与 Express.js

Question

我在使用 Multer 和 express.js 时遇到一些问题。所以这很好用：

const multer = require('multer');
let upload = multer({dest: 'uploads/'});

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

但是当我尝试这样做时，req.file is undefined:

const multer = require('multer');
let upload = multer({dest: 'uploads/'});
router.route('/', upload.single('image'))
    .post(function (req, res, next) {
        console.log(req.file);
        let memory = new Memory();
        Object.assign(memory, req.body);
        memory.save(function (err) {
            if (err) {
                return res.send(err);
            }
            res.json({message: 'Memory Created', memory});
        });
    })

只是想知道如果我想将 routes.js 与 server.js 分开，正确的语法是什么。

我也试过这个：

const multer = require('multer');
let upload = multer({dest: 'uploads/'});
router.route('/')
    .post(upload.single('image'), function (req, res, next) {
        console.log(req.file);
        let memory = new Memory();
        Object.assign(memory, req.body);
        memory.save(function (err) {
            if (err) {
                return res.send(err);
            }
            res.json({message: 'Memory Created', memory});
        });
    })

谢谢

Answer 1

试试这个：

router.post('/', upload.single('image'), function (req, res, next) {
    console.log(req.file);

    // Do something with the file
});

确保 post 请求正文已将文件附加到 image 属性。如果你是用Postman来测试的话，应该是这样的：

与 Express.js

Multer with Express.js

javascript

node.js

multer