在Node中加入两个不同的集合表单mongoDB

npm install mongodb

const MongoClient = require('mongodb').MongoClient;

// 连接数据库
MongoClient.connect('mongodb://localhost:27017', (err, client) => {
  if (err) throw err;

  // 选择数据库
  const db = client.db('mydatabase');

  // 创建第一个集合表
  db.createCollection('collection1', (err, collection1) => {
    if (err) throw err;
    console.log('Collection1 created');

    // 创建第二个集合表
    db.createCollection('collection2', (err, collection2) => {
      if (err) throw err;
      console.log('Collection2 created');

      // 在集合表中插入数据
      const data1 = { name: 'John', age: 30 };
      collection1.insertOne(data1, (err, result) => {
        if (err) throw err;
        console.log('Data inserted into collection1');

        const data2 = { name: 'Jane', age: 25 };
        collection2.insertOne(data2, (err, result) => {
          if (err) throw err;
          console.log('Data inserted into collection2');

          // 关闭数据库连接
          client.close();
        });
      });
    });
  });
});