mongodb

安装mongodb

我认为还是用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訪问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)
})

在mongodb创建自增id:

http://docs.mongodb.org/manual/tutorial/create-an-auto-incrementing-field/