multer 文件后缀名

var storage = multer.diskStorage({
  destination: function (req, file, cb) {
    cb(null, 'upload1/')
  },
  filename: function (req, file, cb) {
    var singfileArray = file.originalname.split('.');
    var fileExtension = singfileArray[singfileArray.length - 1];
    cb(null, singfileArray[0] + '-' + Date.now() + "." + fileExtension);
    console.log(file);
  }
})

var upload = multer({
  storage: storage
})

router.post('/savedata', upload.single('logo'), function (req, res, next) {
  res.json({
    name: req.body.name,
    age: 10,
    range: [1, 2, 3, 4, 5, 6, 7]
  });
});

 

来源：https://www.cnblogs.com/sexintercourse/p/11784349.html