Node+express+mongodb First Experience

From last November to now, has been want to learn nodejs, in this time experience Gulp, grunt, Yeomen,fis, but for Nodejs in-depth to learn, to develop projects are always intermittent.

Today spent a day to learn to organize the whole learning ideas, the following is my learning to share, is the entry-level learning experience for NODE+MONGODB development of small white, node has played a long time the great God this article may not be suitable.

Here's an example:

　Client Form page:

<! DOCTYPE html>"en -US">"UTF-8"> <title> Form pages </title>"http://localhost:3000/"> <input type="text"Name="title"/> <textarea name="text"Id=""cols=" -"Rows="Ten"></textarea> <input type="Submit"/> </form></body>
　　Server's page:
varHTTP = require ("http");varOpen = require ("child_process");varQueryString = require ("QueryString");varServer =http.createserver (function (req,res) {varPost ="'; Req.on ('Data', function (chunk) {post+=Chunk;        }); Req.on ('End', function () {post=Querystring.parse (POST); Res.writehead ( $,{"Content-type":"Text/html;charset=utf-8"});        Res.write (Post.title);        Res.write (Post.text);    Res.end (); });}). Listen ( the,'127.0.0.1'); Open.exec ("Start http://127.0.0.1:3000");
In this simple example, we implement the foreground form submission and retrieve the data in the background.
With this simple example, we might want to do something more complicated, so how do we do it, Node+express+mongodb:
　　The first part, basic knowledge point Summary
express--a simple and flexible node. JS Web application Framework
mongodb--a relational database for node
Mongoose-Mongoose is a MongoDB object Model tool that is similar to ORM, making Nodejs easier to manipulate MongoDB database, Mongoose document
A deep discussion on node template engine--ejs,jade node template engine
Web templates Jade, EJS, handlebars code interpretation efficiency comparison, Jade complete defeat HTTPS://CNODEJS.ORG/TOPIC/50E70EDFA7E6C6171A1D70FA
EJS--http://www.embeddedjs.com/github Documentation--Https://github.com/tj/ejs
jade--HTML template Engine from node. JS http://segmentfault.com/a/1190000000357534
JADEAPI---Http://www.nodeclass.com/api/jade.html#doctype
MongoDB---http://docs.mongodb.org/manual/manual
MongoDB Introduction and Installation--http://www.cnblogs.com/lipan/archive/2011/03/08/1966463.html
What is MongoDB? ---http://www.w3cschool.cc/mongodb/mongodb-intro.html
　　Part II, configuring the development installation package
　　　① Configuration Package.json---NPM init initial configuration package dependencies
{  "name":"Pfan",  "version":"1.0.1",  "Description":"Pfan",  "Main":"App.js",  "Dependencies": {    "Express":"^4.12.4",    "Jade":"^1.10.0",    "Mongoose":"^4.0.3"  },  "devdependencies": {    "Body-parser":"^1.12.4"  },  "Scripts": {    "Test":"echo \ "Error:no test specified\" && exit 1"  },  "author":"",  "License":"ISC"}
　　Note here: In fact, it is very important to configure Package.json, we write the required dependent modules, and then through the NPM install can be installed in the parameters of the dependencies, here, in fact, we can install NPM Installation Express Generator Build the directory structure of the node project and the Package.json of the dependent modules　
② quickly build a Web MVC directory structure
Express is a lightweight, concise and easy-to-use node. JS WEB MVC Development Framework
Global installation, you can quickly build a directory structure Web MVC directory structure
NPM install-g Express-generator
Create an express WEBMVC directory structure project
Express DevExpress
③ Installing the Node module package relies on NPM install Express
NPM Install Express//Web application FrameworkNPM Install Jade//Template engineNPM Install Ejs//Template engineNPM Install Mongoose//MongoDB is an object model tool that is easier to operateNPM Install MongoDB//MongoDB's DriveNPM Install Serve-favicon//Unified Settings Site iconNPM Install Morgan//HTTP Request Log MiddlewareNPM Install Cookie-parser//Cookie ParserNPM Install Body-parser//Defining data parsersNPM Install Bower-G Bower Install bootstrap
　　　　Note: One problem is that we execute the NPM install in the command window to execute the package dependency in Package.json, then we execute it through the Express project name, then we can execute the dependency in the project case through the NPM install. thereby installing the entire project framework
　　　⑤ Start Express Project
NPM start    // looks like the current project has turned into this.
Part III, MONGODB pits---mongodb documentation (some old APIs to make changes)
 1. Installation
First, the installation of MongoDB, directly decompression installation, here no longer repeat.
Next, let's talk about MongoDB and node, and create a webapp new file data to store the data in the project folder.
CD node/Webappmkdir/   /New data file for storing
This result shows that the connection to MongoDB was successful!
、
2. Create a database
Enter MongoDB installation directory D:\Program files\mongodb\bin, knock command MONGO, switch database WebApp
CD  D:\Program files\mongodb\bin  // Enter directory MONGO           // execute MONGO  use WebApp    // Use WEBAPP database, switch database
Insert a usercollection table to execute:
" username " " TestUser1 " " Email " " [email protected] " })
Execute, view inserted data, whether successful
Db.usercollection.find (). Pretty ()   // View inserted data, whether successful
3. Configure the user name and password for the database
CD D:\Program Files\mongodb\bin//Go to CatalogMongo//Executive MONGOUse WebApp//Use the WebApp database to switch the databaseDb.createuser ({createUser:"Test"Pwd:"Test", Roles:[{role:"Dbowner"Db:"WebApp"}]})//set user name password, old version with Db.adduser noteShow Users//WebApp now existing users
　　　　
Last resource sharing:
Express Example: https://github.com/pingfanren/express
Examples of Express and database: Https://github.com/pingfanren/expressSimpleBlog
Blog: http://www.cnblogs.com/myzhibie/
Express Example: Https://github.com/nswbmw/N-blog/wiki/_pages
Leaves-Chai Blog: http://www.cnblogs.com/yexiaochai/p/3527418.html
Node+express+mongodb First Experience