node和数据库建立连接

var express = require(\'express\')
  , app = express();
var querystring = require(\'querystring\');
var util = require(\'util\');
var mysql  = require(\'mysql\');  
var connection = mysql.createConnection({     
  host     : \'localhost\',       
  user     : \'root\',              
  password : \'123456\',       
  // port: \'3306\',                   
  database: \'test\',  //数据库名称
}); 
 
connection.connect();