平均堆栈：我们可以同时使用body解析器和multer中间件吗？

Question

我正在制作MEAN商店应用。我在将图像存储到数据库时遇到麻烦。我同时使用body-parser和multer。我们可以同时使用两种中间件吗？

这是server.js文件：

var express = require('express');
var bodyParser = require('body-parser');
var cors = require('cors');
var path = require('path');
var http = require('http');
var multer = require('multer');

var app = express();
var api = require('./server/routes/api');

app.use(cors());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
  extended: false
}));

var upload = multer({
  dest: path.join(__dirname, '/server/public/images'),
});

app.use(express.static(path.join(__dirname + '/dist/meanshopcart')));
app.use('/api', api.router);
app.post('/userlogin', api.login);
app.post('/sign-up', api.signup);
app.post('/product', upload.single('productimage'), api.addProduct);
app.use(api.authenticate);

app.get('*', function(req, res) {
  res.sendFile(path.join(__dirname, '/dist/meanshopcart/index.html'));
});

addProduct函数：

function addProduct(req, res, next) {
  console.log("adding new product");

  var newProduct = new Product({
    productName: req.body.productname,
    productCategory: req.body.productcategory,
    productDescription: req.body.productdescription,
    productPrice: req.body.productprice
  });

  newProduct.productImage.data = fs.readFileSync(req.file);
  newProduct.productImage.contentType = 'image/jpg';

  newProduct.save(function(err) {
    if (err) {
      console.log("error saving product");
      res.status(400).json({
        success: false,
        message: 'Error processing request ' + err
      });
    } else {
      console.log("product inserted");
      res.status(201).json({
        success: true,
        message: 'Product added successfully.'
      });
    }
  });
}

module.exports = {
  router,
  signup,
  login,
  authenticate,
  addProduct
};