无法在mongo中使用PUT in node express更新名称

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

const app = express();
const MongoClient = mongodb.MongoClient;
const url = 'mongodb://localhost:27017'; // MongoDB连接URL
const dbName = 'your_database_name'; // 数据库名称
const collectionName = 'your_collection_name'; // 集合名称

app.put('/documents/:id', (req, res) => {
  const documentId = req.params.id;
  const newDocumentName = req.body.name;

  MongoClient.connect(url, (err, client) => {
    if (err) {
      console.error('Failed to connect to MongoDB:', err);
      res.status(500).send('Failed to connect to MongoDB');
      return;
    }

    const db = client.db(dbName);
    const collection = db.collection(collectionName);

    // 查询并获取要更新的文档
    collection.findOne({ _id: mongodb.ObjectId(documentId) }, (err, document) => {
      if (err) {
        console.error('Failed to find document:', err);
        res.status(500).send('Failed to find document');
        client.close();
        return;
      }

      if (!document) {
        res.status(404).send('Document not found');
        client.close();
        return;
      }

      // 创建一个新的文档，更新名称
      const newDocument = { ...document, name: newDocumentName };

      // 删除旧的文档
      collection.deleteOne({ _id: mongodb.ObjectId(documentId) }, (err) => {
        if (err) {
          console.error('Failed to delete document:', err);
          res.status(500).send('Failed to delete document');
          client.close();
          return;
        }

        // 插入新的文档
        collection.insertOne(newDocument, (err) => {
          if (err) {
            console.error('Failed to insert document:', err);
            res.status(500).send('Failed to insert document');
            client.close();
            return;
          }

          res.send('Document updated successfully');
          client.close();
        });
      });
    });
  });
});

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});