Nodejs Create the base application and apply the template engine _node.js

The purpose of this is to build a most basic can realize the function of the Nodejs server, can reflect the Nodejs workflow and development of the basic framework.
Requirements: Nodejs and express have been installed.
First, build the foundation of the Nodejs server (express, routing)

var express = require (' Express '); Introduction of the Express module 
var app = Express ();//Call the Express () function to initialize the function 
app.get ('/stooges/:name? ', Functions (req, RES, Next) {//Set the first route, expecting a name to be entered 
 var name = Req.params.name;//Get the input name, req.params 
 switch (name?name.tolowercase ( ): ' {//judge the name by 
 ' Larry ': Case ' 
 Curly ': Case 
 ' moe ': 
  res.send (name + ' is my favorite stooge. ');//Compliant Conditions use Res.send to send information to break 
 ; 
 Default: Next () the  
  //next () function, which also has parameter passing in the function, means that if this route passes a parameter that is not enough to perform this route, the next () function means to go to the next function (this is the route). 
} 
}); 
App.get ('/stooges/*? '), function () {//here? Indicates that the last parameter may or may not be the same as the previous route 
 Res.send (' no Stooges listed '); 
}); 
App.get ('/? ', function (req,res) {//None of the time default routing 
 res.send (' Hello World '); 
var port = 8080; Set up and monitor the ports 
App.listen (port); 

Second, the use of Jade template engine, add template rendering

var express = require (' Express '); 
var app = Express (); 
The following three sentences complete the set of view, including engine, template path, and other settings 
App.set (' View engine ', ' Jade '); 
App.set (' view options ', {layout:true}); 
App.set (' views ', __dirname + '/views '); 
App.get ('/stooges/:name? ', Function (req, res, next) { 
 var name = Req.params.name; 
 Switch (name?name.tolowercase (): ') {case ' Larry ': Case ' 
 Curly ': Case 
 ' moe ': 
  res.render (' Stooges ', {stooge:name}); To render the view, the incoming template name can break 
 ; 
 Default:  
  next (); 
} 
}); 
App.get ('/stooges/*? ', Function (req, res) { 
 res.render (' stooges ', {stooges:null}); 
}); 
App.get ('/? ', Function (req, res) { 
 res.render (' index '); 
}); 
var port = 8080; 
App.listen (port); 

A total of three template files, Layout.jade (layout file), Index.jade and Stooges.jade, three template file code are as follows:
Layout.jade

!!! 5//Representative document type is HTML5
html (lang= "en")
head
 Title I Web Site block
 scripts block
content
 

Index.jade

Entends layout block
content
Hi-Hello World
 

Stooges.jade

Extends layout block
content
if (stooge)
 p #{stooge} are my favorite stooge.//#{stooge here Gets the parameter that is passed in when the JS renders the template
Else
 P No stooges listed 

With the above code, you can use Node.js and express to build a base node application.