node.js - 将上传的文件存储到 Express Js 的文件系统中

Question

我是nodejs新手，想知道如何将文件放入我的系统后端，甚至上传到S3等。

这是文件对象:

req.body { homeColor: 'black',
  guestColor: 'white',
  thirdColor: 'red',
  file: 
   { webkitRelativePath: '',
     lastModifiedDate: '2014-05-05T02:26:11.000Z',
     name: '2014-05-05 10.26.11.jpg',
     type: 'image/jpeg',
     size: 1310720 },
  title: 'tfuyiboinini' }

如何处理req.body.file以便可以物理保存它？

请帮忙，谢谢!

Answer 1

长话短说

var fs = require('fs');
app.post('/file-upload', function(req, res) {
    var tmp_path = req.files.thumbnail.path;
    var target_path = './public/images/' + req.files.thumbnail.name;
    fs.rename(tmp_path, target_path, function(err) {
        if (err) throw err;
        fs.unlink(tmp_path, function() {
            if (err) throw err;
            res.send('File uploaded to: ' + target_path + ' - ' + req.files.thumbnail.size + ' bytes');
        });
   });
};

您可以在这里阅读更多相关信息: http://www.hacksparrow.com/handle-file-uploads-in-express-node-js.html