mongoose mongodb tutorial

Label:Mongoose Library in short, a convenient package for manipulating MongoDB databases in the node environment, an object model tool similar to Orm,mongoose converts data from a database into JavaScript objects for you to use in your app. Of course, you have to install the Environment node. js and MongoDB = "MongoDB

Objective After watching the node.js actual combat, which in the data storage part of the Redis, Mongodb, I also wrote the book according to the introduction of a few simple demo, in the demo process first encountered the problem is the type of data and common curd writing. There are two ways to mongodb common operations, one is to use the API directly, and the same is that you use T-SQL to write SQL state

in the (goods) schema, so it is not valid to append productnum and checked attributes to goods temporarily. Here we need to explain that even though we are attaching attributes to the schema, it is just that the implementation can actually hang on the schema and not be added to the schema. For example, just want to implement when adding goods, by the way, the value of Productnum and checked are assigned to the users table. We do not need to store attributes in goods. Conclusion: Objects used by

data, enter the use gabdb db.user.insert ({dataid : 10001}) Db.user.find () Switch to the From node, you will find that using show DBS will error, because you have not opened the permission, enter Rs.slaveok (), can be successfully accessed. 　　 Switch from node MONGO localhost:10002 //no permission Query show DBS //error 2016-01-06t14:48:53.155+0800 E query [ THREAD1] error:listdatabases failed:{"OK": 0, "errmsg": "Not Master and Slaveok=false", "Code": 13435}: //Open gabriel:seconda

The specific code looks like this: var express = require (' Express '); var mongoose = require (' Mongoose '); var router = Express. Router (); var person = Mongoose.model (' person ', { id:number, name:string }); /* Add/* router.get ('/insert ', function (req, res) { var student = new Person ({ id:1, name: "Huop" }); Mongoose.connect ("Mongodb:/

Go to the Bin folder under the folder where MongoDB is installed, execute the command: MONGO, you can use MongoDB.After installing the mongoose, in App.js, first introduce mongoose this module:var mongoose = require (' Mongoose ');Connect to the corresponding database;Port n

Tags: http io os using AR java for strong dataUsing Mongoose to manipulate MongoDB in BaeAlmost all of the examples on the web using mongoose are long-connected, because the relationship between the Nodejs itself mechanism, the use of long connections to some extent will improve performance, but Bae's free MongoDB does

GitHub Address: Https://github.com/linguowei/myblogClone the project Git down;Analysis:# git clone https://github.com/linguowei/myblog.git# cd myblog# npm install# npm run build# CD admin # NPM Run build#. CD.. /# node app.js# localhost:7000# localhost:7000/adminRun the code;Install dependent packages here, as well as package build background projects and foreground projects# node app for running servicesApp.jsWhich is connected to the data:App.use (Router)Database connection + set up various ta

Third party learning Address:http://blog.csdn.net/foruok/article/details/47746057Download MongoDBHttps://www.mongodb.com/download-centerOrHttps://fastdl.mongodb.org/win32/mongodb-win32-x86_64-2008plus-ssl-3.2.9-signed.msiAfter download, the default is: C:\Program Files\mongodb\server\3.2\binCreate a new or start a database (you need to create a new file structure E:\Mon