项目优化过程需要使用到的插件

xtravel-pc-v1

erp PC 前端项目

依赖安装

npm install element-ui --save

借助 babel-plugin-component，我们可以只引入需要的组件，以达到减小项目体积的目的

npm install babel-plugin-component -dev
npm install vuex --save

预编译语言

npm install sass --save
npm install css-loader --save
npm install sass-loader node-sass --save

表达验证依赖

npm install async-validator --save

ajax 依赖

npm install axios --save

token 解析插件

npm install jsonwebtoken --save

解决 ie 对 Promise（es6 语法）兼容问题，/ 在 main.js 文件夹中引入 /

npm install es6-promise --save

如果 chromedriver 安装出现问题，可以考虑使用如下命名

npm install --chromedriver_cdnurl=http://cdn.npm.taobao.org/dist/chromedriver

storage 工具插件

npm install vue2-storage --save

加密解密依赖

npm install crypto-js --save

时间操作工具

npm install moment --save

图表

npm install echarts --save

金额工具

npm install numeral --save

vue-loader

• vue-loader在项目创建时会自动安装这个依赖，但是要注意版本要在“14.2.4”以上（包括“14.2.4”）

webpack-merge

解决线上打包图片的问题

npm install webpack-merge --save

vue-infinite-scroll

无限滚动组件

npm install vue-infinite-scroll --save

webpack-bundle-analyzer

项目优化报告插件

npm install webpack-bundle-analyzer --save-dev

生成报告

image-webpack-loader

图片压缩

npm install image-webpack-loader --save

compression-webpack-plugin

代码压缩

npm install compression-webpack-plugin --save-dev

webpack-uglify-harmony-plugin

js代码压缩

npm install webpack-uglify-harmony-plugin --save

mini-css-extract-plugin

css 代码分离

npm install mini-css-extract-plugin --save

html-webpack-plugin

html 代码压缩

npm install html-webpack-plugin --save

optimize-css-assets-webpack-plugin

css 压缩

npm install optimize-css-assets-webpack-plugin --save-dev

babel-plugin-component

局部组件加载

npm i babel-plugin-component --save

prerender-spa-plugin

预渲染

npm i -D prerender-spa-plugin

babel-plugin-transform-remove-console

去除 console.log

npm i --D babel-plugin-transform-remove-console

出掉多余的css

npm i -D glob-all purgecss-webpack-plugin

Build Setup

bash
# install dependencies
npm install

# serve with hot reload at localhost:8080
npm run dev

# build for production with minification
npm run build

# build for production and view the bundle analyzer report
npm run build --report

# run unit tests
npm run unit

# run e2e tests
npm run e2e

# run all tests
npm test

示例 demo 查看说明

1. 组件说明和描述

portal->component-description.md 

1. 组件demo地址：

frame -> demo -> demoComponent.vue
              -> demoForm.vue
              -> invoiceAdd.vue
              -> invoiceList.vue 

1. 全局公用样式查看

vue.config.js

const webpack = require('webpack')
const merge = require('webpack-merge') // base64
const APP_NAME = require('./package.json').name //项目名称
const InsertScriptPlugin = require('./scripts/InsertScriptWebpackPlugin') //插入脚本插件
const PROXY = require('./config/proxy') //子项目url代理配置文件
const modules = require('./config/modules') //要加载的子项目配置文件
const path = require('path')
// 优化插件
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin
const CompressionWebpackPlugin = require('compression-webpack-plugin')
const glob = require("glob-all");
const PurgecssPlugin = require("purgecss-webpack-plugin");

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

module.exports = {
  publicPath: './',
  
  productionSourceMap: false, // 是否开启 cssSourceMap, TODO??? [xsw] 打包应该设置未false???

  /**
   * Type: Object
   * 所有webpack-dev-server的选项都支持
   * 有些值像host、port和https可能会被命令行参数覆写
   * 有些像publicPath和historyApiFallback不应该被修改，因为它们需要和开发服务器的baseUrl同步以保障正常工作
   */
  devServer: {
    port: 18080, //项目端口
    proxy: PROXY, //这会告诉服务器将任何未知请求 (没有匹配到静态文件的请求) 代理到PROXY中配置的url
    disableHostCheck: true, //关闭host检测(配置了这个才可以通过域名访问)
    compress: true, // 代码压缩
  },

  /**
   *  配置Webpack其他选项
   *  警告
      有些 webpack 选项是基于 vue.config.js 中的值设置的，所以不能直接修改。例如你应该修改 vue.config.js 中的 outputDir 选项而不是修改 output.path；你应该修改 vue.config.js 中的 baseUrl 选项而不是修改 output.publicPath。这样做是因为 vue.config.js 中的值会被用在配置里的多个地方，以确保所有的部分都能正常工作在一起。
   */

  configureWebpack: {
    //这里必须引入vue
    externals: {
      vue: 'Vue',
    },
    // 分离 插件
    optimization: {
      minimizer: true,
      splitChunks: {
        chunks: 'async',
        minSize: 3000,
        maxSize: 0,
        minChunks: 1,
        maxAsyncRequests: 5,
        maxInitialRequests: 10,
        automaticNameDelimiter: '~',
        name: true,
        cacheGroups: {
          libs: {
            name: "chunk-libs",
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: "initial"
          },
          elementUI: {
            name: "chunk-elementUI",
            priority: 20,
            test: /[\\/]node_modules[\\/]element-ui[\\/]/,
            chunks: "all"
          },
          echarts: {
            name: "chunk-echarts",
            priority: 30,
            test: /[\\/]node_modules[\\/]echarts[\\/]/,
            chunks: "all"
          },
          ckeditor: {
            name: "chunk-ckeditor",
            priority: 40,
            test: /[\\/]node_modules[\\/]@ckeditor[\\/]ckeditor5-build-classic[\\/]build[\\/]/,
            chunks: "all"
          },
          styles: {
            name: 'styles',
            test: /\.(sa|sc|c)ss$/,
            chunks: 'initial',
            enforce: true,
          },
          moment: {
            name: "chunk-moment",
            priority: 50,
            test: /[\\/]node_modules[\\/]moment[\\/]/,
            chunks: "all"
          },
          zrender: {
            name: "chunk-zrender",
            priority: 60,
            test: /[\\/]node_modules[\\/]zrender[\\/]/,
            chunks: "all"
          },
          main: {
            name: "chunk-main",
            priority: 70,
            test: /[\\/]src[\\/]main[\.]js/,
            chunks: "all"
          }
        }
      }
    },
    plugins: [
      new webpack.DefinePlugin({
        'XM.MN': JSON.stringify(APP_NAME),
      }),
      new InsertScriptPlugin({ files: modules }),
      // 启动 report 
      new BundleAnalyzerPlugin({
        generateStatsFile: true,
        statsOptions: { source: false }
      }),
      // 去除 moment 中 i18n
      new webpack.ContextReplacementPlugin(/moment[\/\\]locale$/, /zh-cn/),
      // 声明 ‘production’ 生产环境最小体积
      new webpack.DefinePlugin({
        'process.env': {
          NODE_ENV: JSON.stringify('production')
        }
      }),
      // 在代码层面上进行压缩
      new CompressionWebpackPlugin({
        algorithm: 'gzip',
        test: /\.(js|css|json|txt|html|ico|svg)(\?.*)?$/i,
        threshold: 0, // 只有大小大于该值的资源会被处理
        minRatio:0.8, // 只有压缩率小于这个值的资源才会被处理
        deleteOriginalAssets: false // 删除原文件
      }),
      // 去除 多余 css
      new PurgecssPlugin({
        paths: glob.sync([resolve("./**/*.vue")]),
        extractors: [
          {
            extractor: class Extractor {
              static extract(content) {
                const validSection = content.replace(
                  /+/gim,
                  ""
                );
                return validSection.match(/[A-Za-z0-9-_/:]*[A-Za-z0-9-_/]+/g) || []
              }
            },
            extensions: ["html", "vue"]
          }
        ],
        whitelist: ["html", "body"],
        whitelistPatterns: [/el-.*/, /-(leave|enter|appear)(|-(to|from|active))$/, /^(?!cursor-move).+-move$/, /^router-link(|-exact)-active$/],
        whitelistPatternsChildren: [/^token/, /^pre/, /^code/]
      })
    ],
  },
  chainWebpack: config => {
    //路径别名
    config.resolve.alias
      .set('@', resolve('src'))
      .set('@css', resolve('src/assets/css'))
      .set('@fonts', resolve('src/assets/fonts'))
      .set('@img', resolve('src/assets/image'))
      .set('@api', resolve('src/api'))
      .set('@bApi', resolve('src/baseApi'))
      .set('@bCps', resolve('src/baseComponents'))
      .set('@cps', resolve('src/components'))
      .set('@api', resolve('src/api'))
      .set('@page', resolve('src/pages'))

    //base64相关代码
    // 图片压缩优化 image-webpack-loader
    config.module
      .rule('images')
      .test(/\.(png|jpe?g|gif|webp)(\?.*)?$/)
      .use('image-webpack-loader')
      .loader('image-webpack-loader')
      .options({
        mozjpeg: { progressive: true, quality: 65 },
        optipng: { enabled: false },
        pngquant: { quality: "65-90", speed: 4 },
        gifsicle: { interlaced: false },
        webp: { quality: 75 }
      })
      .end()
  },

  // 要全局使用的scss 变量、Mixin在这里引入（注：这类scss文件需要每个项目都放一份,这个配置也需要每个项目都写一份）
  css: {
    loaderOptions: {
      sass: {
        data: `
        @import "@css/globalCite/defaultUrlVariable.scss";
        @import "@css/globalCite/urlVariable.scss";
        @import "@css/globalCite/variable.scss";
        @import "@css/globalCite/themeVariable.scss";
        @import "@css/globalCite/themeMixin.scss";
        `
      }
    }
  }
}