前言
目前前端更新迭代越来越快,相应的配套服务也跟着快速发展,node service koa 使用 webpack 打包方案
安装
npm install
npm run build
- 新建项目 package.json
{
"name": "koa2-blog",
"version": "1.0.0",
"description": "blog",
"main": "main.js",
"directories": {"lib": "./src/main.js"},
"scripts": {
"dev": "supervisor -w src src/main.js",
"build": "webpack --progress --hide-modules --config webpack.config.js",
"test": "./node_modules/mocha/bin/mocha --harmony test"
},
"author": "Jiang Xiao Er",
"license": "MIT",
"dependencies": {"config-lite": "^2.0.0",},
"devDependencies": {
"babel-core": "^6.22.1",
"babel-loader": "^6.2.10",
"babel-minify-webpack-plugin": "^0.3.1",
"babel-plugin-transform-runtime": "^6.23.0",
"babel-preset-es2015": "^6.24.1",
"babel-preset-stage-3": "^6.24.1",
"clean-webpack-plugin": "^0.1.17",
"crypto": "^1.0.1",
"express": "^4.17.1",
"fs": "^0.0.1-security",
"mocha": "^4.0.1",
"path": "^0.12.7",
"webpack": "^3.10.0",
"webpack-node-externals": "^1.7.2"
}
}
- webpack.config.js
/**
* Created by Jiang Xiao Er 2019/7/10.
*
*
*/
'use strict';
const webpack = require('webpack');
const path = require('path');
const cleanWebpackPlugin = require('clean-webpack-plugin');
var nodeExternals = require('webpack-node-externals');
const MinifyPlugin = require('babel-minify-webpack-plugin');
module.exports = {entry: path.resolve(__dirname, 'service.js'), // 入口文件
output: {path: path.resolve(__dirname), // 输出路径
filename: 'app.js' // 输出项目根目录
},
module: {
loaders: [{
test: /\.js$/,
exclude: /node_modules/,
use: [{
loader: 'babel-loader',
options: {presets: ['es2015', 'stage-3'] // 兼容 es6,并添加.babelrc
}
}]
}]
},
target: 'node', // 服务端打包
externals: [nodeExternals()], //node 打包可去除一些警告
resolve: {
modules: [
'node_modules',
path.resolve(__dirname, 'src')
]
},
plugins: [new cleanWebpackPlugin(['app.js'], {root: path.resolve(__dirname, './')
}),
new MinifyPlugin() // 压缩 js]
};
- ES6 语法支持
修改项目中的 .babelrc 文件
{
"presets": [
"es2015",
"stage-3"
],
"plugins" : ["transform-runtime"]
}
- service.js
const $ = require('jquery')
console.log("Hello Word,hi jquery")
console.log("hi jquery",$)
$ npm run build
$ node app.js
项目地址 https://github.com/shanyanwt/…
问题
因为是基于 node 环境下打包,其实 webpack 并没有把项目中的 node_modules 打入 app.js 说以执行 app.js 的前提下需要在该项目录下执行,webpack 打包只是吧 多文件整合到一个文件中,并没有项目依赖,在服务其中还需要重新 npm install,如果一天也可以像打 web 项目一样吧依赖打入文件和 java 生成编译后的 jar 执行文件,这样生产环境也就省去一些不必要的环节。
如果你有好的建议和想法可以在评论区留言,或者邮箱联系: shanyanwt@163.com
愿你保持独立思考、不卑、不亢、不怂努力长成自己喜欢的样子