Question

我在Nodejs中实现这一点，将文件（照片，mp3，pdf）上传到亚马逊网络服务s3。目前我正在尝试上传一个mp3文件，但我一直得到错误：“TypeError：无法读取未定义的属性'路径'”。我正在使用Multipart中间件。

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：直接抓取每个上传文件的一部分。但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中更新我的文件并将其保存在MongoDB中，然后在我的Web应用程序中重新获取这些URL以在浏览器中显示这些文件

S3 Nodejs TypeError：无法读取未定义的属性“path”

2 个答案: