

然后删除src下面的registerServiceWorker.js(该文件用于构建pwa应用用的,暂时我们用不了)和 logo.svg文件(不想处理图片文件)和 App.test.js(用于测试用的)。

现在src/下面有四个文件。接下来,在src下面新建两个文件夹 app1和 app2,分别将原来的四个文件拷贝进入app1和app2。文件目录如下:


接下来,进入public文件下,删除favicon.ico(不想处理)和 manifest.json(构建pwa用的),然后将index.html中的内容用如下内容替换

<!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>

<div id="root"></div>

</body>

</html>

这个index.html就是我们的模版html。

进入正题,开始install webpack和配置webpack

1.安装依赖。将package.json文件用下面的文件替代

{

"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.删除当前目录中的node_modules,然后重新在控制台执行

npm i

3.在根目录下也就是/demo下新建一个webpack.config.js文件,写入如下代码

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.然后用直接执行如下代码

npm run build

成功在dist中看到你的两个页面app1和app2.

如果要自己调试用直接启用npm run start,然后在localhost:8181/app1.html查看页面进行调试。

以上是 webpack构建react多页面应用详解 的全部内容, 来源链接: utcz.com/z/313684.html

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