使用Node.js，Express和Mongoose上传图像

本文介绍了使用Node.js，Express和Mongoose上传图像的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

请考虑更多的最新信息，因为这些年来发生了变化！

由于许多新的节点.js库很快就被淘汰了，而且我想要使用最新版本的Node.js（v0.4.1），Express（1.0.7）和Mongoose（1.1.0）上传图像的例子相对较少， 。其他人如何做？

Since many new Node.js libraries are quickly being rendered obsolete and there are relatively few examples anyways I want to ask about uploading images using the latest versions of Node.js (v0.4.1), Express (1.0.7), and Mongoose (1.1.0). How have others done it?

我发现： github/felixge/node-formidable ，但我一般来说是上传图像，所以我想通过使用Node.js和Express来学习一般的东西和方法。

I've found: github/felixge/node-formidable, but I am new to uploading images in general so I want to learn general stuff and ways of doing so using Node.js and Express.

推荐答案

我会第一次回答我自己的问题。我从源头上发现了一个例子。请原谅不好的缩进。复制和粘贴时，我不知道如何正确缩进。代码直接来自Express multipart / form在

I'll answer my own question for the first time. I found an example straight from the source. Please forgive the poor indentation. I wasn't sure how to indent properly when copying and pasting. The code comes straight from Express multipart/form-data example on GitHub.

// Expose modules in ./support for demo purposes require.paths.unshift(__dirname + '/../../support'); /** * Module dependencies. */ var express = require('../../lib/express') , form = require('connect-form'); var app = express.createServer( // connect-form (github/visionmedia/connect-form) // middleware uses the formidable middleware to parse urlencoded // and multipart form data form({ keepExtensions: true }) ); app.get('/', function(req, res){ res.send('<form method="post" enctype="multipart/form-data">' + '<p>Image: <input type="file" name="image" /></p>' + '<p><input type="submit" value="Upload" /></p>' + '</form>'); }); app.post('/', function(req, res, next){ // connect-form adds the req.form object // we can (optionally) define onComplete, passing // the exception (if any) fields parsed, and files parsed req.formplete(function(err, fields, files){ if (err) { next(err); } else { console.log('\nuploaded %s to %s' , files.image.filename , files.image.path); res.redirect('back'); } }); // We can add listeners for several form // events such as "progress" req.form.on('progress', function(bytesReceived, bytesExpected){ var percent = (bytesReceived / bytesExpected * 100) | 0; process.stdout.write('Uploading: %' + percent + '\r'); }); }); app.listen(3000); console.log('Express app started on port 3000');