app.js

'use strict'

const fs = require('fs')
const path = require('path')
const mongoose = require('mongoose')

const db = 'mongodb://localhost/test'

/**
 * mongoose连接数据库
 * @type {[type]}
 */
mongoose.Promise = require('bluebird')
mongoose.connect(db)

/**
 * 获取数据库表对应的js对象所在的路径
 * @type {[type]}
 */
const models_path = path.join(__dirname, '/app/models')


/**
 * 已递归的形式，读取models文件夹下的js模型文件，并require
 * @param  {[type]} modelPath [description]
 * @return {[type]}           [description]
 */
var walk = function(modelPath) {
  fs
    .readdirSync(modelPath)
    .forEach(function(file) {
      var filePath = path.join(modelPath, '/' + file)
      var stat = fs.statSync(filePath)

      if (stat.isFile()) {
        if (/(.*)\.(js|coffee)/.test(file)) {
          require(filePath)
        }
      }
      else if (stat.isDirectory()) {
        walk(filePath)
      }
    })
}
walk(models_path)


var koa = require('koa')
var bodyParser = require('koa-bodyparser')
var logger = require('koa-logger')
var session = require('koa-session')
// var koaBody = require('koa-body')
var app = koa()
app.use(bodyParser())
app.use(logger())
app.use(session(app))



/**
 * 使用路由转发请求
 * @type {[type]}
 */
var router = require('./config/router')()

app
  .use(router.routes())
  .use(router.allowedMethods())

app.listen(1234)
console.log('app started at port 1234...');