Question

我有一个如下的router.js：

'use strict';

const express = require('express');
const router = express.Router();

const signupController = require('../controller/signup.controller');
const signinController = require('../controller/signin.controller');
const userListController = require('../controller/userList.controller');
const productController = require('../controller/product.controller');

const passport = require('passport');
require('../config/passport')(passport);


router.get('/users', passport.authenticate('jwt', {session: false}), userListController.getUserList);

router.post('/product', productController.addProduct)

router.post('/user/signup', signupController.Signup);

router.post('/user/signin', signinController.Signin);


module.exports = router;

并在productController.addProduct中我有这段代码：

'use strict';
var mongoose = require('mongoose');
var Product = require('../model/product.model');
var multer = require('multer');
var path = require('path');


// File storage configuration
const storage = multer.diskStorage({
    destination: (req, file, cb) => {
        cb(null, '...store some where in filesystem...');
    }
});

// File filter configuration
const fileFilter = (req, file, cb) => {
    if (path.extname(file) === '.gpg') {
        cb(null, true);
    } else {
        cb(null, false);
    }
};

// File upload configuration
const upload = multer({
    storage: storage,
    limits: {
        fileSize: 1024 * 1024 * 5
    },
    //fileFilter: fileFilter
});


// Loader module
exports.addProduct = (req, res, next) => {
    console.log(req.file);
    ...    
}

如何将上传添加到exports.addProduct =（req，res，next）=＆gt; {}，所以我可以访问req.file

我尝试过类似的东西，但没有用：

exports.addProduct =（upload.single（'productImage'），（req，res，next）=＆gt; {}

Answer 1

我会试试这个：

在productController中也导出upload。所以你需要添加：

exports.upload = upload;

// Loader module
exports.addProduct = ... // like in your code

由于路由器功能需要所有回调，请像这样修改router.js：

router.post('/product', productController.upload, productController.addProduct);

希望有所帮助。

Answer 2

在您的router.js中，添加

router.post('/product',productController.upload, productController.addProduct);

在productController.js中：

module.exports.upload=(upload.single('image')), (request, response, next)=>{
    next();
}

在productController.js

module.exports.addProduct=(  (request,response, next)=>{
 console.log(request.file);
next();
});

如何在nodejs控制器中添加中间件？

2 个答案: