Question

快速路由器设置如下：

var router = require('express').Router();
var multer  = require('multer');

var uploading = multer({
  dest: './uploads/',
  limits: {fileSize: 1000000, files:1},
});
router.post('/upload', uploading.single('avatar'), function(req, res) {
  console.log('success'); 
});
 module.exports = router;

我正在尝试上传文件：

curl -F "image=@/Users/runtimeZero/Desktop/nassau.jpg" localhost:3000/auth/upload

快递服务器抛出以下错误：

Error: Unexpected field
    at makeError (/Users/.../node_modules/multer/lib/make-error.js:12:13)
    at wrappedFileFilter (/Users/../node_modules/multer/index.js:39:19)
    ...
    ...
    at HeaderParser.push (/Users/.../node_modules/multer/node_modules/busboy/node_modules/dicer/lib/HeaderParser.js:46:19)
    at Dicer._oninfo (/Users/.../node_modules/multer/node_modules/busboy/node_modules/dicer/lib/Dicer.js:197:25)

从multer文件来看，这似乎非常简单。然而，实际使用它时并非如此。我错过了什么？

Answer 1

如果查看multer readme，您会看到multer()返回一个包含各种函数的对象，这些函数会根据您的需要返回不同的中间件。

例如，要接受name为“头像”的单个文件：

var upload = multer({dest: './uploads/'});
router.post('/upload', upload.single('avatar'), function(req, res) {
  console.log('success'); 
});

配置multer将文件上传到nodejs服务器

1 个答案: