node.js operation mongodb learning summary
- 2020-06-01 08:11:49
- OfStack
1. Preparation
1. Create the table to read in mongodb
Create the database mongotest
use mongotest;
Insert data into the user table
db.user.insert({
name:'flyoung',
age:'18',
sex:true
});
2. Install node-mongodb-native
npm install mongodb
2. Instance (node.js reads mongodb)
Reference node mongodb - native document: https: / / github com mongodb/node mongodb -- native
var mongodb = require('mongodb');
var server = new mongodb.Server("127.0.0.1",27017,{});// local 27017 port
new mongodb.Db('mongotest',server,{}).open(function(error,client){// Database: mongotest
if(error) throw error;
var collection = new mongodb.Collection(client,'user');// Table: user
collection.find(function(error,cursor){
cursor.each(function(error,doc){
if(doc){
console.log("name:"+doc.name+" age:"+doc.age);
}
});
});
});
Run:
node mongodbTest.js
Results:
name:flyoung age:18
3. Write at the end
Add, delete, change and check demo reference document