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我正在将一个 300 MB 的大文件从客户端复制到服务器。我在本地设置了客户端和服务器（weblogic），但传输仍然太慢。无论如何，只有当我将服务器与客户端放在同一台机器上时才能加快速度？这是我正在使用的代码：

boolean decodeStream = false;
bytesRead = istream.read(buffer, 0, BUFFER_SIZE);
if (bytesRead != -1 && Base64.isArrayByteBase64(buffer))
{
  decodeStream = true;
}
istream.close();

//write the file to the file specified
// if createFile then create a new file
// otherwise append.
OutputStream bos = new FileOutputStream(fileNamePath, !createFile); // second parameter, if true then append...
istream         = file.getInputStream();

if (decodeStream)
{
  // File is encoded, decode it.
  Logger.log("(perform) Decoding file: " + fileNamePath, _moduleName, Logger.DEBUG);

  // Stream came in encoded, so we need to decode it.
  Base64.InputStream stream = new Base64.InputStream(istream);

  while ((bytesRead = stream.read(buffer, 0, BUFFER_SIZE)) != -1)
  {
    bos.write(buffer, 0, bytesRead);
  }

  stream.close();
}
else
{
  // File is not encoded.
  while ((bytesRead = istream.read(buffer, 0, BUFFER_SIZE)) != -1)
  {
    bos.write(buffer, 0, bytesRead);
  }
}
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1 回答 1

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您可以通过使用缓冲 io 来提高速度

OutputStream bos = new BufferedOutputStream(FileOutputStream(fileNamePath, !createFile));
istream         = new BufferedInputStream(file.getInputStream());

默认情况下，JVM 使用 8kB 的缓冲区。我不知道你的 BUFFER_SIZE 是什么。

于 2015-02-03T14:37:11.137 回答