4.Mongoose使用
#4.1.nodejs操作mongodb
文檔地址：http://mongodb.github.io/node-mongodb-native/3.2/tutorials/crud/
1.安裝mongodb驅(qū)動(dòng)
npm install mongodb --save-dev
2.連接數(shù)據(jù)庫(kù)
const MongoClient = require('mongodb').MongoClient;
var dburl = "mongodb://admin:123456@127.0.0.1:27017";
MongoClient.connect(dburl, {useNewUrlParser:true}, (err,client)=>{
if(err){
console.log('數(shù)據(jù)庫(kù)連接失敗！');
return;
};
const db = client.db("test")
});
3.插入數(shù)據(jù)
const MongoClient = require('mongodb').MongoClient;
var url = "mongodb://admin:123456@127.0.0.1:27017";
var client = new MongoClient(url)
client.connect((err,client)=>{
if(err){
console.log('數(shù)據(jù)庫(kù)連接失敗攘须！');
return;
};
const db = client.db("test")
// 插入數(shù)據(jù)
db.collection("user").insertOne({"name": "nodeing", "age": 18}, (err, result) => {
console.log(result)
})
});
4.更新數(shù)據(jù)
const MongoClient = require('mongodb').MongoClient;
var url = "mongodb://admin:123456@127.0.0.1:27017";
var client = new MongoClient(url)
client.connect((err,client)=>{
if(err){
console.log('數(shù)據(jù)庫(kù)連接失敗呢堰！');
return;
};
const db = client.db("test")
db.collection('user').updateOne({"name": "nodeing"}, {$set: {"age": 38}}, (err, result)=>{
console.log(result)
client.close();
})
});
5.刪除數(shù)據(jù)
const MongoClient = require('mongodb').MongoClient;
var url = "mongodb://admin:123456@127.0.0.1:27017";
var client = new MongoClient(url)
client.connect((err,client)=>{
if(err){
console.log('數(shù)據(jù)庫(kù)連接失斢炝！');
return;
};
const db = client.db("test")
db.collection('user').deleteOne({"name": "nodeing"}, (err, result)=>{
console.log(result)
client.close();
})
});
