一份关于vue-cli3项目常用项配置

作者: Fuoca 发布于 2020-08-26 更新于 2020-08-30 字数统计 11876字 阅读时长 ≈ 39分35秒
  1. 配置全局cdn,包含js、css
  2. 开启Gzip压缩,包含文件js、css
  3. 去掉注释、去掉console.log
  4. 压缩图片
  5. 本地代理
  6. 设置别名,vscode也能识别
  7. 配置环境变量开发模式、测试模式、生产模式
  8. 请求路由动态添加
  9. axios配置
  10. 添加mock数据
  11. 配置全局less
  12. 只打包改变的文件
  13. 开启分析打包日志

vue.config.js

完整的架构配置

const path = require('path');
const UglifyJsPlugin = require('uglifyjs-webpack-plugin') // 去掉注释
const CompressionWebpackPlugin = require('compression-webpack-plugin'); // 开启压缩
const { HashedModuleIdsPlugin } = require('webpack');

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

const isProduction = process.env.NODE_ENV === 'production';

// cdn预加载使用
const externals = {
    'vue': 'Vue',
    'vue-router': 'VueRouter',
    'vuex': 'Vuex',
    'axios': 'axios',
    "element-ui": "ELEMENT"
}

const cdn = {
    // 开发环境
    dev: {
        css: [
            'https://unpkg.com/element-ui/lib/theme-chalk/index.css'
        ],
        js: []
    },
    // 生产环境
    build: {
        css: [
            'https://unpkg.com/element-ui/lib/theme-chalk/index.css'
        ],
        js: [
            'https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.min.js',
            'https://cdn.jsdelivr.net/npm/vue-router@3.0.1/dist/vue-router.min.js',
            'https://cdn.jsdelivr.net/npm/vuex@3.0.1/dist/vuex.min.js',
            'https://cdn.jsdelivr.net/npm/axios@0.18.0/dist/axios.min.js',
            'https://unpkg.com/element-ui/lib/index.js'
        ]
    }
}

module.exports = {

    lintOnSave: false, // 关闭eslint
    productionSourceMap: false,
    publicPath: './', 
    outputDir: process.env.outputDir, // 生成文件的目录名称
    chainWebpack: config => {

        config.resolve.alias
            .set('@', resolve('src'))

        // 压缩图片
        config.module
            .rule('images')
            .test(/\.(png|jpe?g|gif|svg)(\?.*)?$/)
            .use('image-webpack-loader')
            .loader('image-webpack-loader')
            .options({ bypassOnDebug: true })

        // webpack 会默认给commonChunk打进chunk-vendors,所以需要对webpack的配置进行delete
        config.optimization.delete('splitChunks')

        config.plugin('html').tap(args => {
            if (process.env.NODE_ENV === 'production') {
                args[0].cdn = cdn.build
            }
            if (process.env.NODE_ENV === 'development') {
                args[0].cdn = cdn.dev
            }
            return args
        })
        
        config
            .plugin('webpack-bundle-analyzer')
            .use(require('webpack-bundle-analyzer').BundleAnalyzerPlugin)
    },

    configureWebpack: config => {
        const plugins = [];

        if (isProduction) {
            plugins.push(
                new UglifyJsPlugin({
                    uglifyOptions: {
                        output: {
                            comments: false, // 去掉注释
                        },
                        warnings: false,
                        compress: {
                            drop_console: true,
                            drop_debugger: false,
                            pure_funcs: ['console.log']//移除console
                        }
                    }
                })
            )
            // 服务器也要相应开启gzip
            plugins.push(
                new CompressionWebpackPlugin({
                    algorithm: 'gzip',
                    test: /\.(js|css)$/,// 匹配文件名
                    threshold: 10000, // 对超过10k的数据压缩
                    deleteOriginalAssets: false, // 不删除源文件
                    minRatio: 0.8 // 压缩比
                })
            )

            // 用于根据模块的相对路径生成 hash 作为模块 id, 一般用于生产环境
            plugins.push(
                new HashedModuleIdsPlugin()
            )

            // 开启分离js
            config.optimization = {
                runtimeChunk: 'single',
                splitChunks: {
                    chunks: 'all',
                    maxInitialRequests: Infinity,
                    minSize: 1000 * 60,
                    cacheGroups: {
                        vendor: {
                            test: /[\\/]node_modules[\\/]/,
                            name(module) {
                                // 排除node_modules 然后吧 @ 替换为空 ,考虑到服务器的兼容
                                const packageName = module.context.match(/[\\/]node_modules[\\/](.*?)([\\/]|$)/)[1]
                                return `npm.${packageName.replace('@', '')}`
                            }
                        }
                    }
                }
            };

            // 取消webpack警告的性能提示
            config.performance = {
                hints: 'warning',
                //入口起点的最大体积
                maxEntrypointSize: 1000 * 500,
                //生成文件的最大体积
                maxAssetSize: 1000 * 1000,
                //只给出 js 文件的性能提示
                assetFilter: function (assetFilename) {
                    return assetFilename.endsWith('.js');
                }
            }

            // 打包时npm包转CDN
            config.externals = externals;
        }

        return { plugins }
    },

    pluginOptions: {
        // 配置全局less
        'style-resources-loader': {
            preProcessor: 'less',
            patterns: [resolve('./src/style/theme.less')]
        }
    },
    devServer: {
        open: false, // 自动启动浏览器
        host: '0.0.0.0', // localhost
        port: 6060, // 端口号
        https: false,
        hotOnly: false, // 热更新
        proxy: {
            '^/sso': {
                target: process.env.VUE_APP_SSO, // 重写路径
                ws: true,   //开启WebSocket
                secure: false,      // 如果是https接口,需要配置这个参数
                changeOrigin: true
            }
        }
    }
}

html模板配置cdn

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <link rel="icon" href="<%= BASE_URL %>favicon.ico">
    <title><%= htmlWebpackPlugin.options.title %></title>
    <% for (var i in
        htmlWebpackPlugin.options.cdn && htmlWebpackPlugin.options.cdn.css) { %>
    <link href="<%= htmlWebpackPlugin.options.cdn.css[i] %>" rel="preload" as="style" />
    <link href="<%= htmlWebpackPlugin.options.cdn.css[i] %>" rel="stylesheet" />
    <% } %>
</head>

<body>
    <noscript>
        <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled.
            Please enable it to continue.</strong>
    </noscript>
    <div id="app"></div>
    <!-- built files will be auto injected -->
    <% for (var i in
        htmlWebpackPlugin.options.cdn && htmlWebpackPlugin.options.cdn.js) { %>
    <script src="<%= htmlWebpackPlugin.options.cdn.js[i] %>"></script>
    <% } %>
</body>
</html>

开启Gzip压缩,包含文件js、css

new CompressionWebpackPlugin({
      algorithm: 'gzip',
      test: /\.(js|css)$/, // 匹配文件名
      threshold: 10000, // 对超过10k的数据压缩
      deleteOriginalAssets: false, // 不删除源文件
      minRatio: 0.8 // 压缩比
})

去掉注释、去掉console.log

安装cnpm i uglifyjs-webpack-plugin -D

const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
new UglifyJsPlugin({
    uglifyOptions: {
        output: {
            comments: false, // 去掉注释
        },
        warnings: false,
        compress: {
            drop_console: true,
            drop_debugger: false,
            pure_funcs: ['console.log'] //移除console
        }
    }
})

压缩图片

chainWebpack: config => {
    // 压缩图片
    config.module
        .rule('images')
        .test(/\.(png|jpe?g|gif|svg)(\?.*)?$/)
        .use('image-webpack-loader')
        .loader('image-webpack-loader')
        .options({ bypassOnDebug: true })

}

本地代理

devServer: {
    open: false, // 自动启动浏览器
    host: '0.0.0.0', // localhost
    port: 6060, // 端口号
    https: false,
    hotOnly: false, // 热更新
    proxy: {
        '^/sso': {
            target: process.env.VUE_APP_SSO, // 重写路径
            ws: true, //开启WebSocket
            secure: false, // 如果是https接口,需要配置这个参数
            changeOrigin: true
        }
    }
}

设置vscode 识别别名

在vscode中插件安装栏搜索 Path Intellisense 插件,打开settings.json文件添加 以下代码 "@": "${workspaceRoot}/src",安以下添加

{
    "workbench.iconTheme": "material-icon-theme",
    "editor.fontSize": 16,
    "editor.detectIndentation": false,
    "guides.enabled": false,
    "workbench.colorTheme": "Monokai",
    "path-intellisense.mappings": {
        "@": "${workspaceRoot}/src"
    }
}

在项目package.json所在同级目录下创建文件jsconfig.json

{
    "compilerOptions": {
        "target": "ES6",
        "module": "commonjs",
        "allowSyntheticDefaultImports": true,
        "baseUrl": "./",
        "paths": {
          "@/*": ["src/*"]
        }
    },
    "exclude": [
        "node_modules"
    ]
}

如果还没请客官移步在vscode中使用别名@按住ctrl也能跳转对应路径

配置环境变量开发模式、测试模式、生产模式

在根目录新建

.env.development

# 开发环境
NODE_ENV='development'

VUE_APP_SSO='http://http://localhost:9080'

.env.test

NODE_ENV = 'production' # 如果我们在.env.test文件中把NODE_ENV设置为test的话,那么打包出来的目录结构是有差异的
VUE_APP_MODE = 'test'
VUE_APP_SSO='http://http://localhost:9080'
outputDir = test

.env.production

NODE_ENV = 'production'

VUE_APP_SSO='http://http://localhost:9080'

package.json

"scripts": {
    "build": "vue-cli-service build", //生产打包
    "lint": "vue-cli-service lint",
    "dev": "vue-cli-service serve", // 开发模式
    "test": "vue-cli-service build --mode test", // 测试打包
    "publish": "vue-cli-service build && vue-cli-service build --mode test" // 测试和生产一起打包
 }

请求路由动态添加

router/index.js文件

import Vue from 'vue';
import VueRouter from 'vue-router'
Vue.use(VueRouter)

import defaultRouter from './defaultRouter'
import dynamicRouter from './dynamicRouter';

import store from '@/store';

const router = new VueRouter({
    routes: defaultRouter,
    mode: 'hash',
    scrollBehavior(to, from, savedPosition) {
        // keep-alive 返回缓存页面后记录浏览位置
        if (savedPosition && to.meta.keepAlive) {
            return savedPosition;
        }
        // 异步滚动操作
        return new Promise((resolve, reject) => {
            setTimeout(() => {
                resolve({ x: 0, y: 0 })
            }, 200)
        })
    }
})

// 消除路由重复警告
const selfaddRoutes = function (params) {
    router.matcher = new VueRouter().matcher;
    router.addRoutes(params);
}

// 全局路由拦截
router.beforeEach((to, from, next) => {
    const { hasRoute } = store.state; // 防止路由重复添加
    if (hasRoute) {
        next()
    } else {
        dynamicRouter(to, from, next, selfaddRoutes)
    }
})

export default router;

dynamicRouter.js

import http from '@/http/request';
import defaultRouter from './defaultRouter'
import store from '@/store'

// 重新构建路由对象
const menusMap = function (menu) {
    return menu.map(v => {
        const { path, name, component } = v
        const item = {
            path,
            name,
            component: () => import(`@/${component}`)
        }
        return item;
    })
}


// 获取路由
const addPostRouter = function (to, from, next, selfaddRoutes) {
    http.windPost('/mock/menu') // 发起请求获取路由
        .then(menu => {
            defaultRouter[0].children.push(...menusMap(menu));
            selfaddRoutes(defaultRouter);
            store.commit('hasRoute', true);
            next({ ...to, replace: true })
        })
}

export default addPostRouter;

defaultRouter.js 默认路由

const main = r => require.ensure([], () => r(require('@/layout/main.vue')), 'main')
const index = r => require.ensure([], () => r(require('@/view/index/index.vue')), 'index')
const about = r => require.ensure([], () => r(require('@/view/about/about.vue')), 'about')
const detail = r => require.ensure([], () => r(require('@/view/detail/detail.vue')), 'detail')
const error = r => require.ensure([], () => r(require('@/view/404/404.vue')), 'error');
const defaultRouter = [
    {
        path: "/", 
        component: main, // 布局页
        redirect: {
            name: "index"
        },
        children:[
            {
                path: '/index',
                component: index,
                name: 'index',
                meta: {
                    title: 'index'
                }
            },
            {
                path: '/about',
                component: about,
                name: 'about',
                meta: {
                    title: 'about'
                }
            },
            {
                path: '/detail',
                component: detail,
                name: 'detail',
                meta: {
                    title: 'detail'
                }
            }
        ]
    },
    {
        path: '/404',
        component: error,
        name: '404',
        meta: {
            title: '404'
        }
    }
]
export default defaultRouter;

axios配置

import axios from "axios";
import merge from 'lodash/merge'
import qs from 'qs'

/**
 * 实例化
 * config是库的默认值,然后是实例的 defaults 属性,最后是请求设置的 config 参数。后者将优先于前者
 */
const http = axios.create({
    timeout: 1000 * 30,
    withCredentials: true, // 表示跨域请求时是否需要使用凭证
});

/**
 * 请求拦截
 */
http.interceptors.request.use(function (config) {
    return config;
}, function (error) {
    return Promise.reject(error);
});


/**
 * 响应拦截
 */
http.interceptors.response.use(response => {
    // 过期之类的操作
    if (response.data && (response.data.code === 401)) {
        // window.location.href = ''; 重定向
    }
    return response
}, error => {
    return Promise.reject(error)
})


/**
 * 请求地址处理
 */
http.adornUrl = (url) => {
    return url;
}

/**
 * get请求参数处理
 * params 参数对象
 * openDefultParams 是否开启默认参数
 */
http.adornParams = (params = {}, openDefultParams = true) => {
    var defaults = {
        t: new Date().getTime()
    }
    return openDefultParams ? merge(defaults, params) : params
}


/**
 * post请求数据处理
 * @param {*} data 数据对象
 * @param {*} openDefultdata 是否开启默认数据?
 * @param {*} contentType 数据格式
 *  json: 'application/json; charset=utf-8'
 *  form: 'application/x-www-form-urlencoded; charset=utf-8'
 */
http.adornData = (data = {}, openDefultdata = true, contentType = 'json') => {
    var defaults = {
        t: new Date().getTime()
    }
    data = openDefultdata ? merge(defaults, data) : data
    return contentType === 'json' ? JSON.stringify(data) : qs.stringify(data)
}


/**
 * windPost请求
 * @param {String} url [请求地址]
 * @param {Object} params [请求携带参数]
 */
http.windPost = function (url, params) {
    return new Promise((resolve, reject) => {
        http.post(http.adornUrl(url), qs.stringify(params))
            .then(res => {
                resolve(res.data)
            })
            .catch(error => {
                reject(error)
            })
    })
}


/**
 * windJsonPost请求
 * @param {String} url [请求地址]
 * @param {Object} params [请求携带参数]
 */
http.windJsonPost = function (url, params) {
    return new Promise((resolve, reject) => {
        http.post(http.adornUrl(url), http.adornParams(params))
            .then(res => {
                resolve(res.data)
            })
            .catch(error => {
                reject(error)
            })
    })
}


/**
 * windGet请求
 * @param {String} url [请求地址]
 * @param {Object} params [请求携带参数]
 */
http.windGet = function (url, params) {
    return new Promise((resolve, reject) => {
        http.get(http.adornUrl(url), { params: params })
            .then(res => {
                resolve(res.data)
            })
            .catch(error => {
                reject(error)
            })
    })
}

/**
 * 上传图片
 */
http.upLoadPhoto = function (url, params, callback) {
    let config = {}
    if (callback !== null) {
        config = {
            onUploadProgress: function (progressEvent) {
                //属性lengthComputable主要表明总共需要完成的工作量和已经完成的工作是否可以被测量
                //如果lengthComputable为false,就获取不到progressEvent.total和progressEvent.loaded
                callback(progressEvent)
            }
        }
    }
    return new Promise((resolve, reject) => {
        http.post(http.adornUrl(url), http.adornParams(params), config)
            .then(res => {
                resolve(res.data)
            })
            .catch(error => {
                reject(error)
            })
    })
}
export default http;

添加mock数据

const Mock = require('mockjs')

// 获取 mock.Random 对象
const Random = Mock.Random
// mock新闻数据,包括新闻标题title、内容content、创建时间createdTime
const produceNewsData = function () {
    let newsList = []
    for (let i = 0; i < 3; i++) {
        let newNewsObject = {}
        if(i === 0){
            newNewsObject.path = '/add/article';
            newNewsObject.name  = 'add-article';
            newNewsObject.component = 'modules/add/article/article';
        }
        if(i === 1){
            newNewsObject.path = '/detail/article';
            newNewsObject.name  = 'detail-article';
            newNewsObject.component = 'modules/detail/article/article'
        }
        if(i === 2){
            newNewsObject.path = '/edit/article';
            newNewsObject.name  = 'edit-article';
            newNewsObject.component = 'modules/edit/article/article'
        }
        newsList.push(newNewsObject)
    }
    return newsList;
}
Mock.mock('/mock/menu', produceNewsData)

配置全局less

pluginOptions: {
    // 配置全局less
    'style-resources-loader': {
        preProcessor: 'less',
        patterns: [resolve('./src/style/theme.less')]
    }
}

只打包改变的文件

安装cnpm i webpack -D

const { HashedModuleIdsPlugin } = require('webpack');
configureWebpack: config => {    
    const plugins = [];
    plugins.push(
        new HashedModuleIdsPlugin()
    )
}

开启分析打包日志

安装cnpm i webpack-bundle-analyzer -D

chainWebpack: config => {
    config
        .plugin('webpack-bundle-analyzer')
        .use(require('webpack-bundle-analyzer').BundleAnalyzerPlugin)
}

完整代码

原作者姓名:羊先生
原出处:segmentfault
原文链接:一份关于vue-cli3项目常用项配置 - vipbic - SegmentFault 思否

来源:FuocaのBlog,欢迎分享,欢迎评论,( QQ:3283906509 )
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