vue 改造成多页面

最近在做vue项目改造成多页面应用的优化，下面是我分享的方法

1、改造自己的项目结构
这是之前的项目结构

改造后：

在这里：
assets 和 components 文件夹不变，pages里面放我们的多页面

每个页面下必须包含的文件是 html / js / vue，是文件入口，如果该页面下包含路由，状态管理，接口请求也放在该目录下；

2、vue项目改造成多页面项目最主要的是对webpack配置的修改。
在这一步里我们需要改动的文件都在build文件下，分别是：

utils.js
webpack.base.conf.js
webpack.dev.conf.js
webpack.prod.conf.js

utils.js

// utils.js文件

var path = require('path')
var config = require('../config')
var ExtractTextPlugin = require('extract-text-webpack-plugin')

exports.assetsPath = function (_path) {
var assetsSubDirectory = process.env.NODE_ENV === 'production' ?
config.build.assetsSubDirectory :
config.dev.assetsSubDirectory
return path.posix.join(assetsSubDirectory, _path)
}

exports.cssLoaders = function (options) {
options = options || {}

var cssLoader = {
loader: 'css-loader',
options: {
minimize: process.env.NODE_ENV === 'production',
sourceMap: options.sourceMap
}
}

// generate loader string to be used with extract text plugin
function generateLoaders(loader, loaderOptions) {
var loaders = [cssLoader]
if (loader) {
loaders.push({
loader: loader + '-loader',
options: Object.assign({}, loaderOptions, {
sourceMap: options.sourceMap
})
})
}

// Extract CSS when that option is specified
// (which is the case during production build)
if (options.extract) {
return ExtractTextPlugin.extract({
use: loaders,
fallback: 'vue-style-loader'
})
} else {
return ['vue-style-loader'].concat(loaders)
}
}

// https://vue-loader.vuejs.org/en/configurations/extract-css.html
return {
css: generateLoaders(),
postcss: generateLoaders(),
less: generateLoaders('less'),
sass: generateLoaders('sass', { indentedSyntax: true }),
scss: generateLoaders('sass'),
stylus: generateLoaders('stylus'),
styl: generateLoaders('stylus')
}
}

// Generate loaders for standalone style files (outside of .vue)
exports.styleLoaders = function (options) {
var output = []
var loaders = exports.cssLoaders(options)
for (var extension in loaders) {
var loader = loaders[extension]
output.push({
test: new RegExp('\\.' + extension + '$'),
use: loader
})
}
return output
}

/* 这里是添加的部分 ---------------------------- 开始 */

// glob是webpack安装时依赖的一个第三方模块，还模块允许你使用 *等符号, 例如lib/*.js就是获取lib文件夹下的所有js后缀名的文件
var glob = require('glob')
// 页面模板
var HtmlWebpackPlugin = require('html-webpack-plugin')
// 取得相应的页面路径，因为之前的配置，所以是src文件夹下的pages文件夹
var PAGE_PATH = path.resolve(__dirname, '../src/pages')
// 用于做相应的merge处理
var merge = require('webpack-merge')


//多入口配置
// 通过glob模块读取pages文件夹下的所有对应文件夹下的js后缀文件，如果该文件存在
// 那么就作为入口处理
exports.entries = function () {
var entryFiles = glob.sync(PAGE_PATH + '/*/*.js')
var map = {}
entryFiles.forEach((filePath) => {
var filename = filePath.substring(filePath.lastIndexOf('\/') + 1, filePath.lastIndexOf('.'))
map[filename] = filePath
})
return map
}

//多页面输出配置
// 与上面的多页面入口配置相同，读取pages文件夹下的对应的html后缀文件，然后放入数组中
exports.htmlPlugin = function () {
let entryHtml = glob.sync(PAGE_PATH + '/*/*.html')
let arr = []
entryHtml.forEach((filePath) => {
let filename = filePath.substring(filePath.lastIndexOf('\/') + 1, filePath.lastIndexOf('.'))
let conf = {
// 模板来源
template: filePath,
// 文件名称
filename: filename + '.html',
// 页面模板需要加对应的js脚本，如果不加这行则每个页面都会引入所有的js脚本
chunks: ['manifest', 'vendor', filename],
inject: true
}
if (process.env.NODE_ENV === 'production') {
conf = merge(conf, {
minify: {
removeComments: true,
collapseWhitespace: true,
removeAttributeQuotes: true
},
chunksSortMode: 'dependency'
})
}
arr.push(new HtmlWebpackPlugin(conf))
})
return arr
}
/* 这里是添加的部分 ---------------------------- 结束 */
```

webpack.base.conf.js 文件

// webpack.base.conf.js 文件

var path = require('path')
var utils = require('./utils')
var config = require('../config')
var vueLoaderConfig = require('./vue-loader.conf')

function resolve(dir) {
return path.join(__dirname, '..', dir)
}

module.exports = {
/* 修改部分 ---------------- 开始 */
entry: utils.entries(),
/* 修改部分 ---------------- 结束 */
output: {
path: config.build.assetsRoot,
filename: '[name].js',
publicPath: process.env.NODE_ENV === 'production' ?
config.build.assetsPublicPath :
config.dev.assetsPublicPath
},
resolve: {
extensions: ['.js', '.vue', '.json'],
alias: {
'vue$': 'vue/dist/vue.esm.js',
'@': resolve('src'),
'pages': resolve('src/pages'),
'components': resolve('src/components')
}
},
module: {
rules: [{
test: /\.vue$/,
loader: 'vue-loader',
options: vueLoaderConfig
},
{
test: /\.js$/,
loader: 'babel-loader',
include: [resolve('src'), resolve('test')]
},
{
test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
loader: 'url-loader',
options: {
limit: 10000,
name: utils.assetsPath('img/[name].[hash:7].[ext]')
}
},
{
test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
loader: 'url-loader',
options: {
limit: 10000,
name: utils.assetsPath('fonts/[name].[hash:7].[ext]')
}
}
]
}
}


webpack.dev.conf.js 文件

var utils = require('./utils')
var webpack = require('webpack')
var config = require('../config')
var merge = require('webpack-merge')
var baseWebpackConfig = require('./webpack.base.conf')
var HtmlWebpackPlugin = require('html-webpack-plugin')
var FriendlyErrorsPlugin = require('friendly-errors-webpack-plugin')

// add hot-reload related code to entry chunks
Object.keys(baseWebpackConfig.entry).forEach(function (name) {
baseWebpackConfig.entry[name] = ['./build/dev-client'].concat(baseWebpackConfig.entry[name])
})

module.exports = merge(baseWebpackConfig, {
module: {
rules: utils.styleLoaders({ sourceMap: config.dev.cssSourceMap })
},
// cheap-module-eval-source-map is faster for development
devtool: '#cheap-module-eval-source-map',
plugins: [
new webpack.DefinePlugin({
'process.env': config.dev.env
}),
// https://github.com/glenjamin/webpack-hot-middleware#installation--usage
new webpack.HotModuleReplacementPlugin(),
new webpack.NoEmitOnErrorsPlugin(),
// https://github.com/ampedandwired/html-webpack-plugin
/* 注释这个区域的文件 ------------- 开始 */
// new HtmlWebpackPlugin({
// filename: 'index.html',
// template: 'index.html',
// inject: true
// }),
/* 注释这个区域的文件 ------------- 结束 */
new FriendlyErrorsPlugin()

/* 添加 .concat(utils.htmlPlugin()) ------------------ */
].concat(utils.htmlPlugin())
})

webpack.prod.conf.js 文件

var path = require('path')
var utils = require('./utils')
var webpack = require('webpack')
var config = require('../config')
var merge = require('webpack-merge')
var baseWebpackConfig = require('./webpack.base.conf')
var CopyWebpackPlugin = require('copy-webpack-plugin')
var HtmlWebpackPlugin = require('html-webpack-plugin')
var ExtractTextPlugin = require('extract-text-webpack-plugin')
var OptimizeCSSPlugin = require('optimize-css-assets-webpack-plugin')

var env = config.build.env

var webpackConfig = merge(baseWebpackConfig, {
module: {
rules: utils.styleLoaders({
sourceMap: config.build.productionSourceMap,
extract: true
})
},
devtool: config.build.productionSourceMap ? '#source-map' : false,
output: {
path: config.build.assetsRoot,
filename: utils.assetsPath('js/[name].[chunkhash].js'),
chunkFilename: utils.assetsPath('js/[id].[chunkhash].js')
},
plugins: [
// http://vuejs.github.io/vue-loader/en/workflow/production.html
new webpack.DefinePlugin({
'process.env': env
}),
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false
},
sourceMap: true
}),
// extract css into its own file
new ExtractTextPlugin({
filename: utils.assetsPath('css/[name].[contenthash].css')
}),
// Compress extracted CSS. We are using this plugin so that possible
// duplicated CSS from different components can be deduped.
new OptimizeCSSPlugin({
cssProcessorOptions: {
safe: true
}
}),
// generate dist index.html with correct asset hash for caching.
// you can customize output by editing /index.html
// see https://github.com/ampedandwired/html-webpack-plugin

/* 注释这个区域的内容 ---------------------- 开始 */
// new HtmlWebpackPlugin({
// filename: config.build.index,
// template: 'index.html',
// inject: true,
// minify: {
// removeComments: true,
// collapseWhitespace: true,
// removeAttributeQuotes: true
// // more options:
// // https://github.com/kangax/html-minifier#options-quick-reference
// },
// // necessary to consistently work with multiple chunks via CommonsChunkPlugin
// chunksSortMode: 'dependency'
// }),
/* 注释这个区域的内容 ---------------------- 结束 */

// split vendor js into its own file
new webpack.optimize.CommonsChunkPlugin({
name: 'vendor',
minChunks: function (module, count) {
// any required modules inside node_modules are extracted to vendor
return (
module.resource &&
/\.js$/.test(module.resource) &&
module.resource.indexOf(
path.join(__dirname, '../node_modules')
) === 0
)
}
}),
// extract webpack runtime and module manifest to its own file in order to
// prevent vendor hash from being updated whenever app bundle is updated
new webpack.optimize.CommonsChunkPlugin({
name: 'manifest',
chunks: ['vendor']
}),
// copy custom static assets
new CopyWebpackPlugin([{
from: path.resolve(__dirname, '../static'),
to: config.build.assetsSubDirectory,
ignore: ['.*']
}])
/* 该位置添加 .concat(utils.htmlPlugin()) ------------------- */
].concat(utils.htmlPlugin())
})

if (config.build.productionGzip) {
var CompressionWebpackPlugin = require('compression-webpack-plugin')

webpackConfig.plugins.push(
new CompressionWebpackPlugin({
asset: '[path].gz[query]',
algorithm: 'gzip',
test: new RegExp(
'\\.(' +
config.build.productionGzipExtensions.join('|') +
')$'
),
threshold: 10240,
minRatio: 0.8
})
)
}

if (config.build.bundleAnalyzerReport) {
var BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin
webpackConfig.plugins.push(new BundleAnalyzerPlugin())
}

module.exports = webpackConfig

至此webpack的配置就改完了，但还是有些小细节上的需要修改。
页面
.js文件里面要用render函数
比如：

import Vue from 'Vue'
import cell from './cell.vue'

/* eslint-disable no-new */
new Vue({
el: '#app',
render: h => h(cell)
})

还需要注意的是：
config文件夹下的index.js 里面的路径需要改变
build部分路径要改成 ./

dev部分：的路径

（我在这里不小心把路径给改了，run dev 打开后获取不了页面）

到这里就改造完成了，赶快打包试一下吧~~~

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