接收位图(.bmp)图像的node.js net.socket客户端

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

const client = net.createConnection({ port: 8080 }, () => {
  console.log('Connected to server');
});

let receivedData = Buffer.alloc(0);

client.on('data', (data) => {
  receivedData = Buffer.concat([receivedData, data]);
});

client.on('end', () => {
  // 解析位图文件头
  const fileSize = receivedData.readUInt32LE(2);
  const width = receivedData.readUInt32LE(18);
  const height = receivedData.readUInt32LE(22);
  const colorDepth = receivedData.readUInt16LE(28);

  // 解析位图数据
  const bitmapData = receivedData.slice(54);

  // 保存位图数据到文件
  fs.writeFile('image.bmp', bitmapData, (err) => {
    if (err) throw err;
    console.log('Image saved successfully');
  });

  client.end();
});

client.on('error', (err) => {
  console.error('Error:', err);
});