webpack 也可以作为本地服务器吗

webpack配置文件

之前是依赖全局环境下的打包过程，下面将 webpack 安装到项目的依赖中，这样就可以使用项目本地版本的 webpack

首先创建package.json文件：
npm init
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自动生成后如下：
{
"name": "webpack-package.json",
"version": "1.0.0",
"description": "",
"main": "bundle.js",
"dependencies": {},
"devDependencies": {},
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [
"webpack"
],
"author": "yangll",
"license": "ISC"
}
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安装项目环境
npm install webpack --save-dev //安装
npm uninstall webpack --save-dev //卸载
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设置Webpack 的配置文件webpack.config.js
var webpack = require('webpack');
var path = require('path');

module.exports = {
entry: path.resolve(__dirname, './entry.js'),
output: {
path: path.resolve(__dirname, './'),
filename: 'bundle.js',
},
};
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命令后执行webpack完成打包
webpack
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打包日志如下

Hash: 71820986fc674176394e
Version: webpack 1.13.1
Time: 82ms
Asset Size Chunks Chunk Names
bundle.js 1.42 kB 0 [emitted] main
[0] ./entry.js 27 bytes {0} [built]
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设置 package.json scripts

把下面的内容添加到 package.json

"scripts": {
"build": "webpack"
}
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然后输入 npm run build 就可以编译了

启动webpack内置服务器环境

使用 webpack-dev-server 开发服务是一个更好的选择。它将在 localhost:8080 启动一个 express 静态资源 web 服务器，并且会以监听模式自动运行 webpack，在浏览器打开 http://localhost:8080/ 或 http://localhost:8080/webpack-dev-server/ 可以浏览项目中的页面和编译后的资源输出，并且通过一个 socket.io 服务实时监听它们的变化并自动刷新页面。
安装

$ npm install webpack-dev-server --save-dev
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启动

webpack-dev-server
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日志

http://localhost:8080/webpack-dev-server/
webpack result is served from /
content is served from D:\project
Hash: 71820986fc674176394e
Version: webpack 1.13.1
Time: 141ms
Asset Size Chunks Chunk Names
bundle.js 1.42 kB 0 [emitted] main
chunk {0} bundle.js (main) 27 bytes [rendered]
[0] ./entry.js 27 bytes {0} [built]
webpack: bundle is now VALID.