webpack 构建 vue 开发环境

1. 必要环境 请确保已安装 

node npm webpack

2.创建一个test文件夹 

mkdir test && cd test && npm init 

3. 创建 webpack.dev.config.js

const path = require('path')
const {CleanWebpackPlugin} = require('clean-webpack-plugin') // webpack插件 清除打包文件夹下多余文件 详细配置==>(https://www.npmjs.com/package/clean-webpack-plugin)
const HtmlWebpackPlugin = require('html-webpack-plugin') // webpack插件    简化html创建 详细配置==>(https://github.com/jantimon/html-webpack-plugin)
const VueLoaderPlugin = require('vue-loader/lib/plugin') // vue-loader 插件，它的职责是将你定义过的其它规则复制并应用到 .vue 文件里相应语言的块
const webpack = require('webpack')
module.exports = {
    entry: {
        app: './main.js'
    },
    devtool: 'cheap-module-eval-source-map', // 控制如何生成 source map ==>(https://www.webpackjs.com/configuration/devtool/)
    devServer: {
        contentBase: './dist',
        hot: true
    },
    mode: 'development',
    module: { 
        rules: [
            {
                test: /.(svg)(?.*)?$/,
                use: ['file-loader']
            }, {
            test: /.css$/,
            use: ['style-loader', 'css-loader'],
        }, {
            test: /.vue$/,
            use: ['vue-loader']
        }, {
            test: /.(png|jpg|jpeg|gif)$/,
            use: [{
                loader: 'url-loader',
                options: {
                    limit: 10000,
                    name: '[name].[ext]',
                    outputPath: 'assets/img',
                    publicPath: ''
                }
            }]
        }, {
            test: /.js$/,
            use: [{
                loader: 'babel-loader',
                options: {
                    presets: ['react', 'env']
                }
            }],
            include: [
                path.resolve(__dirname, 'src')
            ]
        }, {
            test: /.(woff|woff2|eot|ttf|otf)$/,
            use: ['url-loader']
        }]
    },
    plugins: [ // 插件配置
        new CleanWebpackPlugin(),
        new HtmlWebpackPlugin({
            template: './src/index.html',
            filename: 'index.html'
        }),
        new VueLoaderPlugin(),
        new webpack.NamedModulesPlugin(),
        new webpack.HotModuleReplacementPlugin()
    ],
    output: {
        filename: '[name].js',
        path: path.resolve(__dirname, 'dist')
    },
    resolve: {
        alias: {
            'vue$': 'vue/dist/vue.esm.js',
            '@': 'src'
        }
    }
}

　4.  package.json 

{
  "name": "test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo "Error: no test specified" && exit 1",
    "start": "webpack-dev-server --config webpack.dev.config.js"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "babel-core": "^6.26.3",
    "babel-loader": "^8.2.2",
    "babel-plugin-transform-runtime": "^6.23.0",
    "babel-preset-es2015": "^6.24.1",
    "babel-preset-stage-0": "^6.24.1",
    "babel-runtime": "^6.26.0",
    "css-loader": "^5.2.4",
    "style-loader": "^2.0.0",
    "vue-hot-reload-api": "^2.3.4",
    "vue-html-loader": "^1.2.4",
    "vue-loader": "^15.7.0",
    "vue-style-loader": "^4.1.3",
    "vue-template-compiler": "^2.6.12",
    "webpack": "^4.29.6",
    "webpack-dev-server": "^3.11.2",
    "webpack-cli": "^3.2.3",
    "clean-webpack-plugin": "^4.0.0-alpha.0",
    "html-webpack-plugin": "^3.2.0",
    "url-loader": "^1.1.2",
    "file-loader": "^3.0.1"
  },
  "dependencies": {
    "iview": "^3.5.4",
    "view-design": "^4.5.0",
    "vue": "^2.6.12"
  }
}

　　

　4　创建main.js

import Vue from 'vue'
import App from './App.vue'
import ViewUI from 'view-design';
import 'view-design/dist/styles/iview.css';
Vue.use(ViewUI);
new Vue({
    el: '#app',
    components: {App},
    template: '<App />'
})

 5. 创建App.vue

<template>
  <Button>hell vue111222</Button>
</template>

<script>
import {Button} from "iview";
export default {
  components:{
    Button
  },
  data() {
    return {
      btnName: "default",
    }
  },
  mounted() {

  }
}
</script>

<style lang="css" scoped>
    /**
     * You can change the "lang" to use sass, scss, or even more.
     */
</style>

　6. 创建 index.html

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>VueJS</title>
</head>
<body>
    <div id="app"></div>
</body>
</html>

　7. 执行 命令: npm run start