nodejs connect to mongodb

The Windows platform uses a MongoDB shell to connect to a MONGODB server and create a database command line into the bin directory of MongoDB run Mongod.exe mongod --dbpath c:\data\dbOr find the bin directory of MongoDB and double-click Run Mongod.exe. To outpu

Zhang San in the user table and prints the result function(err, result) { ifthrow Err; Console.log (result);})Output results in console:// added A new user function(err, result) { ifthrow) to the User data table err; Console.log (result);})Output results in console:The database displays:As you can see, there is one more user named Lisi in the database, but no IDTo delete the data:// Delete delete user function(err, result) { ifthrow) in user table named Xiaoming err;

Mongodb Install mongodb I think mannual install is a little more reliable: http://docs.mongodb.org/manual/tutorial/install-mongodb-on-os-x/ Start mongodb $ Mongod Connect to mogodb $ Mongo Mongo> use monk-app Mongo> db. products. insert ({"name": "apple juice", "description

Tags: devops inux html ora class tor BSP Select ManFirst, MongoDB 1. Installation Because the download installation with Yum source always times out, the Tarball mode installation is selected. Official installation Method Link, https://docs.mongodb.com/manual/tutorial/install-mongodb-on-linux/ 2. Use Books, you can refer to the "Mongodb_the_definitive_guide", mainly on the use of MONGO shell tool additions

Tags: Family file View Mic Files name Introduction switch + +MongodbFirst, the concept:1. Introduction: A database based on distributed file storage written by the C + + language2. Function: Easy access to data3. Download and install3.1 DownloadsBit:https://www.mongodb.com/download-center?jmp=nav#communitybit:https://www.mongodb.org/dl/win32/3.2 InstallationDouble-click the next step4. MongoDB Graphical interface tool: Robomongo ==> Download official

1. Provision and installation of resources (Ayjs.net) Learning instructions: Nodejs is still operating in a non-Windows environment, so everything is Current time: December 06, 2014 Aaronyang Website address: www.mongodb.org Document reference Address: http://docs.mongodb.org/manual Current mongodb-osx-x86_64-2.6.5.gz: Baidu Cloud Download extract password: Azoa Code installation: (s

Learning to write MongoDB, using the Nodejs. Here I put the hole first record, later can slowly find. This article is also slowly, for the sake of brevity, all omit the handling of errors.Basic operations:1. Increase1 varMONGO = require (' MongoDB '). Mongoclient2 varName = {3City: ' Wuhan ',4Country: ' China '5 }6Mongo.connect ('

Some time ago to reference Scott's tutorials and related materials, using NODEJS+EXPRESS+MONGODB to build a simple website. The function is relatively simple, mainly is the practice Nodejs also has the study use bower, grunt and so on tools.Of course, it is necessary to have a certain Nodejs foundation, the individual

Tags: tab ROR script data automatic log err style NEC var mysql = require (' mysql '); var Conn; function HandleError () { conn = mysql.createconnection ({ host: ' localhost ', User: ' Nodejs ', password : ' Nodejs ', database: ' Nodejs ', port:3306 }); Connection error, 2-second retry conn.connect (functio

NodeJS-based Promise-based shard skin reads and writes to MongoDB and nodejsmongodb Promise is an asynchronous programming code writing method. Like the Async module, Promise can improve code readability and maintainability. Async encapsulation is better than Promise, but the flexibility, especially the thorough CallBack conversion, is worse than Promise. The source code is directly pasted below, and the co

Previous wordsThis article will describe in detail how to install Nodejs and MongoDB under Linux environmentsNodeJS1. Download the Nodejs installation package in the Linux environment on the official website2. Upload the installation package to the server via XFTP software3. Unzip the. Tar.xz Suffix installation package$XZ-D* * *-XVF ***.tar4, after decompressio

In this article, we will continue to introduce how to use and use the connect middleware in nodejs. I. Opening Analysis Hello everyone, this article is mainly about the source code analysis series for the "Connect" middleware and related auxiliary middleware, I introduced the usage and usage, and this article also gave readers a deeper understanding of it out of

MONGO commands in the MONGO command-line tool. Basic operation of MongoDB command line 1.show DBS: View Database 2.show Collections: View the collection of the current database 3.db. Collection_name.find (): View all documents under this collection 4.use database_name: Using a Database 5.db. Collection_name.insert ({"Key": "Value", "": "" ...}) : Inserts a document into a collection (note format) 6.db. Collection_name.find ({"A": 1}): Find a d

Label: Wget http://nodejs.org/dist/v0.8.7/node-v0.8.7.tar.gz (Stable version) Wget http://nodejs.org/dist/v0.10.22/node-v0.10.22.tar.gz (Latest version) 2. DecompressionTAR-XVF node-v0.10.22-linux-x64.tar.gzCD node_xxx 3. Installation Yum Install gcc-c++ (if has no C compiler) ./configure 4, Installation Nodejs Make install If the Python version is too low, you may get an error, please upgrade http://gavinshaw.blog.51cto.com/385947/610585 first This

Tags: nosql mongodb visual Connection1. Install NoSQL Manager for MongoDB: Http://www.mongodbmanager.com/download2, open the client, choose Server-new MongoDB Connection ...3, in the Connection Configuration window to fill in the host, identity authentication, user name, password, database name4, switch to databases, fill in the database name, click OK to

My MongoDB is installed under Linux.First, add users first1, first on the MongoDB server host on the terminal command line, enterMongo2. Enter use Admin to enter user Management database3, Db.adduser ("username", "password"), here the username and password for you to set the user name and password, you can add a few, for later useIf no error message is raised, the user has been successfully added.Second, th

(1) Nodejs: Error Registering login sessionWorkaround:change var Mongostore = require (Connect-mongo ') to var mongostore = require (Connect-mongo ') (Express) in App.js;(2) Error connecting to database solution when connecting to MongoDB databaseIn this case your own MongoDB