Vue+Webpack项目配置

vue-loader+webpack项目配置
npm i webpack vue vue-loader
npm i css-loader vue-template-compiler

webpack.config.js

const path = require('path')
const VueLoaderPlugin = require('vue-loader/lib/plugin'); //引入这行

const HTMLPlugin = require('html-webpack-plugin');
const isDev = process.env.NODE_ENV === 'development'
const webpack=require('webpack')

const config = {
    target: 'web',
    entry: path.join(__dirname, 'src/index.js'),
    output: {
        filename: 'bundle.js',
        path: path.join(__dirname, 'dist')
    },
    module: {
        rules: [
            {
                test: /.vue$/,
                loader: 'vue-loader'
            },
            {
                test: /.css$/,
                use: [
                    'style-loader',
                    'css-loader'
                ]
            },
            {
                test: /.styl$/,
                use: [
                    'style-loader',
                    'css-loader',
                    'stylus-loader'
                ]
            },
            {
                test: /.(gif|jpg|jpeg|png|svg)$/,
                use: [
                    {
                        loader: 'url-loader',
                        options: {
                            limit: 1024,
                            name: '[name]-simon.[ext]'
                        }
                    }
                ]
            },
        ]
    },
    plugins: [
        new VueLoaderPlugin(), //new一个实例
        new webpack.DefinePlugin({
            'process.env': {
                NODE_ENV: isDev ? ' "development" ' : ' "production" '
            }
        }),
        new HTMLPlugin()
    ]
}

if (isDev) {
    config.devtool='#cheap-module-eval-source-map'  //生成调试代码映射
    config.devServer = {
        port: 8000,
        host: '0.0.0.0',
        overlay: {
            errors: true,
        },
        hot:true  //热加载
    }
     config.plugins.push(
         new webpack.HotModuleReplacementPlugin(),
         new webpack.NoEmitOnErrorsPlugin() 
     )
}

module.exports = config

index.js

import Vue from 'vue'
import App from './app.vue'

import   './asserts/styles/test.css'
import  './asserts/images/beijing.jpg'

const root=document.createElement('div')
document.body.appendChild(root)

new Vue({
     render:(h)=>h(App)
}).$mount(root)

webpack-dev-server的配置和使用
npm i webpack-dev-server
npm i cross-env //跨平台读取本地环境变量
package.json

"scripts": {
    "test": "echo "Error: no test specified" && exit 1",
    "build": "cross-env NODE_ENV=production  webpack --config webpack.config.js",
    "dev": "cross-env NODE_ENV=development webpack-dev-server  --config webpack.config.js"
  },

webpack.config.js

const isDev = process.env.NODE_ENV === 'development'

const config={
 target: 'web',
}

if (isDev) {
    config.devtool='#cheap-module-eval-source-map'
    config.devServer = {
        port: 8000,
        host: '0.0.0.0',
        overlay: {
            errors: true,
        },
        hot:true
    }

生成HTML容器
npm i html-webpack-plugin

const HTMLPlugin = require('html-webpack-plugin');
 new webpack.DefinePlugin({
            'process.env': {
                NODE_ENV: isDev ? ' "development" ' : ' "production" '
            }
        }),
        new HTMLPlugin()