node js和mongodb更新表单数据

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

const app = express();
const port = 3000;

// 连接到MongoDB数据库
MongoClient.connect('mongodb://localhost:27017', (err, client) => {
  if (err) {
    console.error('Failed to connect to MongoDB:', err);
    return;
  }

  const db = client.db('mydb'); // 替换为实际的数据库名称
  const collection = db.collection('forms'); // 替换为实际的集合名称

  // 处理表单提交的请求
  app.post('/update', (req, res) => {
    const { id, field1, field2 } = req.body; // 假设表单包含id、field1和field2字段

    // 更新操作
    collection.updateOne({ _id: id }, { $set: { field1, field2 } }, (err, result) => {
      if (err) {
        console.error('Failed to update form data:', err);
        res.status(500).send('Failed to update form data');
        return;
      }

      res.send('Form data updated successfully');
    });
  });

  // 启动服务器
  app.listen(port, () => {
    console.log(`Server is listening on port ${port}`);
  });
});