使用React从MongoDb接收数据

import React, { useState, useEffect } from 'react';
import mongodb from 'mongodb';

const { MongoClient } = mongodb;

const connectionString = 'mongodb://localhost:27017/mydatabase';

const MyComponent = () => {
  const [data, setData] = useState([]);

  useEffect(() => {
    const fetchData = async () => {
      try {
        const client = await MongoClient.connect(connectionString);
        const db = client.db();
        const collection = db.collection('mycollection');
        const result = await collection.find().toArray();
        setData(result);
        client.close();
      } catch (error) {
        console.error(error);
      }
    };

    fetchData();
  }, []);

  return (
    <div>
      {data.map((item) => (
        <div key={item._id}>{item.name}</div>
      ))}
    </div>
  );
};

export default MyComponent;