问题：

如下代码，能正常上传文件，但是页面无法跳转，经调试，当选择文件后上传没有进入到uploadFile回调函数内，而不选择文件直接提交就可以，为什么啊

var multer = require('multer');
var storage = multer.diskStorage({
    destination: function(req, file, cb) {
        cb(null, './public/images/')
    },
    filename: function(req, file, cb) {
        cb(null, file.originalname)
    }
 })
var uploadFile = multer({
storage: storage
}).single('file1');
app.post('/upload', function(req, res) {
    uploadFile(req, res, function(err) {
        console.log('测试是否可以到达。');
        if (err) {
            console.log(err);
        } else {
        }
        res.redirect('/upload');
    })

6 回复

用错了，看文档去

@i5ting 我就是看着文档写的啊，哪里用错了，请告知，万分感谢

single处位置不对

filename改成下面这样就行了，我可以理解为文件名中一定要包含一个时间戳才行吗。。。

filename: function(req, file, cb) {
    var fileFormat = (file.originalname).split(".");
    cb(null, file.originalname + '-' + Date.now() + "." + fileFormat[fileFormat.length - 1]);
}

i5ting

5楼•10 年前

var express = require('express')
var multer  = require('multer')
var upload = multer({ dest: 'uploads/' })

var app = express()

app.post('/profile', upload.single('avatar'), function (req, res, next) {
  // req.file is the `avatar` file
  // req.body will hold the text fields, if there were any
})

app.post('/photos/upload', upload.array('photos', 12), function (req, res, next) {
  // req.files is array of `photos` files
  // req.body will contain the text fields, if there were any
})

var cpUpload = upload.fields([{ name: 'avatar', maxCount: 1 }, { name: 'gallery', maxCount: 8 }])
app.post('/cool-profile', cpUpload, function (req, res, next) {
  // req.files is an object (String -> Array) where fieldname is the key, and the value is array of files
  //
  // e.g.
  //  req.files['avatar'][0] -> File
  //  req.files['gallery'] -> Array
  //
  // req.body will contain the text fields, if there were any
})

Chensonghao

6楼•10 年前

@i5ting 谢谢，回家在macbook上试了一切正常，应该是windows系统的bug吧。。。