节点/杂项获取文件名 [英] Node/Multer Get Filename

问题描述

我正在使用以下内容通过Multer将文件上传到目录.效果很好，但是上传后我需要执行一些操作，这些操作需要我刚刚发布到"upload"目录中的文件名.如何获取刚刚发布的文件的名称?

I am using the following to upload files to a directory via Multer. It works great, but I need to perform some actions after upload that require the name of the file I just posted to the "upload" directory. How do I get the name of the file I just posted?

// Multer storage options
var storage = multer.diskStorage({
  destination: function(req, file, cb) {
    cb(null, 'upload/');
  },
  filename: function(req, file, cb) {
    cb(null, file.originalname + '-' + Date.now() + '.pdf');
  }
});

var upload = multer({ storage: storage });

app.post('/multer', upload.single('file'), function(req, res) {
  // Need full filename created here
});

推荐答案

request.file提供以下统计信息，您只需从中选择request.file.originalname或request.file.filename即可获取由nodejs应用创建的新文件名.

request.file gives the following stats, from which you would just need to pick request.file.originalname or request.file.filename to get the new filename created by nodejs app.

{ 
  fieldname: 'songUpload',
  originalname: '04. Stairway To Heaven - Led Zeppelin.mp3',
  encoding: '7bit',
  mimetype: 'audio/mp3',
  destination: './uploads',
  filename: 'songUpload-1476677312011',
  path: 'uploads/songUpload-1476677312011',
  size: 14058414 
}

例如，在nodejs中使用ecma-6表示mvc应用程序

Eg, in nodejs express mvc app with ecma-6,

var Express = require('express');
var app = Express();

var multipartUpload = Multer({storage: Multer.diskStorage({
    destination: function (req, file, callback) { callback(null, './uploads');},
    filename: function (req, file, callback) { callback(null, file.fieldname + '-' + Date.now());}})
}).single('songUpload');

app.post('/artists', multipartUpload, (req, resp) => {
     val originalFileName = req.file.originalname
     console.log(originalFileName)
}

这篇关于节点/杂项获取文件名的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！