如何利用nodejs实现http文件下载功能

nodejs语法如何实现http文件下载，下面web建站小编给大家简单介绍一下！

具体代码如下：

const http = require('http');
const fs = require('fs');
 
const server = http.createServer((req, res) => {
  console.log('Request received');
 
  const fileUrl = req.url.slice(1);
  const filePath = `./${fileUrl}`;
 
  fs.stat(filePath, (err, stats) => {
    if (err) {
      res.statusCode = 404;
      res.end('File not found');
      return;
    }
 
    fs.readFile(filePath, (err, data) => {
      if (err) {
        res.statusCode = 500;
        res.end('Error reading file');
        return;
      }
 
      res.setHeader('Content-Disposition', `attachment; filename=${fileUrl}`);
      res.setHeader('Content-Type', 'application/octet-stream');
      res.setHeader('Content-Length', stats.size);
      res.end(data);
    });
  });
});

server.listen(3000, () => {
  console.log('Server started on port 3000');
});