Express application generator的使用

首先拷贝express官网的一篇文章：

(http://expressjs.com/en/starter/generator.html )

Express application generator

Use the application generator tool, express-generator, to quickly create an application skeleton.

The express-generator package installs the express command-line tool. Use the following command to do so:

$ npm install express-generator -g

Display the command options with the -h option:

$ express -h

 

Usage: express [options] [dir]

 

Options:

 

-h, --help output usage information

--version output the version number

-e, --ejs add ejs engine support

--hbs add handlebars engine support

--pug add pug engine support

-H, --hogan add hogan.js engine support

-v, --view <engine> add view <engine> support (ejs|hbs|hjs|jade|pug|twig|vash) (defaults to jade)

-c, --css <engine> add stylesheet <engine> support (less|stylus|compass|sass) (defaults to plain css)

--git add .gitignore

-f, --force force on non-empty directory

For example, the following creates an Express app named myapp. The app will be created in a folder named myapp in the current working directory and the view engine will be set to Pug:

$ express --view=pug myapp

 

create : myapp

create : myapp/package.json

create : myapp/app.js

create : myapp/public

create : myapp/public/javascripts

create : myapp/public/images

create : myapp/routes

create : myapp/routes/index.js

create : myapp/routes/users.js

create : myapp/public/stylesheets

create : myapp/public/stylesheets/style.css

create : myapp/views

create : myapp/views/index.pug

create : myapp/views/layout.pug

create : myapp/views/error.pug

create : myapp/bin

create : myapp/bin/www

Then install dependencies:

$ cd myapp

$ npm install

On MacOS or Linux, run the app with this command:

$ DEBUG=myapp:* npm start

On Windows, use this command:

> set DEBUG=myapp:* & npm start

Then load http://localhost:3000/ in your browser to access the app.

The generated app has the following directory structure:

.

├── app.js

├── bin

│ └── www

├── package.json

├── public

│ ├── images

│ ├── javascripts

│ └── stylesheets

│ └── style.css

├── routes

│ ├── index.js

│ └── users.js

└── views

├── error.pug

├── index.pug

└── layout.pug

 

7 directories, 9 files

 

这里需要注意的是：

1. 需要把npm的路径加入到系统的环境变量中去。不然的话即使安装了express-generator，命令行也无法识别express命令。加入环境变量后要重启命令行才可以。

   Npm的路径通常为c:\users\<user name>\appdata\roaming\npm

2. 然后按照上面文章中的步骤执行即可, 里面的—view可以选择jade,这个我比较熟悉。