根据数组的集合值获取_id，并插入到mongodb集合中。

const mongoose = require('mongoose');

// 连接到MongoDB数据库
mongoose.connect('mongodb://localhost/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true })
  .then(() => {
    console.log('Connected to MongoDB');
    
    // 创建集合
    const myCollectionSchema = new mongoose.Schema({
      value: String
    });
    const MyCollection = mongoose.model('MyCollection', myCollectionSchema);
    
    // 根据集合值获取_id并插入到集合中
    const collectionValues = ['value1', 'value2', 'value3'];
    const documents = collectionValues.map(value => ({ value }));
    
    MyCollection.insertMany(documents)
      .then(result => {
        console.log('Documents inserted:', result);
        mongoose.disconnect();
      })
      .catch(error => {
        console.error('Error inserting documents:', error);
        mongoose.disconnect();
      });
  })
  .catch(error => {
    console.error('Error connecting to MongoDB:', error);
  });