安装mongodb
我觉得还是用mannual install靠谱一点儿:http://docs.mongodb.org/manual/tutorial/install-mongodb-on-os-x/
启动mongodb
$ mongod
连接mogodb
$ mongo
mongo> use monk-app
mongo> db.products.insert({"name":"apple juice", "description":"good"})
WriteResult({ "nInserted" : 1 })
mongo> db.products.find().pretty()
{
  "_id" : ObjectId("53b4cf8d5ef358e649ff1665"),
  "name" : "apple juce",
  "description" : "good"
}
在nodejs中用monk访问mongodb
$ mkdir monk-app $ cd monk-ap
创建package.json
{
 "name": "monk-app",
 "version": "0.0.1",
 "private": true,
 "dependencies": {
  "mongodb": "*",
  "monk": "*"
 }
}
$ npm install
创建app.js
链接前面创建的数据库
var monk = require('monk')
var db = monk('localhost:27017/monk-demo')
读取数据:
var monk = require('monk')
var db = monk('localhost:27017/monk-demo')
var products = db.get('products')
  products.find({}, function(err, docs) {
   console.log(docs)
})
[ { _id: 53b4d3238cb4707ca35ab6f8,
  name: 'apple juice',
  description: 'good' } ]
插入数据:
products.insert({"name":"orange juice","description":"just so so"})
查找数据:
products.find({"name":"apple juice"}, function(err, docs) {
  console.log(docs)
})