使用express issue从MongoDB查看Pug中的所有数据

npm install express mongodb

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

const app = express();
const MongoClient = mongodb.MongoClient;
const url = 'mongodb://localhost:27017/mydatabase'; // 替换为实际的MongoDB连接URL

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

  console.log('Connected to MongoDB');

  // 在这里编写处理请求的代码
});

app.get('/', (req, res) => {
  const db = client.db('mydatabase');
  const collection = db.collection('mycollection'); // 替换为实际的集合名称

  collection.find({}).toArray((err, documents) => {
    if (err) {
      console.error('Failed to fetch documents from MongoDB:', err);
      return;
    }

    res.render('index', { documents }); // 渲染Pug模板，并传递查询结果
  });
});