[Node.js] 기본적인 MongoDB 연결과 확인

1. MongoDB 설치 : https://hoonjo.tistory.com/21

[MongoDB] MongoDB 설치

 

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2. MongoDB Plugin 설치 & MongoDB 연결 (IntelliJ) : https://hoonjo.tistory.com/22

[MongoDB] MongoDB Plugin 설치 (IntelliJ)

(MongoDB 실행 명령 : Command > mongod --dbpath  C:\MongoDB\db)

 

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3. MongoDB CRUD : https://hoonjo.tistory.com/23

[MongoDB] CRUD

Ref. https://poiemaweb.com/mongdb-basics-shell-crud

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4. mongoose module 설치

 

https://hoonjo.tistory.com/24

[MongoDB] Mongoose module 설치

 

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5. 연결 테스트

 

(1) 연결 정보 추가 (index.js)

/* index.js */
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost:27017/test');
var db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', function callback () {
    console.log("mongo db connection OK.");
});

(2) Run

정상적으로 연결된 경우 "mongo db connection OK." 이 출력된다.

 

(3) Sample

/* index.js */
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost:27017/test');
var db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', function callback () {
    console.log("mongo db connection OK.");
});

var testSchema = mongoose.Schema({
    name: String
});

testSchema.methods.speak = function () {
    var greeting = this.name
        ? "Meow name is " + this.name
        : "I don't have a name"
    console.log("speak() - " + greeting);
}

var TestModel = mongoose.model("TestModel", testSchema);

var testIns = new TestModel({ name: "testIns"});

testIns.save(function(err, testIns){
    if(err) return console.error(err);
    testIns.speak();
});

TestModel.find(function(err, models){
    if(err) return console.error(err);
    console.log("find() - "+models);
});

TestModel.find({name:/^testIns/});

 

(4) Run 

> 결과

"C:\Program Files\JetBrains\IntelliJ IDEA 2017.2.1\bin\runnerw.exe" "C:\Program Files\nodejs\node.exe" "C:\workspace\Study\Hello NodeJS\bin\www"
(node:19736) DeprecationWarning: current URL string parser is deprecated, and will be removed in a future version. To use the new parser, pass option { useNewUrlParser: true } to MongoClient.connect.
(node:19736) DeprecationWarning: current Server Discovery and Monitoring engine is deprecated, and will be removed in a future version. To use the new Server Discover and Monitoring engine, pass option { useUnifiedTopology: true } to the MongoClient constructor.
mongo db connection OK.
find() - 
speak() - Meow name is testIns

 

6. 데이터 확인

 

#1. MongoDB 접속

PS C:\Users\line play> mongo
MongoDB shell version v4.2.3
connecting to: mongodb://127.0.0.1:27017/?compressors=disabled&gssapiServiceName=mongodb
Implicit session: session { "id" : UUID("생략") }
MongoDB server version: 4.2.3
Server has startup warnings:
2020-02-10T23:56:58.741-0700 I  CONTROL  [initandlisten]
2020-02-10T23:56:58.741-0700 I  CONTROL  [initandlisten] ** WARNING: Access control is not enabled for the database.
2020-02-10T23:56:58.741-0700 I  CONTROL  [initandlisten] **          Read and write access to data and configuration is unrestricted.
2020-02-10T23:56:58.741-0700 I  CONTROL  [initandlisten]
2020-02-10T23:56:58.741-0700 I  CONTROL  [initandlisten] ** WARNING: This server is bound to localhost.
2020-02-10T23:56:58.741-0700 I  CONTROL  [initandlisten] **          Remote systems will be unable to connect to this server.
2020-02-10T23:56:58.741-0700 I  CONTROL  [initandlisten] **          Start the server with --bind_ip <address> to specify which IP
2020-02-10T23:56:58.741-0700 I  CONTROL  [initandlisten] **          addresses it should serve responses from, or with --bind_ip_all to
2020-02-10T23:56:58.742-0700 I  CONTROL  [initandlisten] **          bind to all interfaces. If this behavior is desired, start the
2020-02-10T23:56:58.742-0700 I  CONTROL  [initandlisten] **          server with --bind_ip 127.0.0.1 to disable this warning.
2020-02-10T23:56:58.742-0700 I  CONTROL  [initandlisten]
MongoDB Enterprise >

#2. "test" DB 접속

MongoDB Enterprise > use test
switched to db test
MongoDB Enterprise > db
test
MongoDB Enterprise > show dbs
admin   0.000GB
config  0.000GB
local   0.000GB
test    0.000GB
MongoDB Enterprise >

#3. "testmodels" Collection 확인

MongoDB Enterprise > show collections
testmodels
MongoDB Enterprise > db.test.find()
MongoDB Enterprise > db.testmodels.find()
{ "_id" : ObjectId("5e425379f662ab4d181980dd"), "name" : "testIns", "__v" : 0 }
MongoDB Enterprise >

 

Ref. https://jdm.kr/blog/21 / https://code-reading.tistory.com/10

 

 

 

 

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TODO. 관심사 추가 - HBASE