在node中使用mongodb

npm i mongodb
引入MongoClient模块并设置数据库的地址

const {MongoClient} = require('mongodb')
const client = new MongoClient('mongodb://127.0.0.1:27017')

const main = async ()=>{
    await client.connect()
    const db = client.db('mytest') //查看的库
    const ff = db.collection('ff') //查看集合
    var d =  await ff.find()
    console.log(await d.toArray());
}
//查询结束后断开连接
main().finally(()=>{ 
    client.close()
})