如何从express后端服务器获取图像并将其显示到React Native前端？

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

const app = express();

app.get('/image', (req, res) => {
  fs.readFile('path/to/image.jpg', (err, data) => {
    if (err) {
      res.status(500).send('Error reading image file');
    } else {
      res.set('Content-Type', 'image/jpeg');
      res.send(data);
    }
  });
});

app.listen(3000, () => {
  console.log('Express server is running on port 3000');
});

fetch('http://your-express-server/image')
  .then(response => response.blob())
  .then(blob => {
    const uri = URL.createObjectURL(blob);
    // 使用uri在图像组件中显示图像
  })
  .catch(error => {
    console.error('Error fetching image:', error);
  });