mode 连接 MongoDB 插入内容

1.插入单条  -- insertOne

var MongoClient = require('mongodb').MongoClient;
var url = require('./config/keys').mongoURI;

/**
 * 插入单条
 * insertOne
*/
MongoClient.connect(url, { useNewUrlParser: true, useUnifiedTopology: true }, function(err, db) {
  if(err) throw err;
  var dbo = db.db('koa'); // koa 库名
  var myobj = { name: '测试人员', type: 1, like: ['唱', '跳', '搞代码']};
  dbo.collection('users').insertOne(myobj, function(err, res) { // users 表名
    if(err) throw err;
    console.log('人员信息插入成功', res);
    db.close();
  })
});

2.插入多条 -- insertMany

var MongoClient = require('mongodb').MongoClient;
var url = require('./config/keys').mongoURI;

/**
 * 插入多条
 * insertMany
*/
MongoClient.connect(url, { useNewUrlParser: true, useUnifiedTopology: true }, function(err, db) {
  if(err) throw err;
  var dbo = db.db('koa'); // koa 库名
  var myobj = [
    { name: '张三', type: 1, like: ['唱', '跳', '搞代码']},
    { name: '李四', type: 1, like: ['唱', '跳', '搞代码']},
    { name: '王五', type: 1, like: ['唱', '跳', '搞代码']}
  ];
  dbo.collection('users').insertMany(myobj, function(err, res) { // users 表名
    if(err) throw err;
    console.log('人员信息插入成功', res.insertedCount);
    db.close();
  })
});

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