node. js Novice Tutorial--How to implement file upload function

  Zhanhailiang Date: 2014-11-16

This article describes how to use node. js to implement file upload functionality.

1. Initializing project information: NPM Init

[Root@~/Wade/Nodejs/Nodejs-upload-image-demo]# NPM InitThis utility would walk you through creating a Package.json file. It is covers the most common items, and tries to guess sane defaults. See`Npm HelpJson`  forDefinitive documentation on these fieldsand exactly what they do. Use`NpmInstall <Pkg>--save`Afterwards toInstallA package Andsave it asA dependencyinchThe Package.json file. Press ^c at any TimeTo Quit.name:(Nodejs-upload-image-demo)Version(1.0.0)Description:how to use node. js to upload a imageentry point:(Index.js) TestCommandgitRepository(Https//Github.com/Billfeller/Nodejs-upload-image-demo.git)Keywords:author:billfellerlicense:(Isc)Mitabout toWriteTo/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. Change Package.json, configure the start command:

"Scripts": {     "start": "Node Index.js"},

3. Install the Dependent module: NPM install Formidable–save

4. Function Realization:

• index.js--Unified portal with request processor register;
• server.js--server module, which contains server creation, listens for requests, runs routing policies,
• router.js--routing policy, routed to the corresponding processor for request processing according to the request URL,
• requesthandler.js--request processor;

  Full source code See: Https://github.com/billfeller/nodejs-upload-image-demo

5. Start the server:

[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. Browse through the browser and upload the image:

6. References:

• Node Getting Started
• Nodebeginner

node. js Novice Tutorial--How to implement file upload function