Home Web Front-end JS Tutorial How to build multi-page applications using webpack

How to build multi-page applications using webpack

Jun 01, 2018 am 09:23 AM
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这次给大家带来如何利用webpack构建多页面应用,利用webpack构建多页面应用的注意事项有哪些,下面就是实战案例,一起来看一下。

前言

之前使用 vue2.x + webpack3.x 撸了一个 vue 单页脚手架

vue 版 spa 脚手架

有兴趣的同学可以看下,内附详细注释,适合刚学习 webpack 的童鞋.

react 版 spa 脚手架

但在一些场景下,单页应用显然无法满足我们的需求,于是便有了

mulXc-cli

好了,废话不多说,进入正题!!!!

文件结构 

├── build            构建服务和webpack配置
 ├──── build.js         构建全量压缩包 (打包项目)
 ├──── setting.js        多页面入口配置
 ├──── style.js         页面1对1抽取生成css文件
 ├──── utils.js         工具类
 ├──── webpack.base.conf.js   webpack通用配置
 ├──── webpack.dev.conf.js    webpack开发环境配置
 ├──── webpack.prod.conf.js   webpack生产环境配置
├── config           webpack开发/生产环境部分配置
├── dist            项目打包目录
├── package.json        项目配置文件
├── src             项目目录
├──── common          多页面公用方法与css
├──── about           about页面
├──── home           home页面
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思路

多页面应用,顾名思义:就是有多个页面(废话!!!)

从 webpack 的角度来看:

1.多个入口(entry),每个页面对应一个入口,理解为 js 资源.

2.多个 html 实例,webpack 使用html-webpack-plugin 插件来生成 html 页面.

3.每个页面需要对应的 css 文件.webpack 使用 extract-text-webpack-plugin 抽取 css.

这样我们一个多页面应用该有的东西都具备了,go,开撸!!!

入口配置与 html 页面生成

通过以上文件结构,我们可以找到我们在 build/setting.js 进行了多页面入口配置与 html 页面生成。

setting.js

//node 文件操作模块
const fs = require('fs');
//node 路径模块
const path = require('path');
//使用node.js 的文件操作模块来获取src文件夹下的文件夹名称 ->[about,common,home]
const entryFiles = fs.readdirSync(path.resolve(dirname, '../src'));
//生成html文件插件
const HtmlWebpackPlugin = require('html-webpack-plugin');
//工具类提取_resolve方法
const { _resolve } = require('./utils');
//入口文件过滤common文件夹(因为common文件夹我们用来存放多页面之间公用的方法与css,所以不放入入口进行构建!)
const rFiles = entryFiles.filter(v => v != 'common');
module.exports = {
 //构建webpack入口
 entryList: () => {
  const entryList = {};
  rFiles.map(v => {
   entryList[v] = _resolve(`../src/${v}/index.js`);
  });
  return entryList;
 },
 //src文件夹下的文件夹名称 ->[about,common,home]
 entryFiles: entryFiles,
 //使用html-webpack-plugin生成多个html页面.=>[home.html,about.html]
 pageList: () => {
  const pageList = [];
  rFiles.map(v => {
   pageList.push(
    new HtmlWebpackPlugin({
     template: _resolve(`../src/${v}/index.html`),
     filename: _resolve(`../dist/${v}.html`),
     chunks: ['common', v],
     //压缩配置
     minify: {
      //删除Html注释
      removeComments: true,
      //去除空格
      collapseWhitespace: true,
      //去除属性引号
      removeAttributeQuotes: true
     },
     chunksSortMode: 'dependency'
    })
   );
  });
  return pageList;
 }
};
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webpack.base.conf.js

//引入setting.js 入口配置方法,与html生成配置
const { entryList, pageList } = require('./setting.js');
const baseConf = {
 entry: entryList(),
 plugins: [...pageList()]
};
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css 文件生成

通过以上文件结构,我们可以找到我们在 build/style.js 进行了 css 文件生成。

style.js

const path = require('path');
//抽取css文件插件
const ExtractTextPlugin = require('extract-text-webpack-plugin');
//引入入口配置
const { entryList, entryFiles } = require('./setting.js');
//多个ExtractTextPlugin实例
const plugins = [];
entryFiles.map(v => {
 plugins.push(
  new ExtractTextPlugin({
   filename: `css/${v}.[contenthash].css`,
   allChunks: false
  })
 );
});
module.exports = {
 //使用正则匹配到每个页面对应style文件夹下的css/less文件,并配置loader来进行解析.从而实现html<->css 1对1
 rulesList: () => {
  const rules = [];
  entryFiles.map((v, k) => {
   rules.push({
    test: new RegExp(`src(\\\\|\/)${v}(\\\\|\/)style(\\\\|\/).*\.(css|less)$`),
    use: plugins[k].extract({
     fallback: 'style-loader',
     use: ['css-loader', 'postcss-loader', 'less-loader']
    })
   });
  });
  return rules;
 },
 //插件实例
 stylePlugins: plugins
};
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webpack.prod.conf.js

//引入方法
const { rulesList, stylePlugins } = require('./style.js');
const prodConf = {
 module: {
  rules: [...rulesList()]
 },
 plugins: [...stylePlugins]
};
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相信看了本文案例你已经掌握了方法,更多精彩请关注php中文网其它相关文章!

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