手机主服务器访问速度慢

const http = require('http');

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello World\n');
});

server.listen(3000, '127.0.0.1', () => {
  console.log('Server running at http://127.0.0.1:3000/');
});

server {
  listen 80;
  server_name example.com;

  location / {
    proxy_pass http://127.0.0.1:3000;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
  }
}

const redis = require('redis');
const client = redis.createClient();

client.on('error', (err) => {
  console.log('Error ' + err);
});

app.get('/data', (req, res) => {
  const key = 'some_key';
  client.get(key, (err, data) => {
    if (err) throw err;
    if (data !== null) {
      res.send(data);
    } else {
      // 从数据库获取数据并缓存
      const dbData = 'some_data_from_db';
      client.setex(key, 3600, dbData);
      res.send(dbData);
    }
  });
});