使用Node.js和Express搭建图片缓存服务或应用服务器

使用Node.js和Express生成缩略图：

const express = require('express');
const sharp = require('sharp');
const app = express();
const port = 3000;app.get('/thumbnail/:filename', async (req, res) => {const filename = req.params.filename;const imagePath = `/path/to/images/${filename}`;sharp(imagePath).resize(100, 100) // 设置缩略图尺寸.toBuffer().then(data => {res.type('jpeg'); // 根据需要设置正确的MIME类型res.send(data);}).catch(err => {console.error(err);res.status(500).send('Error generating thumbnail');});
});app.listen(port, () => {console.log(`Thumbnail server running at http://localhost:${port}`);
});

配置nginx反向代理：

location /thumbnail/ {proxy_pass http://localhost:3000/; # Node.js应用地址proxy_set_header Host $host; # 传递主机头信息到后端服务器proxy_set_header X-Real-IP $remote_addr; # 传递客户端IP地址到后端服务器proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; # 传递X
}