vue-cli3全面配置详解更新日期：2024/11/15 饿虎岗资源网

本文介绍了vue-cli3全面配置详解，分享给大家，具体如下：

vue-cli3-config

创建项目

配置环境变量

通过在package.json里的scripts配置项中添加--mode xxx来选择不同环境

在项目根目录中新建.env, .env.production, .env.analyz等文件

只有以 VUE_APP_ 开头的变量会被 webpack.DefinePlugin 静态嵌入到客户端侧的包中，代码中可以通过process.env.VUE_APP_BASE_API访问

NODE_ENV 和 BASE_URL 是两个特殊变量，在代码中始终可用

.env serve默认的环境变量

NODE_ENV = 'development'
VUE_APP_BASE_API = 'https://demo.cn/api'
VUE_APP_SRC = 'https://wechat-timg.oss-cn-hangzhou.aliyuncs.com/demo'

.env.production build默认的环境变量

NODE_ENV = 'production'

VUE_APP_BASE_API = 'https://demo.com/api'
VUE_APP_SRC = 'https://img-wechat.oss-cn-hangzhou.aliyuncs.com/demo'

.env.analyz 用于webpack-bundle-analyzer打包分析

NODE_ENV = 'production'
IS_ANALYZ = 'analyz'

VUE_APP_BASE_API = 'https://demo.com/api'
VUE_APP_SRC = 'https://img-wechat.oss-cn-hangzhou.aliyuncs.com/demo'

修改package.json

"scripts": {
 "serve": "vue-cli-service serve",
 "build": "vue-cli-service build",
 "analyz": "vue-cli-service build --mode analyz",
 "lint": "vue-cli-service lint"
}

配置vue.config.js

const IS_PROD = ['production', 'prod'].includes(process.env.NODE_ENV);

module.exports = {
 baseUrl: './', // 默认'/'，部署应用包时的基本 URL
 outputDir: process.env.outputDir || 'dist', // 'dist', 生产环境构建文件的目录
 assetsDir: '', // 相对于outputDir的静态资源(js、css、img、fonts)目录
 lintOnSave: false,
 runtimeCompiler: true, // 是否使用包含运行时编译器的 Vue 构建版本
 productionSourceMap: false, // 生产环境的 source map
 parallel: require('os').cpus().length > 1,
 pwa: {}
};

配置proxy跨域

const IS_PROD = ['production', 'prod'].includes(process.env.NODE_ENV);
module.exports = {
  devServer: {
    // overlay: {
    //  warnings: true,
    //  errors: true
    // },
    open: IS_PROD,
    host: '0.0.0.0',
    port: 8000,
    https: false,
    hotOnly: false,
    proxy: {
     '/api': {
      target: process.env.VUE_APP_BASE_API || 'http://127.0.0.1:8080',
      changeOrigin: true
     }
    }
  }
}

修复HMR(热更新)失效

module.exports = {
  chainWebpack: config => {
    // 修复HMR
    config.resolve.symlinks(true);
  }
}

添加别名

const path = require('path');
const resolve = (dir) => path.join(__dirname, dir);
const IS_PROD = ['production', 'prod'].includes(process.env.NODE_ENV);

module.exports = {
  chainWebpack: config => {
    // 添加别名
    config.resolve.alias
     .set('@', resolve('src'))
     .set('assets', resolve('src/assets'))
     .set('components', resolve('src/components'))
     .set('layout', resolve('src/layout'))
     .set('base', resolve('src/base'))
     .set('static', resolve('src/static'));
  }
}

添加打包分析

const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;

module.exports = {
  chainWebpack: config => {
    // 打包分析
    if (process.env.IS_ANALYZ) {
     config.plugin('webpack-report')
      .use(BundleAnalyzerPlugin, [{
       analyzerMode: 'static',
      }]);
    }
  }
}

配置externals

防止将某些 import 的包(package)打包到 bundle 中，而是在运行时(runtime)再去从外部获取这些扩展依赖

module.exports = {
  configureWebpack: config => {
    config.externals = {
     'vue': 'Vue',
     'element-ui': 'ELEMENT',
     'vue-router': 'VueRouter',
     'vuex': 'Vuex',
     'axios': 'axios'
    }
  }
}

去掉console.log

方法一：

const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
module.exports = {
  configureWebpack: config => {
    if (IS_PROD) {
      const plugins = [];
      plugins.push(
        new UglifyJsPlugin({
          uglifyOptions: {
            compress: {
              warnings: false,
              drop_console: true,
              drop_debugger: false,
              pure_funcs: ['console.log']//移除console
            }
          },
          sourceMap: false,
          parallel: true
        })
      );
      config.plugins = [
        ...config.plugins,
        ...plugins
      ];
    }
  }
}

方法二：使用babel-plugin-transform-remove-console插件

npm i --save-dev babel-plugin-transform-remove-console

在babel.config.js中配置

const plugins = [];
if(['production', 'prod'].includes(process.env.NODE_ENV)) { 
 plugins.push("transform-remove-console")
}

module.exports = {
 presets: [["@vue/app",{"useBuiltIns": "entry"}]],
 plugins: plugins
};

开启gzip压缩

npm i --save-dev compression-webpack-plugin

const CompressionWebpackPlugin = require('compression-webpack-plugin');
const productionGzipExtensions = /\.(js|css|json|txt|html|ico|svg)(\"_blank" href="https://webpack.js.org/plugins/compression-webpack-plugin" rel="external nofollow" >https://webpack.js.org/plugins/compression-webpack-plugin


npm i --save-dev @gfx/zopfli brotli-webpack-plugin




const CompressionWebpackPlugin = require('compression-webpack-plugin');
const zopfli = require("@gfx/zopfli");
const BrotliPlugin = require("brotli-webpack-plugin");
const productionGzipExtensions = /\.(js|css|json|txt|html|ico|svg)(\"htmlcode">

module.exports = {
  css: {
    modules: false,
    extract: IS_PROD,
    sourceMap: false,
    loaderOptions: {
     sass: {
      // 向全局sass样式传入共享的全局变量
      data: `@import "~assets/scss/variables.scss";$src: "${process.env.VUE_APP_SRC}";`
     }
    }
  }
}



在scss中引用


.home {
  background: url($src + '/images/500.png');
}



添加IE兼容




npm i --save @babel/polyfill



在main.js中添加


import '@babel/polyfill';


配置babel.config.js


const plugins = [];

module.exports = {
 presets: [["@vue/app",{"useBuiltIns": "entry"}]],
 plugins: plugins
};




完整配置


安装依赖


复制代码 代码如下:npm i --save-dev compression-webpack-plugin babel-plugin-transform-remove-console @gfx/zopfli brotli-webpack-plugin
package.json




"scripts": {
  "serve": "vue-cli-service serve",
  "build": "vue-cli-service build",
  "analyz": "vue-cli-service build --mode analyz",
  "lint": "vue-cli-service lint"
}



babel.config.js




const plugins = [];
// if(['production', 'prod'].includes(process.env.NODE_ENV)) { 
//  plugins.push("transform-remove-console")
// }

module.exports = {
 presets: [["@vue/app",{"useBuiltIns": "entry"}]],
 plugins: plugins
};
vue.config.js
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
const CompressionWebpackPlugin = require('compression-webpack-plugin');
// const zopfli = require("@gfx/zopfli");
// const BrotliPlugin = require("brotli-webpack-plugin");

const path = require('path');
const resolve = (dir) => path.join(__dirname, dir);
const IS_PROD = ['production', 'prod'].includes(process.env.NODE_ENV);
const productionGzipExtensions = /\.(js|css|json|txt|html|ico|svg)(\"~assets/scss/variables.scss";$src: "${process.env.VUE_APP_SRC}";`
        data: `$src: "${process.env.VUE_APP_SRC}";`
      },
      // px转换为rem
      // postcss: {
      //  plugins: [
      //   require('postcss-pxtorem')({
      //    rootValue : 1, // 换算的基数
      //    selectorBlackList : ['weui', 'el'], // 忽略转换正则匹配项
      //    propList  : ['*']
      //   })
      //  ]
      // }
    }
  },
  pluginOptions: {
    // 安装vue-cli-plugin-style-resources-loader插件
    // 添加全局样式global.scss
    // "style-resources-loader": {
    //  preProcessor: "scss",
    //  patterns: [
    //   resolve(__dirname, "./src/scss/scss/variables.scss")
    //  ]
    // }
  },
  parallel: require('os').cpus().length > 1,
  pwa: {},
  devServer: {
    // overlay: {
    //  warnings: true,
    //  errors: true
    // },
    open: IS_PROD,
    host: '0.0.0.0',
    port: 8000,
    https: false,
    hotOnly: false,
    proxy: {
      '/api': {
        target: process.env.VUE_APP_BASE_API || 'http://127.0.0.1:8080',
        changeOrigin: true
      }
    }
  }
};


以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。

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