mongoose createCollectionh和connect 模块化

db.js

var mongoose = require('mongoose');

mongoose.Promise = global.Promise;

module.exports = mongoose.createConnection('localhost','test');

user.js

var mongoose = require('mongoose');
var db = require('./db.js'),
Schema = mongoose.Schema;


var UserSchema = new Schema({
username : {
type: String
},
userpwd: {
type: String
},
userage: {
type: Number
},
logindate : {
type: Date
}
});


module.exports = db.model('User',UserSchema);

test.js

var User = require("./user.js");
function insert() {
var user = new User({
username : ‘coding',
userpwd: ‘ahahhaha', 
userage: 24, 
logindate : new Date() 
});

user.save(function (err, res) {

if (err) {
console.log("Error:" + err);
}
else {
console.log("Res:" + res);
}
});
}

insert();

http://www.cnblogs.com/zhongweiv/p/mongoose.html#mg_install

这是另一种connect的链接