node,express开发环境等安装假设已经搞好了。

justhacker@justhacker-ThinkPad-Edge-E440:~/projects/nodejs$ express -e chattingnode

   create : chattingnode
   create : chattingnode/package.json
   create : chattingnode/app.js
   create : chattingnode/public
   create : chattingnode/public/javascripts
   create : chattingnode/public/images
   create : chattingnode/public/stylesheets
   create : chattingnode/public/stylesheets/style.css
   create : chattingnode/routes
   create : chattingnode/routes/index.js
   create : chattingnode/routes/users.js
   create : chattingnode/views
   create : chattingnode/views/index.ejs
   create : chattingnode/views/error.ejs
   create : chattingnode/bin
   create : chattingnode/bin/www

   install dependencies:
     $ cd chattingnode && npm install

   run the app:
     $ DEBUG=my-application ./bin/www

接着

<pre name="code" class="java">justhacker@justhacker-ThinkPad-Edge-E440:~/projects/nodejs/chattingnode$ cd chattingnode && npm install

debug@0.7.4 node_modules/debug

static-favicon@1.0.2 node_modules/static-favicon

ejs@0.8.8 node_modules/ejs

morgan@1.0.1 node_modules/morgan
└── bytes@0.3.0

cookie-parser@1.0.1 node_modules/cookie-parser
├── cookie@0.1.0
└── cookie-signature@1.0.3

body-parser@1.0.2 node_modules/body-parser
├── qs@0.6.6
├── type-is@1.1.0 (mime@1.2.11)
└── raw-body@1.1.6 (bytes@1.0.0)

express@4.0.0 node_modules/express
├── methods@0.1.0
├── utils-merge@1.0.0
├── merge-descriptors@0.0.2
├── parseurl@1.0.1
├── escape-html@1.0.1
├── cookie-signature@1.0.3
├── range-parser@1.0.0
├── qs@0.6.6
├── buffer-crc32@0.2.1
├── fresh@0.2.2
├── cookie@0.1.0
├── path-to-regexp@0.1.2
├── type-is@1.0.0 (mime@1.2.11)
├── send@0.2.0 (mime@1.2.11)
├── accepts@1.0.0 (mime@1.2.11, negotiator@0.3.0)
└── serve-static@1.0.1 (send@0.1.4)

justhacker@justhacker-ThinkPad-Edge-E440:~/projects/nodejs/chattingnode$ ls
app.js  bin  node_modules  package.json  public  routes  views

justhacker@justhacker-ThinkPad-Edge-E440:~/projects/nodejs/chattingnode$ node ./bin/www
GET / 200 10ms - 207b
GET /stylesheets/style.css 200 6ms - 110b

项目源码地址：https://github.com/edagarli/chattingnode

可关注。之后会不断更新。