Question

我尝试将表单数据发送到nodejs，但req.body始终为空，并且req.files未定义。这是我的代码的 index.js

const express = require('express');
const app = express();
const mongoose = require('mongoose');
mongoose.Promise = global.Promise;
const config = require('./config/database');
const path = require('path');
const bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({extended: true}));
app.use(bodyParser.json());
const router = express.Router();
const products = require('./routes/product')(router);
const port = process.env.PORT || 3030;
app.use('/products', products);

app.listen(port, () => {
    console.log('Listening on port ' + port + ' in ' + process.env.NODE_ENV + ' mode');
});

并在product.js文件中

let multer = require('multer');
let upload = multer();


module.exports = (router) => {

  router.post('/newProduct', (req, res) => {
          console.log('req');
          console.log( req.body );
          console.log( req.files );
})
}

Answer 1

我建议至少阅读multer readme

您需要告诉multer上传每条路线的文件。

例如

WHERE

或者您也可以将INNER JOIN用于单个文件，或router.post('/newProduct', upload.array('files', 5), (req, res) => { console.log('req'); console.log( req.body ); console.log( req.files ); })来处理多个上传表单字段。但所有这些都在他们的页面中得到了更好的解释。

为什么req.body始终为空，并且在发送表单数据时始终未定义req.files

1 个答案: