如何停止NodeJS/Express缓存mongodb查询结果

const User = require('./models/user');

app.get('/users', async (req, res) => {
  const users = await User.find().lean();
  res.json(users);
});

const User = require('./models/user');

app.get('/users', async (req, res) => {
  const users = await User.find().select('name email');
  res.json(users);
});

app.get('/users', (req, res) => {
  res.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate');
  res.setHeader('Pragma', 'no-cache');
  res.setHeader('Expires', '0');
  
  // 查询数据库并返回结果
});