如何使用FormData()将对象数组从React Js发送到Nodejs，MongoDB？

const formData = new FormData();
data.forEach((item, index) => {
  formData.append(`data[${index}].property1`, item.property1);
  formData.append(`data[${index}].property2`, item.property2);
  // 添加其他属性...
});

fetch('/api/saveData', {
  method: 'POST',
  body: formData
})
.then(response => response.json())
.then(data => {
  // 处理响应数据
})
.catch(error => {
  // 处理错误
});

const multer = require('multer');
const upload = multer();

app.post('/api/saveData', upload.none(), (req, res) => {
  // 处理FormData数据
  const data = req.body.data;
  // 将数据存储到MongoDB等数据库中
  // ...
});

const MongoClient = require('mongodb').MongoClient;
const url = 'mongodb://localhost:27017';
const dbName = 'your-database-name';

MongoClient.connect(url, (err, client) => {
  if (err) {
    console.error('Failed to connect to database:', err);
    return;
  }

  const db = client.db(dbName);
  const collection = db.collection('your-collection-name');

  // 存储数据到MongoDB
  collection.insertMany(data, (err, result) => {
    if (err) {
      console.error('Failed to insert data:', err);
      return;
    }

    console.log('Data inserted successfully');
    client.close();
  });
});