---
title: vue.config.js文件配置
date: 2021-02-03 09:26:32
permalink: /pages/f410bd/
---
# vue.config.js

::: tip
本部分提供适当所需注释，如有其它配置更改需要，请查询[Vue-Cli](https://cli.vuejs.org/zh/config)
:::

``` js
// eslint-disable-next-line @typescript-eslint/no-var-requires
const path = require('path')

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, on Mac: sudo npm run / sudo yarn
const devServerPort = 9527 // TODO: get this variable from setting.ts
const mockServerPort = 9528 // TODO: get this variable from setting.ts
const name = 'Vue Typescript Admin' // TODO: get this variable from setting.ts

module.exports = {
  // 部署应用包时的基本 URL。用法和 webpack 本身的 output.publicPath 一致，
  // 但是 Vue CLI 在一些其他地方也需要用到这个值，所以请始终使用 publicPath 而不要直接修改 webpack 的 output.publicPath
  publicPath: './',
  // 默认生成的打包文件夹路径
  outputDir: 'dist',
  // 放置生成的静态资源 (js、css、img、fonts) 的 (相对于 outputDir 的) 目录。    资源放的目录
  assetsDir: './static',
  // 指定生成的 index.html 的输出路径 (相对于 outputDir)。也可以是一个绝对路径    index的路劲和名字
  indexPath: './index.html',
  // 是否在开发环境下通过 eslint-loader 在每次保存时 lint 代码
  lintOnSave: process.env.NODE_ENV === 'development',
  // 是否需要生成环境的 source map
  productionSourceMap: false,
  // 设置开发时的端口及后端目录
  devServer: {
    // 开发环境的启动端口
    port: devServerPort,
    open: true,
    overlay: {
      warnings: false,
      errors: true
    },
    // progress: false,
    proxy: {
      '/common': {
        // 开发环境的后台请求接口
        target: 'http://127.0.0.1:8081' ,
        changeOrigin: true, // needed for virtual hosted sites
        ws: true, // proxy websockets
        pathRewrite: {
          // '^/common': ''
        }
      }
    }
  },
  // 向 PWA 插件传递选项
  pwa: {
    name: name,
    workboxPluginMode: 'InjectManifest',
    workboxOptions: {
      swSrc: path.resolve(__dirname, 'src/pwa/service-worker.js')
    }
  },
  // 这是一个不进行任何 schema 验证的对象，因此它可以用来传递任何第三方插件选项
  pluginOptions: {
    'style-resources-loader': {
      preProcessor: 'scss',
      patterns: [
        // 全局样式配置文件，加上自己的路径,不能使用(如下:alias)中配置的别名路径
        path.resolve(__dirname, 'src/styles/_variables.scss'),
        path.resolve(__dirname, 'src/styles/_mixins.scss')
      ]
    }
  },
  // 将代码公共部分集中打包，减少打包所需时间，是打包后的文件体积更小
  chainWebpack(config) {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    config.set('name', name)

    // https://webpack.js.org/configuration/devtool/#development
    // Change development env source map if you want.
    // The default in vue-cli is 'eval-cheap-module-source-map'.
    // config
    //   .when(process.env.NODE_ENV === 'development',
    //     config => config.devtool('eval-cheap-source-map')
    //   )

    config
      .when(process.env.NODE_ENV !== 'development',
        config => {
          config
            .optimization.splitChunks({
              chunks: 'all',
              cacheGroups: {
                libs: {
                  name: 'chunk-libs',
                  test: /[\\/]node_modules[\\/]/,
                  priority: 10,
                  chunks: 'initial' // only package third parties that are initially dependent
                },
                elementUI: {
                  name: 'chunk-elementUI', // split elementUI into a single package
                  priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
                  test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
                },
                commons: {
                  name: 'chunk-commons',
                  test: path.resolve(__dirname, 'src/components'),
                  minChunks: 3, //  minimum common number
                  priority: 5,
                  reuseExistingChunk: true
                }
              }
            })
          config.optimization.runtimeChunk('single')
        }
      )
  }
}

```