如何在ExpressJS 4中定义动态嵌套路由

Question

目前我有2条路线。制造商模型与Manufacturer_tabs模型具有一对多关系。我在Sequelize和PostgreSQL中使用ExpressJS。当我尝试获取Manufacturer_tabs数据时，在邮递员中收到404错误。

app.js

var manufacturers  = require('./routes/manufacturers');
var manufacturer_tabs  = require('./routes/manufacturer_tabs');

app.use('/manufacturers', manufacturers);
app.use('/manufacturers/:manufacturer_id/manufacturer-tabs', manufacturer_tabs);

manufacturer_tabs.js

var models  = require('../models');
var express = require('express');
var router  = express.Router();

/* Get Manufacturer Tabs List */
router.get('/', function(req, res) {
  var manufacturer_id = req.params.manufacturer_id;
  models.ManufacturerTab.findAll().  
  then(function(manufacturers) {  
      res.status(200).json(manufacturers);  
  }, function(error) {  
      res.status(500).send(error);  
  });  
});
module.exports = router;