nodejs+mongoose连

var mongoose = require('mongoose'),DB_URL = 'mongodb://192.168.5.128:27017/mongoosesample';/** * 建立连接 */function mongoConnection() {    return mongoose.connect(DB_URL).connection;}/** * 判断连接状态 */mongoConnection()    .on('error',function(err){        console.log('Mongoose connection error: ' + err);    })    .on('disconnected',function () {        console.log('Mongoose connection disconnected');    })    .on('connected',function () {        console.log('Mongoose connection open to ' + DB_URL);    });

如果需要改变mongodb的绑定URL，则修改mongodb配置文件 /etc/mongodb.conf

加上：bind_ip：192.168.5.128

连接的DB_URL，如果是本地就改为：

'mongodb://localhost:27017/mongoosesample';

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连接到Mongodb之后，插入数据：

把下面的代码保存为：mongoTest.js

var mongoose = require('mongoose'),DB_URL = 'mongodb://192.168.5.128:27017/mongoosesample';module.exports= {    mongoConn:mongoConnection(),    schemaModule:schema_module()};/** * 建立连接 */function mongoConnection() {    return mongoose.connect(DB_URL).connection;}/** * 判断连接状态 */mongoConnection()    .on('error',function(err){        console.log('Mongoose connection error: ' + err);    })    .on('disconnected',function () {        console.log('Mongoose connection disconnected');    })    .on('connected',function () {        console.log('Mongoose connection open to ' + DB_URL);    });/** * 创建module */function schema_module() {    var Schema = mongoose.Schema;    //声明Schema    var nodeSchema = new Schema({        name: String,        email: String    });    //构建model    return mongoose.model('Info', nodeSchema);}

然后新建一个test.js

let mongoTest = require('./mongoTest')mongoTest.mongoConnmongoTest.schemaModule.create({'name':"zhang","email":"[e-mail]"},function(err){    if(err){        console.log(err);    }else{        console.log('The new node is saved');    }});

执行test.js就可以把

{'name':"zhang","email":"[e-mail]"}

插入到infos这个文档中。

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查询数据：

在test.js中加入查询数据的代码

let mongoTest = require('./mongoTest')mongoTest.mongoConnmongoTest.schemaModule1.create({'name':"liu","email":"mmm"},function(err){    if(err){        console.log(err);    }else{        console.log('The new node to info is saved');    }});mongoTest.schemaModule2.create({'t1':"t11","t2":"t22","t3":"t33"},function(err){    if(err){        console.log(err);    }else{        console.log('The new node to table is saved');    }});let query = mongoTest.schemaModule1.find({});query.find({name: "liu"});//或：query.where({name: "liu"})query.exec(function (err, data) {    if (err) console.log(err);    else{ console.log(data)}});

let query = mongoTest.schemaModule1.find({});

不加查询条件，则返回的是整 个文档。

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删除

 mongoTest.schemaModule1.remove({});