利用Mongoose让JSON数据直接插入或更新到MongoDB

cd d:/workspace/project/nodejs-demo
npm install mongoose

D:\workspace\project\nodejs-demo\node_modules\mongoose\node_modules\mongodb\node_modu
C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\Microsoft.Cpp.InvalidPlatform.Targe
e_modules\mongodb\node_modules\bson\build\bson.vcxproj]
mongoose@3.6.10 node_modules\mongoose
├── muri@0.3.1
├── hooks@0.2.1
├── sliced@0.0.3
├── mpath@0.1.1
├── ms@0.1.0
├── mpromise@0.2.1 (sliced@0.0.4)
└── mongodb@1.3.3 (kerberos@0.0.2, bson@0.1.8)

var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/nodejs');
exports.mongoose = mongoose;

var mongodb = require('./mongodb');
var Schema = mongodb.mongoose.Schema;
var MovieSchema = new Schema({
name : String,
alias : [String],
publish : Date,
create_date : { type: Date, default: Date.now},
images :{
coverSmall:String,
coverBig:String,
},
source :[{
source:String,
link:String,
swfLink:String,
quality:String,
version:String,
lang:String,
subtitle:String,
create_date : { type: Date, default: Date.now }
}]
});
var Movie = mongodb.mongoose.model("Movie", MovieSchema);
var MovieDAO = function(){};
module.exports = new MovieDAO();

var express = require('express')
, routes = require('./routes')
, user = require('./routes/user')
, movie = require('./routes/movie')
, http = require('http')
, path = require('path')
, ejs = require('ejs')
, SessionStore = require("session-mongoose")(express);
...
app.get('/movie/add',movie.movieAdd);//增加
app.post('/movie/add',movie.doMovieAdd);//提交
app.get('/movie/:name',movie.movieAdd);//编辑查询
app.get('/movie/json/:name',movie.movieJSON);//JSON数据

var Movie = require('./../models/Movie.js');
exports.movieAdd = function(req, res) {
if(req.params.name){//update
return res.render('movie', {
title:req.params.name+'|电影|管理|moive.me',
label:'编辑电影:'+req.params.name,
movie:req.params.name
});
} else {
return res.render('movie',{
title:'新增加|电影|管理|moive.me',
label:'新增加电影',
movie:false
});
}
};
exports.doMovieAdd = function(req, res) {
res.send({'success':true});
};

<% include header.html %>
<div class="container-fluid">
<div class="row-fluid">
<div class="span8">
<form>
<fieldset>
<legend><%=label%></legend>
<textarea id="c_editor" name="c_editor" class="span12" rows="10"></textarea>
<button id="c_save" type="button" class="btn btn-primary">保存</button>
</fieldset>
<form>
</div>
</div>
</div>
<% include footer.html %>

{
"name": "未来警察",
"alias": ["Future X-Cops ","Mei loi ging chaat"],
"publish": "2010-04-29",
"images":{
"coverBig":"/img/movie/1_big.jpg",
"coverSmall":"/img/movie/1_small.jpg"
},
"source":[{
"source":"优酷",
"link":"http://www.youku.com",
"swfLink":"http://player.youku.com/player.php/sid/XMTY4NzM5ODc2/v.swf",
"quality":"高清",
"version":"正片",
"lang":"汉语",
"subtitle":"中文字幕"
},{
"source":"搜狐",
"link":"http://tv.sohu.com",
"swfLink":"http://share.vrs.sohu.com/75837/v.swf&topBar=1&autoplay=false&plid=3860&pub_catecode=",
"quality":"高清",
"version":"正片",
"lang":"汉语",
"subtitle":"中文字幕"
}]
}

<script src="/UploadFiles/2021-04-02/jquery-1.9.1.min.js">

在public/javascripts/目录，增加movie.js文件，作为前端脚本


$(function() {
var mdata={};
var url = '/javascripts/movie.json';
$.getJSON(url, function(data) {
mdata=data;
render_editor_form(mdata);
render_event_form(mdata);
});
var render_editor_form=function(data){
$('#c_editor').val($.toJSON(data));
};
var render_event_form=function(){
$('#c_save').on('click',function(event){
var data = {};
data['content'] = mdata;
$.ajax({
type: "POST",
url: '/movie/add',
data: data,
success: function (data, textStatus){
if(data.success){
$('#msg').html('成功保存!');
$('#msg').addClass('alert alert-success');
$(location).attr('href','/movie/'+mdata.name);
} else {
$('#msg').html(data.err);
$('#msg').addClass('alert alert-error');
}
}
});
});
};
});


修改views/footer.html，增加movie.js文件引用，同时增加jquery.json包


<script src="/UploadFiles/2021-04-02/jquery-1.9.1.min.js">

网页效果：http://localhost:3000/movie/add

在models/Movie.js，增加save方法


MovieDAO.prototype.save = function(obj, callback) {
var instance = new Movie(obj);
instance.save(function(err){
callback(err);
});
};


在routes/movie.js，调用save方法


exports.doMovieAdd = function(req, res) {
console.log(req.body.content);
var json = req.body.content;
if(json._id){//update
} else {//insert
Movie.save(json, function(err){
if(err) {
res.send({'success':false,'err':err});
} else {
res.send({'success':true});
}
});
}
};


控制台日志


Express server listening on port 3000
{ name: '未来警察',
alias: [ 'Future X-Cops ', 'Mei loi ging chaat' ],
publish: '2010-04-29',
images:
{ coverBig: '/img/movie/1_big.jpg',
coverSmall: '/img/movie/1_small.jpg' },
source:
[ { source: '优酷',
link: 'http://www.youku.com',
swfLink: 'http://player.youku.com/player.php/sid/XMTY4NzM5ODc2/v.swf',
quality: '高清',
version: '正片',
lang: '汉语',
subtitle: '中文字幕' },
{ source: '搜狐',
link: 'http://tv.sohu.com',
swfLink: 'http://share.vrs.sohu.com/75837/v.swf&topBar=1&autoplay=false&plid=3860&pub_ca
quality: '高清',
version: '正片',
lang: '汉语',
subtitle: '中文字幕' } ] }
POST /movie/add 200 57ms - 21b


数据已插入MongoDB

4. 查询数据，取出刚增加的记录
models/Movie.js,增加findByName方法


MovieDAO.prototype.findByName = function(name, callback) {
Movie.findOne({name:name}, function(err, obj){
callback(err, obj);
});
};


routes/movies.js,增加movieJSON


exports.movieJSON = function(req, res) {
Movie.findByName(req.params.name,function(err, obj){
res.send(obj);
});
}


前端javascripts/movie.js，从/movie/json/xxx处取数据


var mdata={};
var url = '/javascripts/movie.json';
var movie=$('#c_editor').attr('movie')
if(movie){
url = '/movie/json/'+movie;
}


修改 views/movie.html


<textarea id="c_editor" name="c_editor" rows="10" <%= (movie"movie='+movie+'"':'') %</textarea>


访问我们的网页
http://localhost:3000/movie/未来警察

数据从/movie/json/未来警察，处读取。完成尝试。
修改操作与插入的操作类似，我就不做演示了。
以上程序代码，大家可自行下载学习。


github地址：https://github.com/bsspirit/nodejs-demo
本地下载：http://xiazai.jb51.net/201705/yuanma/nodejs-demo(jb51.net).rar
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