nodejs下载新创建的文件

const fs = require('fs');

const filePath = 'path/to/newfile.txt';
const content = 'This is the content of the new file.';

fs.writeFile(filePath, content, (err) => {
  if (err) {
    console.error('Error creating file:', err);
  } else {
    console.log('File created and written successfully.');
  }
});

const http = require('http');

http.createServer((req, res) => {
  const filePath = 'path/to/newfile.txt';

  fs.readFile(filePath, (err, data) => {
    if (err) {
      console.error('Error reading file:', err);
      res.statusCode = 500;
      res.end('Error reading file');
    } else {
      res.setHeader('Content-Disposition', 'attachment; filename="newfile.txt"');
      res.end(data);
    }
  });
}).listen(3000, () => {
  console.log('Server is running on port 3000');
});