morgan输出日志

使用:var logger = require('morgan');

// 定义日志和输出级别

app.use(logger('dev'));

dev

Concise output colored by response status for development use. The:statustoken will be colored red for server error codes, yellow for client error codes, cyan for redirection codes, and uncolored for all other codes.

:method :url :status :response-time ms - :res[content-length]

short

Shorter than default, also including response time.

:remote-addr :remote-user :method :url HTTP/:http-version :status :res[content-length] - :response-time ms

tiny

The minimal output.

:method :url :status :res[content-length] - :response-time ms