http代理工作原理（1）(三)
}
}
}
private static void copy(InputStream inputStream, OutputStream outputStream, int bufferSize) throws IOException
{
int length = 0;
byte[] buffer = new byte[bufferSize];
while((length = inputStream.read(buffer, 0, bufferSize)) > -1)
{
outputStream.write(buffer, 0, length);
}
outputStream.flush();
}
}