S3 Nodejs TypeError：无法读取属性path＆＃39; 未定义

我在Nodejs中实现这个function，将文件（照片，mp3，pdf）上传到amazon web servicess3。 目前正试图上传一个MP3文件，但我不断收到错误：“TypeError：无法读取未定义的属性”path“。 我正在使用Multipart middlemware。

var fs = require('fs'); //S3FS instance var S3FS = require('s3fs') //multiparty middleware (to upload our file)----> S3FS will read it's object and stream it to AWS //nmp install connect-multiparty var multiparty = require('connect-multiparty'), multipartyMiddleware = multiparty(); var express = require('express'); var route = express.Router(); module.exports = route; route.use(multipartyMiddleware); //create new filesystem var s3fsImpl = new S3FS('unasbeatz', { accessKeyId: 'xxxxxxx', secretAccessKey: 'xxxxx' }); //create bucket ----> unasbeatz s3fsImpl.create(); route.post('/', function (req, resp) { //get the file from our request object (from multiparty object, it sets the request object) var file = req.files.file; //create new readstream var stream = fs.createReadStream(file.path); //write to AWS using stream return s3fsImpl.writeFile(file.originalFileName, stream).then(function () { fs.unlink(file, function (err) { if (err) console.error(err); }) //else we write uploaded console.log('uploaded'); }) }) route.get('/', function (req, resp) { resp.json({ SecretData: 'abcde' }) }); 

var stream：抓取每个上传文件的直接部分。 但是我不知道为什么会出现错误

错误：

 TypeError: Cannot read property 'path' of undefined at /Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/app/routes/mp3_route.js:34:42 at Layer.handle [as handle_request] (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/layer.js:95:5) at next (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/route.js:131:13) at Route.dispatch (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/route.js:112:3) at Layer.handle [as handle_request] (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/layer.js:95:5) at /Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/index.js:277:22 at Function.process_params (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/index.js:330:12) at next (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/index.js:271:10) at multipart (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/connect-multiparty/index.js:50:53) at Layer.handle [as handle_request] (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/layer.js:95:5) at trim_prefix (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/index.js:312:13) at /Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/index.js:280:7 at Function.process_params (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/index.js:330:12) at next (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/index.js:271:10) at Function.handle (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/index.js:176:3) at router (/Users/AzeezOlusegunOdumosu/Desktop/unasbeatz/node_modules/express/lib/router/index.js:46:12) 

Answer 1

使用busboy接收路线中的文件。

Answer 2

我最终实现的是在AWS中上传我的文件，并将他们的URL保存在MongoDB中，然后在我的Web应用程序中寻找这些URL以在浏览器中显示这些文件