webpack4和react 搭建多页面应用的实现方法

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发布时间：2018-08-02 14:28:23

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来源于php中文网

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这篇文章给大家介绍的内容是关于webpack4和react 搭建多页面应用的实现方法，有一定的参考价值，有需要的朋友可以参考一下，希望对你有所帮助。

webpack 升级到4之后还没好好的同步一个可实用的webpack架子，接下来用webpack4来搭建一个简单的react的多界面应用，废话不说直接撸码

创建工程

$ mkdir demo && cd demo
$ npm init -y

目录结构

![工程目录结构][1]

webpack 配置

安装react + babel 依赖

$ npm i -S react@16.3.0 react-dom@16.3.0

$ npm i -D webpack@4.4.1 webpack-cli@2.0.13 webpack-dev-server@3.1.1 webpack-merge@4.1.2 babel-cli@6.26.0 babel-preset-env@1.6.1 babel-preset-react@6.24.1 babel-preset-react-hmre@1.1.1 babel-loader@7.1.4 file-loader@1.1.11 url-loader@1.0.1

webpack.base.conf.js(config -> webpack)

const entry = require("./webpack.entry.conf");
const newEntry = {};
for (let name in entry) {
    newEntry[name] = entry[name][0]
}
let config = {
    entry: newEntry,
    resolve: {
        extensions: [".js", ".json", ".jsx", ".css", ".pcss"],
    }
};
module.exports = config;

webpack.dev.conf.js

const webpack = require('webpack');//引入webpack
const opn = require('opn');//打开浏览器
const merge = require('webpack-merge');//webpack配置文件合并
const path = require("path");
const baseWebpackConfig = require("./webpack.base.conf");//基础配置
const webpackFile = require("./webpack.file.conf");//一些路径配置
const eslintFormatter = require('react-dev-utils/eslintFormatter');

let config = merge(baseWebpackConfig, {
    /*设置开发环境*/
    mode: 'development',
    output: {
        path: path.resolve(webpackFile.devDirectory),
        filename: 'js/[name].js',
        chunkFilename: "js/[name].js",
        publicPath: ''
    },
    optimization: {
        runtimeChunk: {
            name: 'manifest'
        },
        // 包拆分
        splitChunks: {
            cacheGroups: {
                common: {   // 项目的公共组件
                    chunks: "initial",
                    name: "common",
                    minChunks: 2,
                    maxInitialRequests: 5,
                    minSize: 0
                },
                vendor: {   // 第三方组件
                    test: /node_modules/,
                    chunks: "initial",
                    name: "vendor",
                    priority: 10,
                    enforce: true
                }
            }
        }
    },
    plugins: [
        /*设置热更新*/
        new webpack.HotModuleReplacementPlugin(),
    ],
    module: {
        rules: [
            {
                test: /\.(js|jsx)$/,
                use: [
                    'babel-loader',
                    'cache-loader',
                ],
                include: [
                    path.resolve(__dirname, "../../app"),
                    path.resolve(__dirname, "../../entryBuild")
                ],
                exclude: [
                    path.resolve(__dirname, "../../node_modules")
                ],
            },
            {
                test: /\.(css|pcss)$/,
                loader: 'style-loader?sourceMap!css-loader?sourceMap!postcss-loader?sourceMap',
                exclude: /node_modules/
            },
            {
                test: /\.(png|jpg|gif|ttf|eot|woff|woff2|svg|swf)$/,
                loader: 'file-loader?name=[name].[ext]&outputPath=' + webpackFile.resource + '/'
            },
            {
                test: /\.(js|jsx)$/,
                enforce: 'pre',
                use: [
                    {
                        options: {
                            formatter: eslintFormatter,
                            eslintPath: require.resolve('eslint'),
                            // @remove-on-eject-begin
                            baseConfig: {
                                extends: [require.resolve('eslint-config-react-app')],
                            },
                            //ignore: false,
                            useEslintrc: false,
                            // @remove-on-eject-end
                        },
                        loader: require.resolve('eslint-loader'),
                    },
                ],
                include: [
                    path.resolve(__dirname, "../../app")
                ],
                exclude: [
                    path.resolve(__dirname, "../../node_modules")
                ],
            }
        ]
    },
    /*设置api转发*/
    devServer: {
        host: '0.0.0.0',
        port: 8080,
        hot: true,
        inline: true,
        contentBase: path.resolve(webpackFile.devDirectory),
        historyApiFallback: true,
        disableHostCheck: true,
        proxy: [
            {
                context: ['/api/**', '/u/**'],
                target: 'http://10.8.200.69:8080/',
                secure: false
            }
        ],
        /*打开浏览器 并打开本项目网址*/
        after() {
            opn('http://localhost:' + this.port);
        }
    }
});
module.exports = config;

webpack.prod.conf.js

const path = require('path');
const merge = require('webpack-merge');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const OptimizeCSSPlugin = require('optimize-css-assets-webpack-plugin');
const ExtractTextPlugin = require("extract-text-webpack-plugin");
const baseWebpackConfig = require("./webpack.base.conf");
const webpackFile = require('./webpack.file.conf');
const entry = require("./webpack.entry.conf");
const webpackCom = require("./webpack.com.conf");

let config = merge(baseWebpackConfig, {
    /*设置生产环境*/
    mode: 'production',
    output: {
        path: path.resolve(webpackFile.proDirectory),
        filename: 'js/[name].[chunkhash:8].js',
        chunkFilename: "js/[name]-[id].[chunkhash:8].js",
    },
    optimization: {
        //包清单
        runtimeChunk: {
            name: "manifest"
        },
        //拆分公共包
        splitChunks: {
            cacheGroups: {
                common: { //项目公共组件
                    chunks: "initial",
                    name: "common",
                    minChunks: 2,
                    maxInitialRequests: 5,
                    minSize: 0
                },
                vendor: {   //第三方组件
                    test: /node_modules/,
                    chunks: "initial",
                    name: "vendor",
                    priority: 10,
                    enforce: true
                }
            }
        }
    },
    plugins: [
        // extract css into its own file
        new ExtractTextPlugin('css/[name].[md5:contenthash:hex:8].css'),
        // Compress extracted CSS. We are using this plugin so that possible
        // duplicated CSS from different components can be deduped.
        new OptimizeCSSPlugin({
            assetNameRegExp: /\.css$/g,
            cssProcessor: require('cssnano'),
            cssProcessorOptions: {
                discardComments: {removeAll: true},
                // 避免 cssnano 重新计算 z-index
                safe: true
            },
            canPrint: true
        }),
    ],
    module: {
        rules: [
            {
                test: /\.(js|jsx)$/,
                use: [
                    'babel-loader',
                ],
            },
            {
                test: /\.(js|jsx)$/,
                loader: 'babel-loader',
                exclude: /node_modules/,
            },
            {
                test: /\.(css|pcss)$/,
                use: ExtractTextPlugin.extract({
                    fallback: "style-loader",
                    use: "css-loader!postcss-loader"
                })
            },
            {
                test: /\.(png|jpg|gif|ttf|eot|woff|woff2|svg)$/,
                loader: 'url-loader?limit=8192&name=[name].[hash:8].[ext]&publicPath=' + webpackFile.resourcePrefix + '&outputPath=' + webpackFile.resource + '/'
            },
            {
                test: /\.swf$/,
                loader: 'file?name=js/[name].[ext]'
            }
        ]
    }
});
let pages = entry;
for (let chunkName in pages) {
    let conf = {
        filename: chunkName + '.html',
        template: 'index.html',
        inject: true,
        title: webpackCom.titleFun(chunkName,pages[chunkName][1]),
        minify: {
            removeComments: true,
            collapseWhitespace: true,
            removeAttributeQuotes: true
        },
        chunks: ['manifest', 'vendor', 'common', chunkName],
        hash: false,
        chunksSortMode: 'dependency'
    };
    config.plugins.push(new HtmlWebpackPlugin(conf));
}
/* 清除 dist */
config.plugins.push(new CleanWebpackPlugin([webpackFile.proDirectory], {root: path.resolve(__dirname, '../../'), verbose: true, dry: false}));


/* 拷贝静态资源  */
copyArr.map(function (data) {
    return config.plugins.push(data)
});


module.exports = config;

构建多界面

整体架构搭建起来之后
app -> component 

$ mkdir demo && cd demo

$ touch Index.jsx

    import React from 'react';

    class Index extends React.Component {
        render() {
            return (
                
                    写个demo
                
            );
        }
    }
    
    export default Index;

在config -> entry

module.exports = [
    {
        name: 'index',
        path: 'index/Index.jsx',
        title: '首页',
        keywords: '首页',
        description: '首页'
    },
    {
        name: 'demo',
        path: 'demo/Index.jsx',
        title: 'demo',
        keywords: 'demo',
        description: 'demo'
    },
    {
        name: 'demo1',
        path: 'demo1/Index.jsx',
        title: 'demo1',
        keywords: 'demo1',
        description: 'demo1'
    }
];

然后直接执行 npm run create-dev 就会在devBuild 和 entryBuild 中添加一个新的demo.html 和 demo.js

package.json

{
  "name": "webpack_es6",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "dev": "webpack-dev-server --devtool eval --progress --colors --profile --config config/webpack/webpack.dev.conf.js",
    "entry": "node config/entry/entryBuild.js",
    "devBuildHtml": "node config/webpack/webpack.devBuildHtml.conf.js",
    "create-dev": "npm run entry && npm run devBuildHtml",
    "build": "BABEL_ENV=production && webpack --progress --colors --config config/webpack/webpack.prod.conf.js",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "react": "^16.3.0",
    "react-dom": "^16.3.0"
  },
  "devDependencies": {
    "babel-cli": "^6.26.0",
    "babel-eslint": "^8.2.2",
    "babel-loader": "^7.1.4",
    "babel-preset-env": "^1.6.1",
    "babel-preset-react": "^6.24.1",
    "babel-preset-react-hmre": "^1.1.1",
    "cache-loader": "^1.2.2",
    "clean-webpack-plugin": "^0.1.19",
    "copy-webpack-plugin": "^4.5.1",
    "css-loader": "^0.28.11",
    "eslint": "^4.19.1",
    "eslint-config-react-app": "^2.1.0",
    "eslint-loader": "^2.0.0",
    "eslint-plugin-flowtype": "^2.46.1",
    "eslint-plugin-import": "^2.10.0",
    "eslint-plugin-jsx-a11y": "^5.1.1",
    "eslint-plugin-react": "^7.7.0",
    "extract-text-webpack-plugin": "^4.0.0-beta.0",
    "file": "^0.2.2",
    "file-loader": "^1.1.11",
    "html-webpack-plugin": "^3.1.0",
    "optimize-css-assets-webpack-plugin": "^4.0.0",
    "postcss-cssnext": "^3.1.0",
    "postcss-loader": "^2.1.3",
    "precss": "^3.1.2",
    "react-dev-utils": "^5.0.0",
    "style-loader": "^0.20.3",
    "url-loader": "^1.0.1",
    "webpack": "^4.4.1",
    "webpack-cli": "^2.0.13",
    "webpack-dev-server": "^3.1.1",
    "webpack-merge": "^4.1.2"
  },
  "eslintConfig": {
    "extends": "react-app",
    "rules": {
      "import/no-webpack-loader-syntax": 0,
      "no-script-url": 0,
      "jsx-a11y/href-no-hash": 2
    }
  }
}

开发环境小技巧

在开发环境添加cache-loader 可以提升在开发环境的编译速度

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