Multer无法在console.log中获取精选字段名

const express = require('express');
const multer = require('multer');
const bodyParser = require('body-parser');

const app = express();

// 使用body-parser中间件解析请求体
app.use(bodyParser.urlencoded({ extended: false }));

// 设置Multer中间件处理文件上传
const upload = multer({ dest: 'uploads/' });

// 处理POST请求，包含文件上传和其他表单字段
app.post('/upload', upload.single('file'), (req, res) => {
  // 打印Multer之前解析的表单字段
  console.log(req.body);

  // 打印文件信息
  console.log(req.file);

  res.send('File uploaded successfully.');
});

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});