作者：zhanhailiang 日期：2014-11-16

本文将介绍如何使用Node.js实现文件上传功能。

1. 初始化项目信息：npm init

[root@~/wade/nodejs/nodejs-upload-image-demo]# npm init  This utility will walk you through creating a package.json file.  It only covers the most common items, and tries to guess sane defaults.     See `npm help json` for definitive documentation on these fields  and exactly what they do.     Use `npm install <pkg> --save` afterwards to install a package and  save it as a dependency in the package.json file.     Press ^C at any time to quit.  name: (nodejs-upload-image-demo)   version: (1.0.0)   description: how to use node.js to upload an image  entry point: (index.js)   test command:   git repository: (https://github.com/billfeller/nodejs-upload-image-demo.git)   keywords:   author: billfeller  license: (ISC) MIT  About to write to /root/wade/nodejs/nodejs-upload-image-demo/package.json:     {    "name": "nodejs-upload-image-demo",    "version": "1.0.0",    "description": "how to use node.js to upload an image",    "main": "index.js",    "scripts": {      "test": "echo \"Error: no test specified\" && exit 1"    },    "repository": {      "type": "git",      "url": "https://github.com/billfeller/nodejs-upload-image-demo.git"    },    "author": "billfeller",    "license": "MIT",    "bugs": {      "url": "https://github.com/billfeller/nodejs-upload-image-demo/issues"    },    "homepage": "https://github.com/billfeller/nodejs-upload-image-demo"  }        Is this ok? (yes) yes

2. 修改package.json，配置启动命令：

"scripts": {       "start": "node index.js"   },

3. 安装依赖模块：npm install formidable –save

4. 功能实现：

• index.js——统一入口，包括请求处理器注册；
  </li>
• server.js——服务器模块，包括服务器创建，监听请求，执行路由策略；
• router.js——路由策略，根据请求url路由到相应的处理器进行请求处理；
• requestHandler.js——请求处理器；
</ul>

  完整源码请见：https://github.com/billfeller/nodejs-upload-image-demo

5. 启动服务器：

[root@~/wade/nodejs/nodejs-upload-image-demo]# npm start     > nodejs-upload-image-demo@1.0.0 start /root/wade/nodejs/nodejs-upload-image-demo  > node index.js     server is starting

6. 通过浏览器访问并上传图片：



6. 参考：

• Node入门
• nodebeginner
</div> </div> 来自：http://blog.csdn.net/billfeller/article/details/41162179