nodejs（一）简单登录验证使用mongoose 操作MongoDB

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开发使用webstorm 9

新建nodejs+express 项目 newfarmer

文章目录

配置Mongoose
创建目录及文件
插入数据，POST提交JSON增加一条记录
查询数据，取出刚增加的记录

1. 配置Mongoose

增加mongoose的类库

npm install mongoose --save
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2.创建目录及文件

在models目录，增加mongodb.js文件 数据库连接文件
1 /**

  * Created by hao on 2014/12/28.

  */

 var mongoose = require('mongoose');

 mongoose.connect('mongodb://localhost/newfarmer');

 exports.mongoose = mongoose;

在models目录，增加users.js文件用户实体类

 /**

  * Created by hao on 2014/12/28.

  */

 var mongodb = require('./mongodb');

 var Schema = mongodb.mongoose.Schema;

 var UserSchema = new Schema({

     username: String,

     password: String,

     salt: String,

     hash: String

 });

 var User = mongodb.mongoose.model('users', UserSchema);

 var UserDAO = function(){};

 UserDAO.prototype.save = function(obj, callback) {

     var instance = new User(obj);

     instance.save(function(err){

         callback(err);

     });

 };

 UserDAO.prototype.findByName = function(name, callback) {

     User.findOne({username:name}, function(err, obj){

         callback(err, obj);

     });

 };

 module.exports = new UserDAO();