[Node JS] 用 Express 來建構HTTP服務(1) - Create Project

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緣由

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最近要用Node JS 建立一個後台服務，同事介紹用Express來做。

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使用

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安裝的過程請參考第2篇"安裝Express" 教學

當你要建立一個專案時，可以透過express-generator  

來幫你產生專案所需要的基本內容。

(1)先安裝express-generator

 npm install express-generator -g

boywhys-MacBook-Pro:express boywhychen$ sudo npm install express-generator -g
Password:
/usr/local/bin/express -> /usr/local/lib/node_modules/express-generator/bin/express
express-generator@4.13.1 /usr/local/lib/node_modules/express-generator
├── sorted-object@1.0.0
├── commander@2.7.1 (graceful-readlink@1.0.1)
└── mkdirp@0.5.1 (minimist@0.0.8)
boywhys-MacBook-Pro:express boywhychen$ 

(2)建立你的專案，假如名稱叫mysite

express mysite

boywhys-MacBook-Pro:express boywhychen$ express mysite

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

   install dependencies:
     $ cd mysite && npm install

   run the app:
     $ DEBUG=mysite:* npm start

boywhys-MacBook-Pro:express boywhychen$ 

(3) 進入專案資料夾

cd mysite

(4) 安裝專案

npm install

boywhys-MacBook-Pro:mysite boywhychen$ npm install
npm WARN deprecated jade@1.11.0: Jade has been renamed to pug, please install the latest version of pug instead of jade
debug@2.2.0 node_modules/debug
└── ms@0.7.1

serve-favicon@2.3.0 node_modules/serve-favicon
├── fresh@0.3.0
├── parseurl@1.3.1
├── etag@1.7.0
└── ms@0.7.1

cookie-parser@1.3.5 node_modules/cookie-parser
├── cookie@0.1.3
└── cookie-signature@1.0.6

morgan@1.6.1 node_modules/morgan
├── on-headers@1.0.1
├── basic-auth@1.0.3
├── depd@1.0.1
└── on-finished@2.3.0 (ee-first@1.1.1)

body-parser@1.13.3 node_modules/body-parser
├── bytes@2.1.0
├── content-type@1.0.1
├── depd@1.0.1
├── qs@4.0.0
├── on-finished@2.3.0 (ee-first@1.1.1)
├── http-errors@1.3.1 (statuses@1.2.1, inherits@2.0.1)
├── iconv-lite@0.4.11
├── raw-body@2.1.6 (unpipe@1.0.0, bytes@2.3.0, iconv-lite@0.4.13)
└── type-is@1.6.12 (media-typer@0.3.0, mime-types@2.1.11)

express@4.13.4 node_modules/express
├── escape-html@1.0.3
├── array-flatten@1.1.1
├── cookie-signature@1.0.6
├── merge-descriptors@1.0.1
├── content-type@1.0.1
├── methods@1.1.2
├── etag@1.7.0
├── vary@1.0.1
├── parseurl@1.3.1
├── cookie@0.1.5
├── content-disposition@0.5.1
├── path-to-regexp@0.1.7

(5)啟動專案(這裡是MAC，Windows 啟動字串不太一樣）

DEBUG=mysite:* npm start

oywhys-MacBook-Pro:mysite boywhychen$ DEBUG=mysite:* npm start

> mysite@0.0.0 start /Users/boywhychen/express/mysite
> node ./bin/www

  mysite:server Listening on port 3000 +0ms

此時服務己經work起來了, 在瀏覽器打上 http://localhost:3000/

會看到如下圖的畫面代表成功了

參考資料：

Express 中文官網

http://expressjs.com/zh-tw/

安裝Express

http://expressjs.com/zh-tw/starter/installing.html

What is Express? Why use Express?

http://cythilya.blogspot.tw/2014/11/nodejs-express-microblog.html