Java 백엔드 기능 개발에서 네트워크 전송을 최적화하는 방법은 무엇입니까?

// 使用HTTP协议传输数据
URL url = new URL("http://example.com");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json");
OutputStream outputStream = connection.getOutputStream();
outputStream.write(jsonData.getBytes());
outputStream.flush();
outputStream.close();

// 使用Gzip压缩算法压缩数据
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
GZIPOutputStream gzipOutputStream = new GZIPOutputStream(byteArrayOutputStream);
gzipOutputStream.write(data);
gzipOutputStream.close();
byte[] compressedData = byteArrayOutputStream.toByteArray();

// 使用Gzip解压缩数据
ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(compressedData);
GZIPInputStream gzipInputStream = new GZIPInputStream(byteArrayInputStream);
byte[] decompressedData = IOUtils.toByteArray(gzipInputStream);

// 设置连接超时时间为5秒
URLConnection connection = url.openConnection();
connection.setConnectTimeout(5000);

// 创建连接池
PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
connectionManager.setMaxTotal(100);
connectionManager.setDefaultMaxPerRoute(20);

// 使用连接池获取连接
CloseableHttpClient client = HttpClients.custom()
        .setConnectionManager(connectionManager)
        .build();
HttpGet httpGet = new HttpGet("http://example.com");
CloseableHttpResponse response = client.execute(httpGet);

// 关闭连接
response.close();
client.close();

// 使用线程池同时传输多个文件
ExecutorService executorService = Executors.newFixedThreadPool(10);
List<Future<Void>> futures = new ArrayList<>();

for (File file : files) {
    Callable<Void> task = () -> {
        // 传输文件的逻辑
        return null;
    };

    futures.add(executorService.submit(task));
}

// 等待所有任务完成
for (Future<Void> future : futures) {
    future.get();
}

// 关闭线程池
executorService.shutdown();