Question

使用Express和Multer，我们可以将文件上传到部署了nodejs的服务器。那么我们如何将文件上传到远程服务器呢？

Answer 1

随着闷热，它真的很简单。将multer作为中间件传递给路由器。例如，如果要将文件上载到端点/上载文件

app.post('/uploadfile', multer_middleware, function(req, res){
    res.end("uploaded");
});

multer_middleware会是这样的。

var multer_middleare = multer({ dest: './path_to_storage',
    onFileUploadComplete: function (file) {
        // after file is uploaded, upload it to remote server
        var filename = file.name;

        request({
            method: 'PUT',
            preambleCRLF: true,
            postambleCRLF: true,
            uri: 'http://remote-server.com/upload',
            auth: {
                'user': 'username',
                'pass': 'password',
                'sendImmediately': false
            },
            multipart: [
                { body: fs.createReadStream('./path_to_storage/' + filename) }
            ]
        },
        function (error, response, body) {
            if (error) {
                return console.error('upload failed:', error);
            }
            console.log('Upload successful!  Server responded with:', body);
        })
    });

上传文件后，您可以使用request之类的HTTP客户端将其上传到远程服务器。

不要忘记在文件开头导入multer

var multer  = require('multer');

Answer 2

您可以使用heroku进行部署，然后使用Cloudinary将其上传到云中。

//requiring cloudinary and multer

const cloudinary = require('cloudinary');
const cloudinaryStorage = require('multer-storage-cloudinary');
const multer = require('multer');

cloudinary.config({
  cloud_name: process.env.CLOUDINARY_NAME,
  api_key: process.env.CLOUDINARY_KEY,
  api_secret: process.env.CLOUDINARY_SECRET
});

var storage = cloudinaryStorage({
  cloudinary,
  folder: 'assets', // The name of the folder in cloudinary
  allowedFormats: ['jpg', 'png', 'jpeg', 'gid', 'pdf'],
  filename: function (req, file, cb) {
    cb(null, file.originalname); // The file on cloudinary would have the same name as the original file name
  }
});


const uploadCloud = multer ({ storage: storage})
//const uploadCloud = multer({ storage: storage }).single('file');

module.exports = uploadCloud;

nodejs使用Multer将文件上传到远程服务器？

2 个答案: