如何在Node.js express路由上显示从外部URL获取的图像

npm install express

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

const request = require('request');

app.get('/image', (req, res) => {
  const imageUrl = 'https://example.com/image.jpg'; // 替换为实际的外部图像URL

  request.get(imageUrl)
    .on('response', (response) => {
      if (response.statusCode === 200) {
        response.pipe(res);
      } else {
        res.status(404).send('Image not found');
      }
    })
    .on('error', (err) => {
      console.error(err);
      res.status(500).send('Internal server error');
    });
});

const port = 3000; // 替换为实际的端口号

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