如何在Express.js中缓存从磁盘读取的特定路由

npm install memory-cache
const cache = require('memory-cache');

function cacheMiddleware(req, res, next) {
  const key = '__express__' + req.originalUrl || req.url;
  const cachedBody = cache.get(key);

  if (cachedBody) {
    res.send(cachedBody);
  } else {
    res.sendResponse = res.send;
    res.send = (body) => {
      cache.put(key, body);
      res.sendResponse(body);
    };
    next();
  }
}

app.get('/your-route', cacheMiddleware, (req, res) => {
  // 从磁盘读取数据的逻辑
  // ...
  res.send(data);
});